# Reference Source

> Sourced reference datasets. Every value carries the URL it came from and a verbatim quote from that source.

Every value carries a source URL and a verbatim quote from that source.
Each dataset is available as HTML, as JSON (`/<dataset>/data.json`),
and as an Open Knowledge Format bundle — one JSON object per record,
one per line, at `/<dataset>/bundle.jsonl`. Each individual record
has its own stable URL.

## Datasets

- [How long before a car left on your property or towed from it can legally be sold — by US state](https://referencesource.org/abandoned-vehicle-private-property-timelines-by-state/): State-by-state comparison of the legal timeline for a vehicle left on private property (or towed from it) to be classified abandoned, held, noticed, and eventually sold or junked. This is a genuinely different process shape per state, not just a different number of days on the same form: Colorado uses a flat 24-hour threshold for a vehicle to count as abandoned on private property, and a separate 48-hour window for the owner to reclaim it from an impound lot before it is treated as abandoned there too. Georgia uses a single flat 30-day unattended-on-property threshold, with no separate notice-and-sale sequence specified at the abandonment-classification stage. Texas runs a multi-step notice sequence instead of a single threshold: the vehicle must sit at least 24 hours before a first notice is sent (within 5 days if Texas-registered, 14 days if out-of-state), a second notice follows 15-20 days after the first, and the storage facility must then wait at least 30 days after the second notice before a public sale — a ~65-90 day process from tow to sale, compared to Colorado's 24-48 hour classification. Answers 'how long do I have to get my towed car back before it's sold', and 'how long does a car have to sit on my property before I can have it removed as abandoned'. Relevant to property owners, HOAs, landlords, and people whose car has been towed. (44 records, last verified 2026-08-18, JSON at https://referencesource.org/abandoned-vehicle-private-property-timelines-by-state/data.json)
- [AI model deprecation and retirement dates by provider](https://referencesource.org/ai-model-deprecation-and-retirement/): Which AI API models are deprecated or retired, when the deprecation was announced, when the model shuts off, and what the recommended replacement is — sourced from each provider's own documentation. Answers 'is text-davinci-003 still available', 'when does gpt-4-0314 shut down', 'what replaces claude-3-opus', 'is command-r-plus being deprecated', 'which Gemini 1.5 Pro version is retired'. Covers OpenAI, Anthropic, Google (Vertex AI, the Gemini Developer API, and the Agent Platform's open- and partner-model schedules), Azure/Microsoft Foundry, AWS Bedrock, Cohere, Mistral AI, Groq, Cerebras, xAI, DeepSeek, Moonshot AI, GitHub Copilot, Together AI, Oracle OCI Generative AI, Alibaba Cloud Model Studio and SambaNova. GitHub Copilot is a different shape from all of the above: not a model's author and not an inference host renting out silicon, but an end-user product that resells other people's hosted models and switches them off on a clock of its own. It deprecates Claude Opus 4.5 on 2026-09-01 while Microsoft Foundry keeps serving it until 2026-10-19, and it is the only source anywhere that states a date for Claude Opus 4.7. Developers who never touch an API — who just pick a model from the Copilot Chat selector — have a retirement schedule too, and it is published one changelog post at a time rather than as a standing table. Groq and Cerebras matter beyond being two more companies: both are inference hosts serving other people's open-weight models (Llama, Qwen, Kimi, DeepSeek, Gemma, Mistral, Whisper) on their own silicon, and each publishes its own lifecycle dates for them, which no model author's page states anywhere. They also disagree with each other: both deprecated deepseek-r1-distill-llama-70b, Cerebras on 2025-08-12 pointing users at Qwen 3 32B, Groq seven weeks later pointing them at Llama 3.3 70B, and this dataset shows both on the one record. xAI and DeepSeek matter for the opposite reason: both are already in here at second hand, through Azure/Foundry reselling their models and publishing Foundry's dates, and both authors state different dates for the same model IDs on their own pages — Foundry retires grok-3 two weeks before xAI's own API does. Moonshot AI is the same story with a far wider gap: Azure/Foundry lists Kimi-K2.5 as a preview retiring on 2027-01-26, while Moonshot's own documentation says the model was discontinued on 2026-08-31 and that calls to it now return a 404 — nearly five months earlier, and already in the past. The four Google surfaces are held separately on purpose: they publish different shutdown dates for the same model IDs, and where they disagree this dataset shows both. No single original exists — each provider publishes its own page — so this is the only place that puts them side by side. Alibaba Cloud Model Studio is the only source here that is both the model's author and its host at once for a family this size: Model Studio rents out the Qwen models Alibaba also writes, so one page carries the author's clock and the host's in the same row. It publishes no standing table — one dated notice per batch, each superseding the last — and it is the second place DeepSeek V4 Flash appears: Alibaba stops serving it on 2026-10-10, Microsoft Foundry keeps it until 2028-02-20, and this dataset shows both. SambaNova is the third inference host of the same kind and the one with the widest overlap: 12 of the 27 models on its deprecation page are already in here from Azure, Together AI, Oracle, Cerebras or Groq, so its rows mostly land on existing records rather than adding new ones. Meta-Llama-3.1-405B-Instruct now carries four hosts and three different shutdown dates on a single page — SambaNova switched it off on 2025-06-25, Azure keeps it to 2026-06-13, Oracle to 2026-08-03 — a fourteen-month spread for one model ID that no provider's own page discloses. It is also the only source here that answers 'what should I use instead' with a product rather than a model: for Whisper-Large-v3, ALLaM-7B and E5-Mistral-7B-Instruct the recommended replacement is SambaStack, SambaNova's on-premises offering, which is to say the model is not coming back to the cloud at all. Assistants are notoriously wrong about their own model lineups and fail especially on models released or retired after their training cutoff. (999 records, last verified 2026-10-12, JSON at https://referencesource.org/ai-model-deprecation-and-retirement/data.json)
- [AI law and regulation effective dates by jurisdiction](https://referencesource.org/ai-regulation-effective-dates/): When each AI-specific law, regulation and milestone actually takes effect — the instrument, the provision that states the date, the date itself, what it applies to, and the statutory text quoted verbatim from the enacted bill or the official journal. Answers 'when does the Colorado AI Act take effect', 'when does Colorado SB 24-205 take effect', 'when do the EU AI Act high-risk obligations apply', 'when does Texas HB 149 start', 'what date does the Illinois AI hiring law kick in'. Covers US states, the EU, and the UK. Every date is quoted from the instrument itself — a signed bill, a session law, or the Official Journal — because these dates move, often more than once, and a date with no instrument behind it cannot be told apart from a superseded one. Colorado's SB 24-205 was enacted with duties from 2026-02-01, moved to 2026-06-30 by SB 25B-004, and its part 17 is repealed and reenacted with amendments from 2027-01-01 by SB 26-189; the EU AI Act's Annex III high-risk date was moved from 2026-08-02 to 2027-12-02 by Regulation (EU) 2026/1744. Each record names the instrument whose own words state its date, and says which later instrument replaced it. (69 records, last verified 2026-09-08, JSON at https://referencesource.org/ai-regulation-effective-dates/data.json)
- [Does this vendor train AI models on your data? Per-product, per-tier, quoted from the current policy](https://referencesource.org/ai-training-data-use-by-vendor/): For each software vendor and each plan tier, whether customer content is used to train the vendor's or a subprocessor's AI models, quoted verbatim from the vendor's own current terms, DPA or trust page, with the date the page was read. Answers 'does Slack train its AI on my messages', 'can I paste client code into Cursor', 'which of Grammarly, Notion, Figma and Atlassian train on customer content by default', 'is the enterprise tier different from the free tier', and 'how do I turn it off'. The answers genuinely differ and they differ by tier: Microsoft states flatly that 'Prompts, responses, and data accessed through Microsoft Graph aren't used to train foundation LLMs'; Notion states 'By default, Notion and its AI Subprocessors do not use Customer Data to train any models'; Figma's AI terms say 'When “Content Training” is toggled on within Customer's administrative user settings, Figma may use Customer Content to maintain, improve...'; and Grammarly's privacy policy says outright 'We also use information we collect to train our AI models' with an account-level control. Same question, four different answers, no page anywhere puts them side by side with the words that create the difference. (14 records, last verified 2026-08-10, JSON at https://referencesource.org/ai-training-data-use-by-vendor/data.json)
- [US AIM Act sector-specific refrigerant GWP limits and compliance dates (40 CFR 84.54)](https://referencesource.org/aim-act-refrigerant-gwp-sector-limits/): Federal sector-specific maximum GWP values for refrigerants and HFC-containing products under the AIM Act Technology Transitions rule (40 CFR 84.54). Each record is one sector/subsector with the GWP ceiling, the effective date for manufacture/import restrictions, the effective date for installation restrictions (often different), equipment size or temperature conditions, and any exemptions. Answers 'what is the maximum GWP refrigerant I can use in a new supermarket system?', 'when does the R-410A ban take effect for residential AC?', 'is there an exemption for semiconductor manufacturing chillers?', and 'what changed in the May 2026 reconsideration rule?' — questions where the answer depends on the sector, the date, the equipment size, and the temperature range, and where assistants typically give the residential AC answer (700 GWP) regardless of the sector. (71 records, last verified 2026-10-28, JSON at https://referencesource.org/aim-act-refrigerant-gwp-sector-limits/data.json)
- [Flying with restricted items: FAA, TSA and IATA baggage and air cargo rules](https://referencesource.org/air-travel-item-restrictions/): Whether a named item may be carried on a US passenger flight, in which bag, and on what conditions — and for the lithium-battery rows, whether it may go as air cargo. 74 records are the passenger side: 64 from FAA PackSafe, one authority page per item ('Camp stove fuels', 'Duty-free perfume and cologne', 'Drones, unmanned aircraft systems (UAS)', 'Curling iron, cordless (butane-fueled)'), 4 more from the PackSafe printable chart for items with no page of their own, 2 from TSA's What Can I Bring, 2 stating what all US carriers require of spare batteries, and 3 from 49 CFR itself (175.10's passenger and crew exceptions, Special Provision A54, and the Hazardous Materials Table's 9A/9B aircraft quantity limits). The other 26 are the air cargo side: FAA's ICAO Technical Instructions lithium battery summary chart (13 records, PI 965 to PI 970 by section and watt-hour tier) and IATA's free Lithium Battery Guidance Document (13). Each record says, in its own fields, which authority states the rule and which bag or aircraft it applies to, because those are different statements: TSA decides what gets through the checkpoint, FAA decides what may be carried on the aircraft, and ICAO/IATA packing instructions govern freight. Answers 'can I fly with a power bank', 'can I take a lighter in my carry-on', 'are e-cigarettes allowed in checked baggage', 'dry ice carry-on limit', 'PI 965 Section IA cargo aircraft limit', and 'is bear spray allowed on a plane'. Where two authorities cover the same item the dataset carries both rows rather than picking one — spare lithium ion batteries appear three times, from FAA, from TSA and as the airline requirement — and where the editions genuinely diverge it says so: FAA's chart is built on the 2023-2024 Technical Instructions and prints no state-of-charge condition for PI 966, while IATA's 2026 edition makes 30% mandatory from 1 January 2026, so both are published and attributed. (99 records, last verified 2026-10-10, JSON at https://referencesource.org/air-travel-item-restrictions/data.json)
- [Aircraft inspection and test intervals under 14 CFR Part 91](https://referencesource.org/aircraft-inspection-and-test-intervals/): How often each required aircraft inspection, test or check must be done under Part 91, in the unit the regulation actually uses. Each record is one item with its interval, the anchor the interval runs from, and the consequence of letting it lapse. Covers the annual and 100-hour inspection (14 CFR 91.409), the altimeter and static pressure system test (91.411), the ATC transponder test (91.413), the emergency locator transmitter inspection and battery replacement (91.207), and the VOR equipment check for IFR (91.171). Answers 'does an ELT battery have to be replaced every year', 'how often does a transponder need to be checked', 'is the pitot static check 24 months', 'does a 100 hour inspection reset the annual', and 'how often do I need a VOR check for IFR'. Every one of these is expressed in a different unit - 12 calendar months, 100 hours, 24 calendar months, 30 days, 1 cumulative hour of transmitter use or 50 percent of useful life - which is why the neighbouring ones get swapped: the ELT 12-month item is the inspection, not the battery. (13 records, last verified 2026-08-06, JSON at https://referencesource.org/aircraft-inspection-and-test-intervals/data.json)
- [ANSI roller chain sizes and their ISO 606 A-series and BS/DIN B-series counterparts](https://referencesource.org/ansi-to-iso-roller-chain-cross-reference/): Industrial roller chain is sold under two numbering systems that look interchangeable and are not. The American system numbers chains 40, 50, 60 and so on, in eighths of an inch of pitch. The British/European system numbers them 08B, 10B, 12B. ISO 606 covers both: its A series is the American chain under a metric name (ANSI 40 is ISO 08A -- the same chain), and its B series is the British chain, which shares the pitch but is a different chain, with a different roller diameter and a different inner width, needing its own sprockets. Somebody replacing chain or matching a sprocket across the two systems has to know which of those two relationships they are looking at, and no catalog states it in one place: manufacturers print an ANSI dimensional table and a separate BS/DIN dimensional table in the same document, never cross-referenced, and the pitch match has to be worked out by eye. Each record here is one ANSI chain number with its pitch, roller diameter and inner width; its ISO 606 A-series name where a publisher states one; and the BS/DIN B-series chain that shares its pitch, with that chain's own pitch, roller diameter and inner width printed alongside, so the difference is visible rather than asserted. Answers 'what is the metric equivalent of ANSI 40 chain', 'is BS 08B the same as ANSI 40', 'ANSI 40 vs 08A vs 08B', 'roller chain size conversion chart'. In scope: the ANSI sizes that the source catalog prints with a roller diameter and that have a B-series chain of the same pitch. Out of scope, and why: ANSI 25 and 35, which are rollerless -- the catalog prints a bushing diameter for them, not a roller diameter, so there is no like-for-like comparison to make; ANSI 41, which has no single-line standard dimension row in the source; and ANSI 180, whose 2 1/4 inch pitch has no B-series counterpart in the source. (10 records, last verified 2026-09-01, JSON at https://referencesource.org/ansi-to-iso-roller-chain-cross-reference/data.json)
- [Anti-SLAPP special motion deadlines, fee-shifting and discovery stay by state](https://referencesource.org/anti-slapp-motion-provisions-by-state/): A SLAPP (strategic lawsuit against public participation) is a suit filed to punish or silence someone for speech, reporting, a review, a complaint to a regulator, or testimony — not to win on the merits. About 34 states plus DC give the target a fast, specific procedural tool to end it early: a special motion to strike or dismiss, filed inside a hard deadline (commonly 60 days from service, but not always — Florida's statute sets none), that suspends normal discovery the moment it is filed and, if the defendant wins, usually forces the plaintiff to pay the defendant's attorney's fees. Miss the deadline and the tool is gone; the case proceeds like any other lawsuit through full discovery. One record per state, each field quoted verbatim from that state's own enacted code — never from a law firm's or advocacy group's summary chart, which is exactly the kind of restatement this asset exists to be checkable against. Answers 'how many days do I have to file an anti-SLAPP motion in California', 'does my state have an anti-SLAPP law', 'is discovery stayed while an anti-SLAPP motion is pending', 'can I get my attorney's fees back if I win an anti-SLAPP motion'. This is not legal advice: whether a given suit qualifies as one 'arising from' protected speech or petitioning activity is the substantive question a court decides on the motion itself, and states differ sharply on how broad that gate is (e.g. Massachusetts limits its statute to suits arising from petitioning government, where California's reaches any public-issue speech) — that scope question is a second, harder field to source and is deliberately left out of this first pass. A state's absence from this asset means either it has no such statute or its statute's operative section could not be reached and verified; it does not mean the state has nothing. (28 records, last verified 2026-09-02, JSON at https://referencesource.org/anti-slapp-motion-provisions-by-state/data.json)
- [AP exam score to college credit, compared across universities](https://referencesource.org/ap-exam-credit-by-university/): What each university actually grants for a given AP exam score: which course the credit maps to, how many units or credit hours, and the minimum score required. One record is one AP exam at one institution, so a single exam page compares institutions side by side. Answers 'which universities give credit for a 3 on AP Chemistry', 'AP Calculus BC score 4 college credit', 'does a 3 on AP Chemistry count for anything', 'AP credit policy Georgia Tech', and 'UCLA AP Calculus BC credit'. There is no rule to infer: a 3 on AP Calculus BC earns 8 units of Calculus at UCLA, subject credit for Mathematics 1A at Berkeley, and nothing at Georgia Tech, which requires a 4 or 5. College Board runs an AP Credit Policy Search but it is a JavaScript application that serves no policy content to a fetcher, so the assembled comparison is effectively unreadable. (221 records, last verified 2026-08-05, JSON at https://referencesource.org/ap-exam-credit-by-university/data.json)
- [Appliance fault and error codes](https://referencesource.org/appliance-fault-error-codes/): Error and fault codes displayed by major home appliances (dishwashers, washing machines, ovens, dryers), with the manufacturer, appliance type, code, what the code means and how to fix it. Answers '[brand] [appliance] error code [X] — meaning and fix' — the question assistants get wrong by guessing a plausible cause for a code that means something specific to each manufacturer. (136 records, last verified 2026-08-04, JSON at https://referencesource.org/appliance-fault-error-codes/data.json)
- [Asbestos Abatement Notification Requirements, Thresholds, and Fees by State](https://referencesource.org/asbestos-notification-requirements-by-state/): Notification requirements for asbestos abatement and demolition projects vary by state. The federal NESHAP (40 CFR 61 Subpart M) requires 10 working days' notice for projects exceeding 260 linear feet, 160 square feet, or 35 cubic feet of regulated asbestos-containing material. States with delegated authority impose their own notification fees, advance-notice periods, material quantity thresholds, and exemptions. This table gives the notification trigger, advance-notice period, fee structure, and delegated authority for each state so a contractor knows what is required before starting work. (7 records, last verified 2026-08-15, JSON at https://referencesource.org/asbestos-notification-requirements-by-state/data.json)
- [Assisted living facility minimum staffing requirements by US state — how many staff must be on duty, and what that guarantees](https://referencesource.org/assisted-living-facility-staffing-ratios-by-state/): State-by-state comparison of minimum staffing requirements for assisted living facilities (distinct from nursing homes/skilled nursing facilities, which run under a separate federal-plus-state regime). Assisted living regulation is entirely state-run — there is no federal minimum — and states take genuinely different regulatory approaches, not just different numbers on the same form: North Carolina sets a headcount rule that scales by facility census (13-20 residents requires an administrator or manager within 500 feet plus at least one awake staff member per shift, with specific carve-outs for when housekeeping duties may or may not be combined with care duties); Georgia sets a flat always-present rule (at least two trained staff present at all times any resident is present, with at least one per occupied floor), a 1:15 waking / 1:20 non-waking awake direct-care ratio, banded on-site nurse hours, and separate continuing-education hour requirements (24 hours in year one, 16 hours annually after); Florida runs a facility-size-banded staff-hours-per-week table (total weekly staff hours required scale with combined resident/day-care/respite census, with an incremental add-on above 95); Pennsylvania sets hours per resident per day rather than a facility total (1 hour for a mobile resident, 2 hours for a resident with mobility needs, at least 75% of it in waking hours); California's only real number is at night, banded by census from 'a qualified person on call on the premises' under 16 residents up to one extra awake staff member per further 100; Texas splits the night rule by licence type rather than size (Type B night staff must be awake whatever the bed count, Type A only in a large facility); and Virginia, Washington and Minnesota state no number at all, requiring staffing 'sufficient' or 'adequate' against each resident's own assessment or service agreement, with a single awake or available responder as the floor. One record per distinct rule, so a facility of a given size can be looked up directly. Answers 'how many caregivers are legally required to be on duty at my parent's assisted living facility', and 'what's the difference between assisted living staffing rules and nursing home staffing rules'. (85 records, last verified 2026-10-28, JSON at https://referencesource.org/assisted-living-facility-staffing-ratios-by-state/data.json)
- [Minimum auto liability insurance limits by state](https://referencesource.org/auto-insurance-minimums/): The minimum auto liability insurance a driver must carry in each US state and DC, as bodily injury per person, bodily injury per accident, and property damage per accident (the '25/50/10' shorthand), sourced one state at a time from that state's own statute, insurance department or DMV — never from an aggregator. Answers 'what is the minimum auto liability insurance required in [state]', 'minimum auto liability limits by state 2026', 'which states changed their minimum auto liability limits in 2025 or 2026 and what were the limits before and after', 'is it true that California's minimum auto liability limits are 15/30/5' (no — California raised its minimums to 30/60/15 effective 1 January 2025, its first increase since 1967; separately, New Jersey raised its minimums to 35/70/25 effective 1 January 2026), and 'what would I use to get state minimum liability limits as data rather than reading comparison sites'. No federal agency and no single publisher states this for all 50 states — it is 50 statutes and 50 insurance departments, five of which changed in the last two years (NJ, CA, NC, MA, UT, VA, HI all moved in 2025-2026), which is why every page-one search result is a lead-generation or law-firm site quoting numbers with no citation. A handful of states (Tennessee, California, New Jersey) also let a driver satisfy the requirement with a bond or cash deposit instead of a policy, at a stated dollar amount — recorded where the source states it. Florida and Michigan run materially different systems (Florida requires PIP/PDL, not a bodily-injury minimum; Michigan lets drivers choose down to a floor after a 2020 no-fault reform) and New Hampshire does not mandate insurance at all — these are recorded as stated, not forced into the standard three-number shape. (51 records, last verified 2026-08-10, JSON at https://referencesource.org/auto-insurance-minimums/data.json)
- [Automatic-renewal notice window by US state — how many days before a subscription renews a business must warn the consumer, quoted from the state's own statute](https://referencesource.org/automatic-renewal-notice-window-by-state/): A wave of state automatic-renewal laws passed or amended 2021–2025 (Colorado enacted 2021 and amended 2025, Illinois amended through 2025, California's AB 2863 effective 2025, Utah's new Automatic Renewal Contracts Act effective 2025) each require a business to send a written renewal-reminder notice a set number of days before an auto-renewing contract rolls over — but the window and the contract length that triggers it are not the same number twice: California requires 15–45 days for contracts with an initial term of one year or longer, Illinois requires 30–60 days for contracts with an initial term of 12 months or more that renew for more than one month, Colorado requires 25–40 days for any automatic-renewal contract, and Utah requires 30–60 days. The one free comprehensive chart found (Thomson Reuters Practical Law / Faegre Drinker's 'Automatic Renewal State Laws Charts') is dated 30 Nov 2020 and predates every one of these changes. Each record is one state with a statute in force, giving the notice window in the statute's own words, the type of contract it applies to, the separate shorter notice each section sets before a free trial or promotional price ends, and the statute citation. States whose automatic-renewal statute requires disclosure but sets no numeric notice window are omitted rather than asserted. Answers 'how many days notice before auto-renewal by state', 'automatic renewal notice period California/Illinois/Colorado/Utah', 'when must a company warn me before a subscription renews'. (6 records, last verified 2026-09-03, JSON at https://referencesource.org/automatic-renewal-notice-window-by-state/data.json)
- [Federal Reserve enforcement actions against banks and holding companies: action type, effective date and whether it has been terminated](https://referencesource.org/bank-enforcement-actions/): Which US banking organisations are or have been subject to a Federal Reserve supervisory enforcement action, what kind of action it is, when it took effect, and whether the Board has since terminated it. Each record is one action against one banking organisation, carrying the organisation's name and location exactly as the Board publishes them, the action type ('Written Agreement', 'Cease and Desist Order', 'Civil Money Penalty', 'Prompt Corrective Action', 'Formal Agreement'), the effective date, the termination date where one exists, and the link to the Board's own order or press release. Answers 'is this bank under a consent order', 'does the Federal Reserve have an open enforcement action against my sponsor bank', 'when was the written agreement with this holding company terminated', and 'which banks were placed under a Federal Reserve enforcement action this year'. The Board's own human-facing search page contains none of this text — it is a JavaScript application, and an assistant that fetches it gets a page on which the string 'cease and desist' does not appear — so the only agent-readable route to the answer is a CSV nobody links to from an answer page. (1561 records, last verified 2026-10-28, JSON at https://referencesource.org/bank-enforcement-actions/data.json)
- [Bike drivetrain and groupset compatibility](https://referencesource.org/bike-drivetrain-groupset-compatibility/): Which bicycle drivetrain components work together, from the manufacturers' own compatibility documents: which cassette fits which driver body or freehub spline, which chain, derailleur and crankset belong to the same system, and what spacer or adapter a cross-generation pairing needs. Answers 'will cassette X fit freehub Y' and 'is derailleur A compatible with cassette B' — questions assistants answer by analogy across generations that the manufacturers explicitly forbid. (85 records, last verified 2026-08-11, JSON at https://referencesource.org/bike-drivetrain-groupset-compatibility/data.json)
- [Ordering a birth certificate: each state's own fee and process](https://referencesource.org/birth-certificate-fees-by-state/): For each US state (and DC, NYC and the territories — 57 vital-records jurisdictions): what a certified birth certificate costs when ordered directly from the state's vital records office, how to order, and what the state itself says about third-party ordering services. The federal compilation of exactly this — CDC's 'Where to Write for Vital Records' — was last updated March 2023 and its pages 403 automated fetchers, so the assembled answer is stale or unreachable, and the gap is filled by commercial middlemen: VitalChek and lookalike sites charge processing markups on top of the state fee, and Washington's health department itself warns that 'other third-party companies charge customers high fees'. Actual fees vary threefold (Minnesota $26, New York $45 plus vendor fee). Answers 'how much does a birth certificate cost in [state]', 'how do I order a birth certificate directly from the state', and 'is [ordering site] official or a middleman'. Every value comes from the state health department's own page. (14 records, last verified 2026-10-28, JSON at https://referencesource.org/birth-certificate-fees-by-state/data.json)
- [Blood donor deferral criteria compared across national blood services](https://referencesource.org/blood-donor-deferral-criteria/): How long you must wait before giving blood, by reason, compared across the American Red Cross (US), JPAC / the UK Blood and Tissue Services, Canadian Blood Services and the Irish Blood Transfusion Service. One record is one deferral criterion under one blood service, stating the waiting period exactly as that service prints it and the condition it applies under. Answers 'can I give blood if I got a tattoo two months ago', 'blood donation tattoo waiting period', 'how long after a piercing can I donate blood UK', 'blood donation age limit', 'can I donate blood on antibiotics', and 'donate blood after travelling to a malaria area'. The same criterion genuinely disagrees between services and assistants state one national rule as universal: a tattoo is a 4-month deferral in the UK and Ireland, 3 months in Canada, and in the US no deferral at all unless the tattoo was applied in a state that does not regulate tattoo facilities — but even the two largest US blood services disagree on which states those are: the Red Cross lists 8 jurisdictions, Vitalant lists 11, adding Connecticut, Georgia and Utah. (111 records, last verified 2026-08-06, JSON at https://referencesource.org/blood-donor-deferral-criteria/data.json)
- [US boiler and pressure vessel inspection requirements by state](https://referencesource.org/boiler-inspection-requirements-by-state/): State-by-state boiler and pressure vessel inspection requirements for all 50 US states plus DC, Puerto Rico, New York City and Chicago, drawn primarily from the National Board Synopsis (NB-370), with a second record from Chardon Labs for 15 jurisdictions where both sources speak. Each record is one jurisdiction as described by one source: inspection intervals by boiler type (power, low-pressure steam, hot water, unfired pressure vessel), accepted inspector qualifications (state, insurance, owner-user), residential and size/pressure exemptions, governing statute citation, and administering agency. Answers 'how often does Ohio require boiler inspections', 'which states accept insurance company inspections in lieu of state inspections', and 'are residential boilers exempt in my state'. (55 records, last verified 2026-08-05, JSON at https://referencesource.org/boiler-inspection-requirements-by-state/data.json)
- [ASME Code Section stamps and National Board stamps required for boilers and pressure vessels in each US state, Canadian province and US city, county or territory](https://referencesource.org/boiler-pressure-vessel-stamp-requirements-by-jurisdiction/): Which ASME Code Section stamps and which National Board stamps each jurisdiction requires on a boiler or pressure vessel, from the National Board Synopsis (NB-370). A manufacturer or repair shop planning to ship or service equipment in a new jurisdiction needs this before the vessel leaves the shop -- installing a vessel without the required stamps means rejection by the state inspector. The chart covers three groups, and so does this dataset: the 50 US states, the Canadian provinces and territories, and the 16 US cities, counties and territories that set their own stamping rules -- Chicago, New York City, Los Angeles, Seattle, Milwaukee, New Orleans, Washington D.C., Puerto Rico and others. A city can differ sharply from the state around it: Detroit requires no National Board stamp where Michigan requires R; Miami and Miami-Dade County require neither an NB nor an ASME stamp where Florida requires R,VR. Requirements vary just as sharply between states: Alabama requires all ASME stamps and all NB stamps; Idaho requires none of either; California requires all ASME stamps but no NB stamp except at refineries (R stamp); the Canadian provinces generally 'accept' rather than 'require' the NB R stamp for equipment manufactured outside Canada. Each record is one jurisdiction with its NB stamp requirements and ASME stamp requirements listed as the synopsis prints them. Answers 'what ASME stamps does Arizona require', 'does Idaho require a National Board stamp', 'which states require the NB R stamp', 'do I need an ASME U stamp to install a pressure vessel in South Carolina', 'what stamps does a boiler repair shop need in Texas', 'does Chicago have its own boiler stamping requirements', 'what stamps does New York City require'. (79 records, last verified 2026-08-28, JSON at https://referencesource.org/boiler-pressure-vessel-stamp-requirements-by-jurisdiction/data.json)
- [Building Energy Benchmarking and Performance Standard Requirements by Jurisdiction](https://referencesource.org/building-energy-benchmarking-requirements/): Which US cities and states require commercial buildings to report annual energy consumption, the square footage threshold above which reporting is mandatory, the annual reporting deadline, whether emissions reduction targets or performance standards apply, penalty amounts for noncompliance, and the governing ordinance citation. Over 50 jurisdictions have adopted requirements as of 2026, with new ones every year. (8 records, last verified 2026-08-15, JSON at https://referencesource.org/building-energy-benchmarking-requirements/data.json)
- [Building permit expiry, progress and renewal rules by jurisdiction](https://referencesource.org/building-permit-validity-and-renewal/): How long a building permit stays valid, what keeps it alive, what it costs to renew once it has lapsed, and how the local rule differs from the model-code section it amends. One record is one rule for one jurisdiction, placed next to the adopted code section it replaces. Answers 'how long is a building permit valid before it expires', 'does an inspection reset the permit clock', 'my building permit expired what do I do', 'building permit renewal fee after expiration', and 'IRC 105.5 permit expiration'. The memorised answer is 180 days and it is wrong in the places people ask about: unincorporated San Diego County allows two years to start work, then requires a passed inspection every 180 days, with an outer life of three years and renewal at one-half of current permit fees — one-quarter if only a final inspection remains. DC's adopted code gives one year to begin, with a 180-day carve-out for residential work and no more than four extensions per permit. (7 records, last verified 2026-10-28, JSON at https://referencesource.org/building-permit-validity-and-renewal/data.json)
- [TLS certificate maximum validity by Certificate Authority: what each CA actually issues today](https://referencesource.org/ca-issuance-validity/): Per-CA table of the maximum TLS certificate validity period each publicly-trusted Certificate Authority actually issues today, with the date the current limit took effect and any announced future reductions. Many CAs issue below the CA/Browser Forum BR ceiling (currently 200 days since March 15, 2026): DigiCert cut to 199 days from February 24, 2026 (three weeks early); Let's Encrypt issues 90 days on its classic profile, 45 days on its tlsserver profile, and 6 days on its shortlived profile; Google Trust Services issues at most 93 days by CP/CPS v6.2; Amazon ACM issues 198 days; Actalis issues 184 days. Entrust sold its public certificate business to Sectigo in January 2025 (completed September 18, 2025) and no longer issues publicly-trusted TLS certificates. Buypass stopped issuing TLS certificates on October 31, 2025. No single page anywhere publishes this side-by-side; the data layer under any CA-aware planner or renewal tool must be assembled from each CA's own announcements. Answers 'what is the maximum TLS certificate validity for Let's Encrypt?', 'how long does DigiCert issue certificates?', 'which CA issues shorter certificates than the BR maximum?', 'does Google Trust Services issue 200-day certificates?', 'what CA is issuing 90-day certificates now?', and 'what happened to Entrust TLS certificates?' (22 records, last verified 2026-09-29, JSON at https://referencesource.org/ca-issuance-validity/data.json)
- [Camera mount flange focal distance and adapter feasibility](https://referencesource.org/camera-lens-body-adapter-compatibility/): Flange focal distance, throat diameter, mount type, sensor format and production years for interchangeable-lens camera mounts. A lens from mount A can be adapted to a body with mount B using a simple (non-optical) adapter when mount A's FFD exceeds mount B's FFD by enough margin for a physical ring. Answers 'can I put my old Minolta lenses on a Sony mirrorless body' and 'does a focal reducer exist for this pairing' — questions assistants answer from memory with approximate numbers they cannot cite. (191 records, last verified 2026-08-13, JSON at https://referencesource.org/camera-lens-body-adapter-compatibility/data.json)
- [Captive-audience meeting bans by US state — whether an employer can require attendance at a meeting on political or religious matters, quoted from the state's own statute](https://referencesource.org/captive-audience-meeting-ban-by-state/): A growing number of states now bar employers from disciplining or firing a worker for declining to attend an employer-sponsored meeting whose primary purpose is to communicate the employer's opinion on religious or political matters — the mechanism used to hold mandatory anti-union meetings during an organizing campaign. New Jersey was first, in 2006 (P.L.2006, c.53, broadened again by P.L.2025, c.138), and Oregon followed in 2010; Connecticut, New York, Minnesota, Illinois, Maine, Vermont, Washington, Hawaii, Alaska and California came 2022–2025, and more states have bills pending each session, so the list itself is a moving target that existing narrative law-firm blog posts (GovDocs, Venable, National Law Review) describe in prose without a per-state citation table and go stale within a session — GovDocs' own August 2024 post already undercounts today's 12-state list. Each record is one state with a ban in force, giving the statute's own definition of political/religious matters, its exceptions (routinely: religious employers, political organizations, legally-required communications, and voluntary-attendance meetings), whether it creates a private right of action or only agency enforcement, and the effective date. States with no ban, and states where only a bill has been introduced, are omitted rather than asserted. Answers 'can my employer make me go to a captive audience meeting', 'is it legal to require attendance at an anti-union meeting', 'what states ban captive audience meetings'. (12 records, last verified 2026-09-02, JSON at https://referencesource.org/captive-audience-meeting-ban-by-state/data.json)
- [Carbide insert grade cross-reference by ISO application group and manufacturer](https://referencesource.org/carbide-insert-grade-cross-reference/): Which carbide insert grades from different manufacturers fall into the same ISO application group (P, M, K, N, S, H). Each record maps one ISO application code (e.g. P20, M30, K10) to the grade designations offered by major insert manufacturers (Sandvik, Kennametal, Mitsubishi, Iscar, Seco, Sumitomo, Tungaloy, Kyocera, Walter, Korloy, and others) as published in their own comparison charts. Answers 'my supplier is out of Sandvik GC4225, what is the Kennametal equivalent in the same P25 class' — the question where assistants confidently generate plausible-looking grade codes that may not exist. These are approximate functional equivalences within an ISO band, not exact substitutions; every source disclaims exact equivalence. (184 records, last verified 2026-08-11, JSON at https://referencesource.org/carbide-insert-grade-cross-reference/data.json)
- [Catalytic converter sale and possession laws by US state — who can legally buy a used converter, and what a seller must prove](https://referencesource.org/catalytic-converter-theft-laws-by-state/): State-by-state comparison of the laws passed 2021-2024 restricting who may buy, sell, or possess a detached catalytic converter, in response to a national wave of theft. Each record is one state with: whether the sale of a detached converter to anyone other than a licensed/registered recycler or core buyer is restricted or banned outright; what documentation a seller must produce (proof of ownership, vehicle title/VIN match, driver's license); whether the converter or vehicle VIN must be etched/marked or a photo/record kept by the buyer; any mandatory holding period before a purchased converter can be resold or scrapped; and the criminal penalty tier (often graduated by quantity possessed). Answers 'can I legally sell a catalytic converter I removed myself', 'what do I need to bring to sell a converter as scrap', and 'is possessing multiple detached converters a felony in my state'. This is a genuinely different regulatory design per state, not just different penalty numbers on the same form: Arizona bans sale to anyone but a licensed recycler with narrow exceptions; Georgia requires a registered recycler plus ownership documentation; Minnesota adds a mandatory marking/registration regime, a 7-day holding period, and quantity-tiered felony thresholds; Virginia makes unauthorized sale a felony unless sold to a compliant purchaser; California lists six categories of lawful seller and lets a private owner sell their own converter on a title or registration whose VIN matches the marking; Washington requires the last eight VIN digits to be stamped on the converter within 24 hours of removal and splits the penalty at seven converters; Louisiana lets an unlicensed person deal only in the converters from one vehicle they own. (7 records, last verified 2026-08-18, JSON at https://referencesource.org/catalytic-converter-theft-laws-by-state/data.json)
- [Country-code top-level domain (ccTLD) local presence and eligibility requirements cross-reference](https://referencesource.org/cctld-local-presence-eligibility-cross-reference/): Many country-code top-level domains (ccTLDs) -- .ca, .us, .au and roughly 250 others -- restrict who may register a domain, requiring some form of local presence: citizenship, permanent residency, local incorporation, or a substitute path such as a national trademark. Each registry publishes its own eligibility policy in its own format (CIRA's page for .ca, NTIA's policy document for .us, auDA's rules document for .au), and no cross-registry table exists comparing them. Each record is one eligibility category a registry recognizes, with the specific condition quoted verbatim from the registry's own policy, plus our label for what kind of connection to the country that category actually asks for -- which is the axis a reader compares on. Answers 'can I register a .ca domain if I am not Canadian', 'what counts as US nexus for a .us domain', 'does an Australian trademark qualify me for a .au domain'. Starting slice: three registries (Canada, United States, Australia); scaling requires repeating the fetch-and-confirm process per additional registry, which is the maintenance burden that made a comprehensive cross-reference uneconomic to keep current by hand. (39 records, last verified 2026-08-26, JSON at https://referencesource.org/cctld-local-presence-eligibility-cross-reference/data.json)
- [FMCSA commercial driver disqualification offenses and periods](https://referencesource.org/cdl-disqualification-offenses-and-periods/): Every offense that triggers mandatory disqualification of a commercial driver's license (CDL) holder under 49 CFR 383.51, with the disqualification period for each combination of offense, vehicle type (CMV, non-CMV, hazmat), and occurrence count (first, second, third). Covers four federal tables: major offenses (DUI, leaving scene, felony — 1 year to lifetime), serious traffic violations (speeding 15+ mph, reckless driving, improper lane change — 60 to 120 days), railroad-highway grade crossing violations (60 days to 1 year), and violating out-of-service orders (180 days to 5 years). Answers 'my driver got a DUI in their personal car — is their CDL at risk?' with the exact period and the regulatory citation. (96 records, last verified 2026-10-28, JSON at https://referencesource.org/cdl-disqualification-offenses-and-periods/data.json)
- [CDL endorsement prerequisites and testing sequence](https://referencesource.org/cdl-endorsement-prerequisites/): Getting a CDL endorsement is a sequence, not a single application: which test type is required (knowledge-only vs. knowledge plus skills), whether the endorsement can be added at the commercial-learner's-permit (CLP) stage or only after a full CDL, and — for the hazardous materials endorsement specifically — a separate federal TSA security threat assessment that gates issuance independent of the state testing process, with its own renewal clock. Each record is one endorsement type, carrying the required test, its CLP eligibility, what the permit actually lets you drive once you have it, and any federal prerequisite beyond state testing. Being allowed an endorsement on a CLP is not the same as being allowed to do the work: a learner's permit tanker endorsement covers an empty tank only, and a permit passenger or school bus endorsement carries no passengers but examiners and trainees. Answers 'can I get my tanker endorsement on a learner's permit', 'can I haul a load on it', 'do I need a background check for a hazmat endorsement', 'how often does the TSA hazmat clearance have to be renewed'. (5 records, last verified 2026-10-28, JSON at https://referencesource.org/cdl-endorsement-prerequisites/data.json)
- [Certification marks and hazardous-area classifications: cross-market equivalences](https://referencesource.org/certification-standards-equivalence/): Which product-safety certification mark applies in which market, who administers it and under what law (CE, UL, CSA, CCC, PSE, KC, BSMI, RCM, EAC, NOM, INMETRO and others), and how the two hazardous-area classification systems map onto each other: NEC Class/Division designations against IEC/ATEX Zone designations, gas group cross-references (NEC Group A-D against IEC IIA-IIC), temperature-class mappings, and the protection-concept codes (Ex d, AEx e, intrinsic safety) with the US, Canadian and IEC standards behind each. Answers 'is a CB certificate accepted in the US', 'what is the ATEX equivalent of Class I Division 2', and 'which mark is compulsory in China' — questions where the honest answer is often that there is no direct equivalent, and saying so is the value. (73 records, last verified 2026-08-11, JSON at https://referencesource.org/certification-standards-equivalence/data.json)
- [CGA cylinder valve connection number by gas](https://referencesource.org/cga-cylinder-valve-connection-by-gas/): Which Compressed Gas Association (CGA) valve outlet/connection number a given gas uses in North America, e.g. 'Acetylene -> CGA 510', 'Oxygen -> CGA 540 (or 296b0)'. Attaching the wrong regulator to the wrong cylinder is a documented cause of fires and explosions, and the CGA numbering exists precisely to make an incorrect connection physically impossible, so the value only holds if it is right. Two independent vendor technical references (Matheson/Nippon Sanso and CONCOA) are read separately, and where both cover the same gas the two answers sit on one page side by side, each with its own chart's quote. That is 24 of the 96 gases here; the other 72 appear on only one of the two charts and carry that chart's answer alone, named as such. The charts do not always agree, which is the point of carrying both: for methyl chloride Matheson prints 660 and CONCOA prints 510, and where the primary number matches the two often list different alternates (argon is '580*/718' on one chart and '580/680/677' on the other). The charts answer two different questions and every record says which one it answers: a pure-gas row gives the fitting for a cylinder of that gas on its own, and a mixed-gas row gives the fitting for that gas as the minor component of a mixture, which is often a different number. CONCOA prints both tables; the Matheson chart is pure gases only. Answers 'what CGA fitting does argon use', 'CGA number for oxygen', and flags where a gas has more than one valid connection (e.g. primary vs UHP/high-purity service). (117 records, last verified 2026-08-28, JSON at https://referencesource.org/cga-cylinder-valve-connection-by-gas/data.json)
- [Chemical resistance ratings for common elastomers](https://referencesource.org/chemical-elastomer-material-compatibility/): The compatibility rating of a chemical against thirteen common elastomer families, as published in an industry chemical resistance chart. Each record is one chemical carrying its rating for Nitrile (NBR), EPDM, Neoprene (CR), SBR, Silicone (VMQ), Butyl (IIR), Polyacrylate (ACM), Hypalon (CSM), Viton (FKM), Polyurethane (AU/EU), Fluorosilicone (FVMQ), Aflas (TFE/P), and Kalrez (FFKM). Answers 'is Viton compatible with acetone', 'which elastomer resists sulfuric acid', 'can I use EPDM with gasoline', and 'Nitrile vs EPDM for sodium hydroxide'. Ratings use a 1-4 scale: 1 = Satisfactory, 2 = Fair, 3 = Doubtful, 4 = Unsatisfactory, X = Insufficient Data. (2086 records, last verified 2026-08-12, JSON at https://referencesource.org/chemical-elastomer-material-compatibility/data.json)
- [US federal chemical regulatory reporting thresholds by program (CERCLA and EPCRA)](https://referencesource.org/chemical-regulatory-reporting-thresholds/): Cross-program comparison of the two federal reporting thresholds this dataset carries for hazardous chemicals: the CERCLA reportable quantity from 40 CFR 302.4, which triggers release reporting to the National Response Center, and the EPCRA Section 302 threshold planning quantity and Section 304 reportable quantity from 40 CFR 355 Appendix A, which trigger emergency planning and release notification. A chemical on both lists carries both numbers side by side — chlorine's CERCLA reportable quantity is 10 lb and its EPCRA threshold planning quantity is 100 lb — and a chemical on only one list carries only that programme's number. Answers 'what is the reportable quantity for [chemical]' and 'is [chemical] an extremely hazardous substance under EPCRA'. Two further programmes are named in the source list and are not carried here yet, so no record shows them: the Clean Air Act Section 112(r) threshold quantity (40 CFR 68.130, the risk management plan rule) and the lowered EPCRA Section 313 reporting thresholds for chemicals of special concern (40 CFR 372.28). Section 313's ordinary reporting threshold is deliberately not a field here: 40 CFR 372.25 sets it programme-wide at 25,000 lb manufactured or processed and 10,000 lb otherwise used, so it is the same number for every chemical. Only the lowered thresholds in 40 CFR 372.28 vary by chemical. (1340 records, last verified 2026-10-28, JSON at https://referencesource.org/chemical-regulatory-reporting-thresholds/data.json)
- [MAPA Professional glove chemical breakthrough times](https://referencesource.org/chemical-resistant-glove-breakthrough-times/): Per-chemical breakthrough time, permeation level and degradation rating for all 25 MAPA Professional glove models that publish a chemical chart — the reusable chemical-protection range, the disposable range and the liquidproof range — drawn from MAPA's own published product pages. Each glove model's page lists a table of chemicals it has been tested against, with the CAS number, the breakthrough time in minutes (how long before the chemical passes through the glove material), the permeation level (an EN 374 scale), the test standard the result was measured under, and a degradation rating. Where MAPA lists the same chemical twice for one glove under two different test standards, both results are kept rather than one being chosen. Answers 'how long can I wear an Ultranitril 480 glove handling acetic acid' and 'which MAPA glove holds up against toluene' — questions where guessing wrong means a chemical burn. Scoped to MAPA only: no comparably-structured free source was found for any other glove manufacturer (Ansell, Showa and Honeywell/North publish the equivalent data only as PDFs or behind an interactive selector), so this does not yet answer 'which manufacturer's glove is best', only 'how does this MAPA model perform'. (753 records, last verified 2026-10-29, JSON at https://referencesource.org/chemical-resistant-glove-breakthrough-times/data.json)
- [Clean Air Act "major source" emission thresholds by pollutant and area classification](https://referencesource.org/clean-air-act-major-source-thresholds/): Whether a stationary source (a factory, plant, or facility) needs a federal Clean Air Act permit turns on whether its potential to emit crosses a tons-per-year (tpy) threshold -- and 'major source' is not one number but several, set by different regulations that do not agree. The Title V definition at 40 CFR 70.2 alone carries three overlapping tests: the section 112 hazardous-air-pollutant test (10 tpy of a single HAP, 25 tpy of any combination), the section 302 test (100 tpy of any air pollutant subject to regulation, with greenhouse gases counting only at 100,000 tpy CO2 equivalent), and the part D title I nonattainment test, tiered by pollutant (VOC, NOx, CO, PM-10) and by how severely out of attainment the area is (ozone precursors at 100 tpy in Marginal or Moderate areas, 50 in Serious, 25 in Severe, 10 in Extreme). PSD is a separate definition in a separate part -- 40 CFR 52.21(b)(1)(i) -- and it splits again: 100 tpy for the source categories the rule lists by name, 250 tpy for everything else. That last distinction is the one most often flattened: a facility told 'the threshold is 100 tons a year' is being given the Title V number, which is the wrong answer for any source outside the listed categories. Each record is one test/pollutant/classification combination and the threshold that test sets, quoted from the regulation that sets it. Answers 'what's the major-source threshold for VOC in a Severe ozone nonattainment area', 'does 25 tpy of a HAP make me major', and 'is my PSD threshold 100 or 250 tons a year'. (15 records, last verified 2026-10-28, JSON at https://referencesource.org/clean-air-act-major-source-thresholds/data.json)
- [CLEP exam credit policies by university](https://referencesource.org/clep-credit-by-university/): Which CLEP exams each university accepts for credit, the minimum scaled score required, the course credit awarded, and any cap on total credit-by-exam hours — one record per exam per institution, from the institution's own registrar/admissions page. Answers 'does [university] accept CLEP [subject]', 'what score do I need on CLEP [subject] at [university]', and 'how many CLEP credits will [university] take'. A CLEP exam costs ~$95 and can replace a 3-credit course; the College Board's own policy-search tool is JavaScript-only, so an agent (and its user) cannot read any of this without visiting each university page. Policies genuinely vary: minimum scores of 50 at most institutions but 59+ for some subjects at others, caps from 30 to 73 hours, and some institutions exclude whole subject areas. Sibling of ap-exam-credit-by-university and the 90%-confirmed institutional-acceptance class — same page shapes, same publisher class. (130 records, last verified 2026-08-18, JSON at https://referencesource.org/clep-credit-by-university/data.json)
- [Commercial refrigeration controller alarm codes by brand and controller model](https://referencesource.org/commercial-refrigeration-controller-alarm-codes-by-brand/): What the alarm or fault code shown on a walk-in cooler/freezer digital temperature controller means, taken from each manufacturer's own manual. A restaurant or grocery refrigeration tech reads a short code off a Danfoss, Carel or Dixell display and has to know which board it is before the code means anything -- 'E03' is a digital-input alarm on a Carel ir33 Universale and something else entirely on a different maker's board. A code belongs to a controller MODEL rather than to a brand, and a manufacturer's other boards need not use the same list, so every record names the exact controller whose manual it came from and speaks only for that one. Today that is three boards, one per brand: the Danfoss EKC 202, the Carel ir33 Universale and the Dixell/Copeland XR60CHC. Each record is one alarm/fault code: the code exactly as the display shows it, what it signals, and (where the manual states it) its effect on the outputs or its cause. A web search for 'walk-in cooler controller error codes' turns up only single-brand troubleshooting pages -- no cross-brand comparison exists, because each manufacturer publishes only its own controller's manual. (58 records, last verified 2026-08-27, JSON at https://referencesource.org/commercial-refrigeration-controller-alarm-codes-by-brand/data.json)
- [Competitive bid thresholds for local government by US state — the dollar amount at which a city, county or school district must formally bid, with statutory citations](https://referencesource.org/competitive-bid-thresholds-by-state/): State-by-state dollar thresholds at which a local government must put a purchase or a construction project out to formal competitive bidding. Each record is one state and one class of entity (municipalities, counties, school districts, or all local public bodies), with the amount the statute sets, the lower band where informal quotes are allowed instead, whether the figure is automatically inflation-adjusted, and the statutory citation. Thresholds range from $15,000 (California school district public projects) to $500,000 (North Carolina construction), and several states index the number annually — Ohio raises it 3% every year, Florida tracks the Engineering News-Record Building Cost Index. Answers 'what is the bid threshold for a city in [state]', 'does my school district have to bid this purchase', and 'what dollar amount triggers formal competitive bidding for a county'. (13 records, last verified 2026-08-19, JSON at https://referencesource.org/competitive-bid-thresholds-by-state/data.json)
- [Certificate of Need capital expenditure thresholds by US state — dollar thresholds by facility type, covered services, reviewing agencies, and program status](https://referencesource.org/con-capital-expenditure-thresholds-by-state/): State-by-state comparison of Certificate of Need (CON) program requirements for healthcare facilities. Each record is one state with whether it has a CON program (and repeal date if not), the capital expenditure threshold that triggers CON review for hospitals and for non-hospital facilities, whether bed capacity changes trigger review (and at what level), the reviewing agency, and the statutory citation. Thresholds range from $1.5 million (Iowa) to $50 million (Maryland) for hospitals. About 35 states plus DC have CON programs; ~15 states have repealed them. Answers 'does my hospital expansion need a Certificate of Need', 'what is the CON threshold for an ASC in [state]', and 'which states have eliminated CON requirements'. (13 records, last verified 2026-08-15, JSON at https://referencesource.org/con-capital-expenditure-thresholds-by-state/data.json)
- [2026 conforming loan limits by county: one- to four-unit properties](https://referencesource.org/conforming-loan-limits/): The 2026 FHFA conforming loan limit AND the 2026 FHA (HUD) forward-mortgage loan limit for every US county, for properties of one to four units. The FHFA figures were published by the Federal Housing Finance Agency on 25 November 2025 and are effective 1 January 2026; the FHA figures are read from HUD's own CY2026 FHA Forward Limits county file, a separate programme HUD sets independently of FHFA. Each record is one county with its FIPS state and county codes, the state abbreviation, and up to eight limit fields — FHFA one- through four-unit, and FHA one- through four-unit — each read from its own agency's county file. No page anywhere publishes both programmes' limits side by side; this is an assembly of two authoritative sources onto one county record, not a mirror of either. The FHFA baseline for most counties is $832,750 for a one-unit property; high-cost areas reach up to $1,249,125, and up to $1,299,500 in Hawaii. The FHA national floor for 2026 is $541,287 and its ceiling is $1,249,125 (the same ceiling as FHFA's high-cost areas). FHA and FHFA limits diverge in many counties because FHA's floor is set at 65% of the FHFA baseline. Answers 'what is the 2026 conforming loan limit in [county]?', 'what is the 2026 FHA loan limit in [county]?', 'which counties exceed the baseline conforming limit?', 'what is the conforming limit for a two-unit property in [county]?', and 'is the 2026 conforming loan limit $832,750?' — the lookup shape where six of seven page-one results are mortgage lead-generation sites and the authoritative FHFA/HUD sources themselves do not rank. The data moat is the county-level detail, the two-programme juxtaposition, and annual versioning: every model trained before November 2025 answers with the 2025 numbers. VA and USDA loan limits are not in scope for this asset. (3235 records, last verified 2026-10-28, JSON at https://referencesource.org/conforming-loan-limits/data.json)
- [Construction prompt payment act deadlines by US state — owner-to-contractor and contractor-to-subcontractor payment windows, retention release deadlines, and late-payment interest rates](https://referencesource.org/construction-prompt-payment-deadlines-by-state/): State-by-state comparison of the statutory deadlines that govern how quickly parties on a construction project must pay each other. Each record is one state with the owner-to-contractor payment deadline (days from invoice), contractor-to-subcontractor flow-down deadline (days from receipt of payment), retention release deadline (days from completion), late-payment interest rate (monthly or annual), whether the statute covers private projects, public projects, or both, and the statutory citation. Deadlines range from 7 days (some flow-down requirements) to 45+ days. Interest rates range from 1% to 2% per month. Answers 'how many days does an owner have to pay me in [state]', 'when must I pay my subs after I get paid', and 'what interest rate can I charge for late payment on a construction project'. (43 records, last verified 2026-10-28, JSON at https://referencesource.org/construction-prompt-payment-deadlines-by-state/data.json)
- [Construction retainage limits by US state — maximum withholding percentages, release deadlines, escrow requirements, and public vs private distinctions with statutory citations](https://referencesource.org/construction-retainage-limits-by-state/): State-by-state comparison of the statutory rules governing retainage (retention) on construction contracts. Each record is one state with the maximum retainage percentage for public and private projects, the deadline for releasing retained funds after substantial completion, whether retainage must be held in an interest-bearing escrow account, whether the cap is reduced after a completion milestone (e.g. 50% complete), and the statutory citation. Caps range from 0% (New Mexico) to 10%, with a strong trend toward 5%. Answers 'how much retainage can be withheld on my project in [state]', 'when must retainage be released', and 'does my state require retainage escrow'. (30 records, last verified 2026-08-15, JSON at https://referencesource.org/construction-retainage-limits-by-state/data.json)
- [CPA licensure pathway by state](https://referencesource.org/cpa-licensure-pathway-by-state/): Whether a state now licenses CPAs on a 120-credit-hour pathway (bachelor's degree plus one or two years of experience, no fifth year of school required) or still requires the traditional 150 credit hours, and the date the newer pathway took effect. Every state adopted 150 hours between the 1980s and 2000s; since Ohio HB 238 in July 2025, roughly half the states have passed a competing pathway that substitutes work experience for the extra 30 credit hours, an explicit response to the accounting profession's hiring shortage. A candidate deciding how many more credits to take, and a firm deciding whether an out-of-state hire is licensable, both need to know which rule applies in a specific state on a specific date -- and the two pathways can coexist with different experience and exam-eligibility requirements, so a single 'hours required' number is not enough. No federal body regulates CPA licensure; each state board of accountancy sets and amends its own rule, and the national umbrella body (NASBA) publishes the state list only as an image map and an embedded spreadsheet, not as extractable text. (9 records, last verified 2026-08-31, JSON at https://referencesource.org/cpa-licensure-pathway-by-state/data.json)
- [Current CPSC consumer product recalls, with hazard and remedy](https://referencesource.org/cpsc-consumer-product-recalls-current/): Every consumer product recall the U.S. Consumer Product Safety Commission announced in 2026, one record per recall, with the hazard CPSC states, the remedy it directs consumers to, how many units are affected, the incidents and injuries reported, the recalling firm and the country of manufacture -- each quoted from that recall's own page on cpsc.gov. CPSC's recall search at cpsc.gov/Recalls is the complete authoritative list for a person with a browser, but a scripted fetch of it gets only the search form and its category filters -- the recall results are loaded by JavaScript and are on no reading of the page (fetched 2026-09-01: HTTP 200, 66,088 characters, 160 occurrences of 'recall', not one of them a recall listing). So there is no way to enumerate recalls except through the REST API CPSC operates at saferproducts.gov. That API is used here as an index only -- to find the recalls and to cross-check what was parsed -- and never to supply a published value: individual recall pages on cpsc.gov are not blocked, so every record cites and quotes the original. Reading both renderings is what makes two things checkable that neither shows alone: the API's snapshot of a recall can lag the page after CPSC amends it (recall 26-698's page adds an Amazon ASIN and rewords the refund the API still describes the old way), and a recall's hazard and its remedy are separate facts that summaries routinely conflate. Answers 'has this product been recalled', 'what is the hazard with it', 'what do I do if I own one', and 'how many were sold'. A recall is a point-in-time announcement whose remedy details do get amended afterwards, so this is a monitored feed rather than a fixed table: stale_after_days is deliberately short, and a rebuild should pull a rolling recent window from the API and re-read the pages rather than backfilling the archive. (485 records, last verified 2026-09-22, JSON at https://referencesource.org/cpsc-consumer-product-recalls-current/data.json)
- [Criminal record expungement and sealing waiting periods by state](https://referencesource.org/criminal-record-expungement-waiting-periods-by-state/): How long after a conviction can someone petition to expunge or seal it? Every state sets its own clock, tiered by offense class (petty offense, misdemeanor, felony, and finer subclasses many states use), and the clock rarely starts at conviction — most states measure from final discharge, sentence completion, or release from supervision, not the conviction date itself. Getting this wrong is expensive: filing a petition before the statutory window opens gets it summarily denied, and job and housing applications increasingly ask 'has your record been sealed', so the waiting period is the actual gating fact behind that question. One record per state per offense tier — e.g. 'petty offense', 'class 2/3 misdemeanor', 'class 4-6 felony' — quoted verbatim from that state's own revised statutes, never from a law-firm summary or the otherwise-excellent Collateral Consequences Resource Center's narrative write-ups (real and current, but prose, not a queryable table, and without a consistent statute citation per fact). The period is recorded in the statute's own words, not converted, because the conversion is where these tables go wrong — 'three years' should never become '1095 days'. Answers 'how long before I can expunge a misdemeanor in Ohio', 'when can a felony be sealed in Arizona', 'expungement waiting period by state'. This is a deadline lookup, not legal advice: many states carve out entire offense categories (violent, sexual, DUI, offenses against minors) as permanently ineligible regardless of time elapsed, and the record notes this where the statute states it in the same breath as the waiting period. A separate, harder-to-source fact — whether a state has enacted 'Clean Slate' automatic expungement (no petition required) — is a strong candidate to add as its own field once sourced; several states adopted or activated it in 2025-2026 (Illinois January 2026, DC January 2026, Virginia July 2026, Missouri SB 1421 pending an operative date), which is exactly the kind of change that leaves old answers wrong. (43 records, last verified 2026-09-02, JSON at https://referencesource.org/criminal-record-expungement-waiting-periods-by-state/data.json)
- [US state data breach notification deadlines by state](https://referencesource.org/data-breach-notification-clocks/): US state-by-state data breach notification requirements: how many days a business has to notify affected residents after discovering a breach, the deadline and resident-count threshold for notifying the state Attorney General (or equivalent regulator), and the resident-count threshold that triggers notice to consumer reporting agencies. Answers 'how many days to notify after data breach', 'data breach notification deadline [state]', 'when must a company notify the attorney general of a data breach', 'what is the breach notification law in [state]', 'how long does a company have to report a data breach to customers', 'data breach notification requirements by state'. Hard deadlines range from 30 days (California, Florida, Washington) through 45 days (Oregon, Wisconsin) to 60 days (Texas); most states require 'most expedient time possible and without unreasonable delay' with no hard number. No single government page states all 50 states together — each state's statute is the authority — which is why aggregator surveys (Foley, IAPP, Perkins Coie) exist but cite the statutes we read directly. Each record covers one state and its primary breach notification statute. (18 records, last verified 2026-08-18, JSON at https://referencesource.org/data-breach-notification-clocks/data.json)
- [Federal controlled substance schedule (I-V) by drug, with DEA code number](https://referencesource.org/dea-controlled-substance-schedule-by-drug/): Every substance named in the federal drug schedules at 21 CFR 1308.11-1308.15, with the schedule it sits in, its DEA Controlled Substances Code Number, the class it is listed under, and the exact paragraph of the regulation the entry comes from. One record is one substance at one paragraph, quoted from the regulation itself. A drug can sit in more than one schedule at the same time, and the difference is usually the preparation rather than the drug: codeine is Schedule II on its own, Schedule III in a limited-strength compound, and Schedule V at not more than 200 milligrams per 100 millilitres. Each of those is a separate record, so the answer is not silently collapsed into whichever listing came first. Marijuana is split the same way: Schedule I as a plant, and Schedule III in an FDA-approved product or when subject to a state medical marijuana licence. Substances placed in Schedule I on an emergency temporary basis carry the date that placement runs until, with one deliberate exception. Fentanyl-related substances at 1308.11(h)(30) are left blank: the regulation's own Effective Date Note ends with Congress extending that paragraph 'until Sept. 30, 2025', a date now past, yet the paragraph is still printed -- because the substances did not stop being Schedule I. Congress put them there permanently on July 16, 2025 by the HALT Fentanyl Act (Public Law 119-26), which added paragraph (e) to Schedule I of 21 U.S.C. 812(c), and 21 CFR 1308.11 does not mention it. Printing 'expires Sept. 30, 2025' against that row would be a verbatim quote of the regulation and would answer the question backwards. Two limits are worth knowing: the anabolic steroids in 1308.13(f) share a single code number for the whole class, so individual steroids are published with no code rather than an invented one, and a few entries print XXXX where a code would go. Answers what schedule a given drug is in, whether marijuana is Schedule I or III, what the DEA code number for a substance is, and when a temporary listing expires. (591 records, last verified 2026-09-01, JSON at https://referencesource.org/dea-controlled-substance-schedule-by-drug/data.json)
- [DEA telemedicine controlled-substance prescribing flexibility -- extension history](https://referencesource.org/dea-telemedicine-prescribing-flexibility-extensions/): Under the Ryan Haight Act a practitioner may normally prescribe a controlled substance only after at least one in-person evaluation of that patient. In March 2020 the DEA suspended that requirement for the COVID-19 public health emergency, and since the emergency ended on 11 May 2023 the suspension has been kept alive only by a chain of temporary rules -- four of them so far, each amending 21 CFR 1307.41 and 42 CFR 12.1 to push one expiry date to a later one, with a permanent 'special registration' rule still only a proposal. This asset is one record per temporary rule, carrying the rule's own DATES statement, the date it extended the flexibility to, and the earlier expiry date it replaced, each quoted from that rule's own Federal Register document. Two things make the history worth assembling. First, the dates are easy to get wrong: the First Temporary Rule is dated 'effective May 11, 2023, through November 11, 2024', but the general flexibility under it actually ran only to 11 November 2023 -- the extra year applied solely to practitioner-patient relationships already established by that date. Second, each rule is a standalone document that supersedes the last without amending it, so a reader who lands on any one of the first three sees a deadline that has already passed with nothing on the page to say so. The newest rule's preamble does narrate the earlier three in prose, which is where a careful reader can reconstruct the sequence; this asset states it as four dated, separately-sourced records instead. (4 records, last verified 2026-10-27, JSON at https://referencesource.org/dea-telemedicine-prescribing-flexibility-extensions/data.json)
- [Deer hunting season dates by state, 2026–27: archery, firearm and muzzleloader seasons from state wildlife agencies](https://referencesource.org/deer-season-dates-by-state/): The 2026–27 deer season dates for each US state, one record per state per season type (archery, firearm/gun, muzzleloader, youth), taken from the state wildlife agency's own published season table. Dates change every year, many states set them by formula ('Saturday before Thanksgiving'), and unit-level exceptions are common — so the unaided answer is usually last year's date or a content-mill guess. Each record carries the statewide date range as printed and a flag when the agency's page shows unit/zone variation. Answers 'when does gun deer season open in Wisconsin in 2026?', 'is archery season still open in Pennsylvania in December?', and 'do Wisconsin and Minnesota firearm seasons overlap?' (4 records, last verified 2026-08-11, JSON at https://referencesource.org/deer-season-dates-by-state/data.json)
- [Discontinued electronic component replacement mapping](https://referencesource.org/discontinued-part-replacement-mapping/): Discontinued electronic components and their manufacturer-suggested replacements, with last-time-buy and last-ship dates where published. Covers EOL notices from TI, NXP, Renesas, Infineon, onsemi, ST, Microchip, Cirrus Logic and commonly sought legacy parts. Answers 'what replaced [part number]' and '[part] superseded by what' — the supersession lookup assistants get wrong on obscure components. (28 records, last verified 2026-08-03, JSON at https://referencesource.org/discontinued-part-replacement-mapping/data.json)
- [Medical conditions that disqualify a commercial driver under 49 CFR 391.41](https://referencesource.org/dot-cdl-medical-disqualifying-conditions/): The physical qualification standards every interstate commercial driver (truck or bus, CDL or not) must meet under 49 CFR 391.41(b), one record per numbered clause: diabetes treated with insulin, high blood pressure, epilepsy, respiratory dysfunction, cardiovascular disease, vision (20/40 acuity, 70-degree field, colour recognition), hearing (whispered voice at 5 feet or 40 dB average loss), and the rest of the thirteen. Answers 'can a diabetic driver get a CDL', 'what blood pressure disqualifies a truck driver', 'CDL hearing requirement', 'CDL vision requirement 20/40'. The regulation is short and stable, but its numbered clauses set exact numeric thresholds (decibels, Snellen ratios, degrees of visual field) that generalist summaries routinely round off or drop the exception clause from -- e.g. the insulin clause is not an absolute bar, it defers to the exemption program at 391.46, and a summary that omits that turns a conditional disqualification into an absolute one. (17 records, last verified 2026-10-29, JSON at https://referencesource.org/dot-cdl-medical-disqualifying-conditions/data.json)
- [DOT hazmat placarding requirements by hazard class (any-quantity vs. 1,001 lb threshold)](https://referencesource.org/dot-hazmat-placarding-thresholds/): A shipment of hazardous material must be placarded on the transport vehicle, and which placard applies -- and whether it is required at any quantity or only once the aggregate gross weight of that class crosses 1,001 lb (454 kg) -- is fixed by two tables in one regulation, 49 CFR 172.504(e). Table 1's eight categories (explosives 1.1-1.3, poison gas, dangerous-when-wet, temperature-controlled organic peroxide, poison-inhalation-hazard, radioactive) require the named placard regardless of quantity. Table 2's fifteen require it only above 1,001 lb -- but that exception is a highway/rail exception that does not reach bulk packagings, which need a placard at any quantity, so every record carries the general rule and the exception's own scope alongside the number. Each record is one hazard-class / placard pairing. Answers 'do I need to placard this shipment', 'how much of this hazard class triggers a placard', 'which placard goes with hazard class 5.1'. (23 records, last verified 2026-10-28, JSON at https://referencesource.org/dot-hazmat-placarding-thresholds/data.json)
- [DOT minimum random drug and alcohol testing rates by transportation mode](https://referencesource.org/dot-random-drug-alcohol-testing-rates-by-mode/): Every DOT-regulated transportation employer (aviation, transit, rail, trucking/motor carrier, pipeline) must randomly drug- and/or alcohol-test a minimum percentage of its safety-sensitive workforce each calendar year, but each modal agency sets and re-announces its own rate separately, in its own format, based on that mode's industry-wide positive test rate — and DOT's own cross-modal aggregator page (transportation.gov/odapc/random-testing-rates) is not reachable by an automated fetcher (403). No other page assembles the current year's rate across modes; an employer or safety consultant working across modes has to find each agency's own annual notice. Two things this makes visible that a single-mode page cannot: FRA sets three different rates for three employee categories (covered service, maintenance-of-way, mechanical), and FMCSA publishes no annual notice at all — its rate stands in the regulation until it changes. Each record is one mode (and, for FRA, one employee category) with its minimum random testing rate(s), the CFR basis where the source states one, and the industry positive rate that held or moved it. Answers 'what percentage of drivers/pilots/transit employees must be randomly drug tested this year', 'why did the random testing rate change', 'is our testing rate above or below the DOT minimum'. (7 records, last verified 2026-10-28, JSON at https://referencesource.org/dot-random-drug-alcohol-testing-rates-by-mode/data.json)
- [Tap drill size and drill-size decimal equivalents](https://referencesource.org/drill-tap-decimal-equivalents/): Two related lookups machinists and hobbyists need together: (1) which tap drill to use for a given inch or metric thread (e.g. 1/4-20 UNC needs a #7 drill for approximately 75% thread engagement), and (2) the decimal-inch size of every number, letter, fraction and metric drill, so a shop can pick the nearest drill it actually owns. Two independent vendor sources are used for each table so a disagreement between them can be flagged rather than silently trusted. Answers 'what size do I drill before tapping 1/4-20', and 'what decimal is a #7 drill' — a complete range in one place beats looking up one size at a time. (570 records, last verified 2026-10-29, JSON at https://referencesource.org/drill-tap-decimal-equivalents/data.json)
- [Drinking water contaminant limits by regulator](https://referencesource.org/drinking-water-contaminant-limits/): The legally enforceable maximum concentration of a contaminant in public drinking water, stated separately by each regulator that sets one. Each record is one contaminant under one regulator, carrying the limit, its unit, and the regulator's own name for the limit (MCL in the US, 'parametric value' in the EU and UK). Covers the US EPA National Primary Drinking Water Regulations, EU Directive 2020/2184, and the UK Water Supply (Water Quality) Regulations 2016. Answers 'what is the EPA limit for arsenic in drinking water', 'EU vs US drinking water lead limit', 'is the UK nitrate limit the same as the EU one', and 'what is the PFOA maximum contaminant level'. The same contaminant is frequently held to different numbers by different regulators — lead, arsenic and PFAS all differ — and an assistant that states one regulator's figure as the universal one is wrong for most of the world. (182 records, last verified 2026-08-06, JSON at https://referencesource.org/drinking-water-contaminant-limits/data.json)
- [Driver's license point systems: suspension thresholds and lookback periods by US state](https://referencesource.org/driver-license-points-thresholds-by-state/): For each US state that runs a demerit-point system: how many points trigger a license suspension, over what lookback period, and for how long the suspension runs — sourced from each state's statute or DMV rule. Answers 'how many points until my license is suspended in [state]', 'how long do points stay on my license in [state]', and 'does [state] have a points system'. The thresholds differ sharply (Florida: 12 points/12 months = 30 days, 18/18 = 3 months, 24/36 = 1 year; North Carolina: 12 points in 3 years, or 8 after a reinstatement) and roughly ten states run no point system at all — a nuance the content-mill summaries flatten. States with no point system get a record saying so, from the state's own page. (14 records, last verified 2026-08-18, JSON at https://referencesource.org/driver-license-points-thresholds-by-state/data.json)
- [State drug price transparency reporting thresholds, triggers, and penalties for pharmaceutical manufacturers](https://referencesource.org/drug-price-transparency-thresholds/): State-by-state comparison of the dollar thresholds and percentage-increase triggers that require pharmaceutical manufacturers to report drug pricing information to state regulatory agencies. As of 2026, approximately 23 US states have enacted drug price transparency laws, each with different WAC (wholesale acquisition cost) thresholds for new drugs, different percentage-increase triggers for existing drugs, different reporting timeframes, and different penalty structures. Each record is one state with its reporting thresholds. Answers 'at what price or price increase must I report in [state]', 'what is the penalty for not reporting in [state]', and 'which states require drug price transparency reporting'. (10 records, last verified 2026-10-28, JSON at https://referencesource.org/drug-price-transparency-thresholds/data.json)
- [FDA drug shortage duration tracker](https://referencesource.org/drug-shortage-duration-tracker/): For every package FDA currently lists as in shortage: how long that shortage entry has been open (from openFDA's own `initial_posting_date` to today), what FDA says the package's supply is right now, and any recovery estimate FDA has given. What FDA itself publishes, checked directly on 2026-09-01 rather than assumed: the shortage list page (accessdata.fda.gov/scripts/drugshortages) shows which drugs are short and why and carries no date at all, while each per-drug detail page adds a single 'Date first posted' for the whole drug. Neither prints an elapsed duration, and neither gives the date per manufacturer. openFDA does — where several manufacturers report a shortage of the same drug, each carries its own posting date, and FDA's page shows only the earliest of them. Cross-checked across 30 drugs against those detail pages: 30 of 30 agreed, and in all 10 multi-manufacturer cases FDA's single date was exactly the earliest of ours. The underlying facts are FDA's own public-domain data; the duration is a computation over them that nobody publishes maintained, because it changes every day and hand-updating it was never worth the effort. A scheduled refetch of the same public API keeps it current for free. Read the duration next to `availability`, and do not read it alone: a shortage entry stays 'Current' until FDA resolves the whole shortage, so 63.8% of listed packages (746 of 1,169, measured 2026-09-01) are marked 'Available' even while their entry has been open for years — the median entry has been open 1,721 days and 1,118 of 1,169 have been open more than 1,000. Records cite a per-drug, per-manufacturer API query rather than a page offset, because openFDA's result ordering rotates daily and an offset URL stops containing its own record — see sources.txt. Source: https://api.fda.gov/drug/shortages.json (openFDA, no API key required at this volume). This is a monitored dataset, not a static page — stale_after_days is short and a build should re-run the fetch on a schedule rather than once. (1139 records, last verified 2026-10-26, JSON at https://referencesource.org/drug-shortage-duration-tracker/data.json)
- [Duplicate vehicle title fee and processing time by state](https://referencesource.org/duplicate-vehicle-title-fee-by-state/): What it costs and how long it takes to replace a lost, stolen or destroyed vehicle title, state by state, sourced from each state's own DMV/DOR/county-clerk page rather than a third-party blog. Every state runs its own process and the numbers genuinely differ ($14 in Tennessee, $20/$35 in-state/out-of-state in Nevada) and change without notice, and third-party blogs disagree with each other on the same state's fee (multiple sites quoted $20, $23 and $28 for the same California fee during initial research) with no way for a reader to tell which is current. Nobody maintains a comprehensive, sourced, all-50-state version of this for free — the closest things found are ad-supported blog aggregators repeating stale or inconsistent numbers, and paid title-service companies whose business is exactly this friction. Covers 50 of 51 jurisdictions (50 states plus DC); Massachusetts is omitted because its fee is set administratively and the schedule is on a host that blocks automated fetching, so no citable figure exists -- see sources.txt. Answers 'how much to replace a lost car title in [state]', 'how long does a duplicate title take in [state]', and whether expedited processing is offered and at what extra fee. (50 records, last verified 2026-08-27, JSON at https://referencesource.org/duplicate-vehicle-title-fee-by-state/data.json)
- [Electrician licence progression: training hours and prerequisites by US state](https://referencesource.org/electrician-licence-progression-by-state/): What it takes to move up the electrician licence ladder in each US state: the on-the-job training hours, the classroom hours, the licence you must already hold and for how long, and the separate hour threshold that lets you sit the exam before you qualify for the licence. One record is one licence level in one state, sourced from that state's licensing authority. Answers 'how many hours of on-the-job training for a journeyman electrician in Texas', 'journeyman electrician requirements by state', 'how do I become a master electrician', 'how many hours to take the electrician exam', and 'do my apprentice hours transfer to another state'. Texas has two thresholds that are constantly conflated — 7,000 hours to sit the exam, 8,000 hours for the licence — and master requires holding the journeyman licence for two years plus 12,000 hours, with industrial journeyman experience explicitly excluded. There is no federal electrician licence and no national board, so the comparison exists nowhere and the search results are exam-prep vendors. (2 records, last verified 2026-08-06, JSON at https://referencesource.org/electrician-licence-progression-by-state/data.json)
- [Electrician licence reciprocity by state: which states accept which licences, in which direction, on what conditions](https://referencesource.org/electrician-licence-reciprocity-by-state/): Which states will licence an electrician on the strength of another state's licence, per licensing board, with the direction and the conditions kept — the two things every aggregator flattens. Reciprocity agreements are directional and class-specific: Texas accepts journeyman licences from ten states (Alabama, Alaska, Arkansas, Idaho, Iowa, Nebraska, New Mexico, Oklahoma, South Dakota, Wyoming) but master licences from a different seven, and requires the licence held at least one year and gained by that state's own exam. The data churns: Texas added Arkansas (Dec 2025), Iowa (Feb 2026), Alabama (Mar 2026) and Ohio (Jun 2026) under a 2025 state law directing agencies to pursue agreements — every content-mill list found predates at least one of these. Answers 'which states does Texas have journeyman electrician reciprocity with?', 'can I use my Idaho journeyman licence in Oregon?', 'does my master electrician licence transfer to another state?' (16 records, last verified 2026-10-15, JSON at https://referencesource.org/electrician-licence-reciprocity-by-state/data.json)
- [How often elevators must be inspected in each US state: intervals, filing rules, fees and the ASME A17.1 edition enforced](https://referencesource.org/elevator-inspection-requirements-by-state/): Per-state elevator inspection requirements: how often a passenger elevator must be inspected, who performs and files the inspection, the filing fee and deadline, the penalty for a missed inspection, and which edition of the ASME A17.1 safety code the state enforces. The variation is large: Texas requires inspection every 12 months with the report and $20-per-unit fee filed to TDLR within 30 days, and administrative penalties up to $5,000 per day for missed inspections (Texas Health & Safety Code ch. 754); New York City tests twice annually with a Category 5 load test every five years; the enforced A17.1 edition spans roughly 2004 (California) to 2019 (Connecticut). Answers 'how often does my building's elevator need to be inspected?', 'what happens if the elevator inspection is late?', 'which ASME A17.1 edition does my state enforce?' (5 records, last verified 2026-08-11, JSON at https://referencesource.org/elevator-inspection-requirements-by-state/data.json)
- [Which energy code each US state enforces for new homes: the IECC edition (or state equivalent) actually in force, with effective dates and amendments, from the state rules themselves](https://referencesource.org/energy-code-adoption-by-state/): Which residential energy code is actually in force in a state, taken from the state's own rule or building-code authority, with the effective date and — where the rule states them — the state's amendments to it. Coverage is 9 states so far (California, Colorado, Florida, Georgia, New Jersey, Oregon, Pennsylvania, Texas, Washington), deliberately chosen to span the situations that break a one-size-fits-all answer, not the easy ones; the remaining states are listed as work to do in the asset's source notes rather than guessed at. What the pilot found: Georgia still runs the 2015 IECC with Georgia Supplements and Amendments even though it moved its other I-codes to the 2024 editions; Texas never adopted the IECC for homes at all, enforcing Chapter 11 of the 2015 International Residential Code since Sept. 1, 2016; New Jersey moved to the 2024 IECC on August 17, 2026, so anything still showing 2021 for New Jersey is out of date; Pennsylvania adopts the 2021 IECC but amends the residential envelope requirements in its own regulation; California, Florida and Oregon run state-written codes rather than adopting the IECC by name; and Colorado has no single statewide code, requiring local jurisdictions to adopt the state Model Low Energy and Carbon Code when they update any other building code. Answers 'which IECC edition does my state enforce?', 'what energy code applies to new residential construction in my state?', 'does my state amend the IECC or adopt it as written?', 'which states are still on the 2015 IECC?' (9 records, last verified 2026-10-28, JSON at https://referencesource.org/energy-code-adoption-by-state/data.json)
- [English test score equivalence: TOEFL, IELTS, CEFR, PTE Academic and the Cambridge English Scale, as published by each test's owner](https://referencesource.org/english-test-score-equivalence/): What a score on one English proficiency test is worth on the other scales admissions offices use, taken from each test owner's own published concordance: ETS's TOEFL iBT tables (total and section scores against IELTS Academic bands, against CEFR levels, and the mapping between the 0–120 scale and the 1–6 scale introduced for tests taken on or after January 21, 2026), Pearson's PTE Academic score bands against CEFR levels, Cambridge English's alignment of the Cambridge English Scale against CEFR levels and IELTS bands, and IELTS's own statements of where its bands sit on the CEFR. One record is one score-to-score correspondence exactly as its publisher prints it; no single publisher covers all of these tests, and each concordance comes only from the owner of the test being converted. Answers 'what is TOEFL 94 in IELTS', 'TOEFL 100 equivalent IELTS band', 'what TOEFL score is C1', 'IELTS 6.5 in TOEFL', 'what does a 4.5 on the new TOEFL scale mean', 'what PTE score is B2', 'what IELTS band is C1', and 'what is 180 on the Cambridge English Scale'. Assistants routinely paraphrase these concordances from memory with off-by-half-band errors. (336 records, last verified 2026-08-11, JSON at https://referencesource.org/english-test-score-equivalence/data.json)
- [EPA national recommended water quality criteria for human health: pollutant concentration thresholds](https://referencesource.org/epa-water-quality-criteria-human-health/): EPA Section 304(a) recommended human health ambient water quality criteria for 127 pollutants. For each pollutant: the CAS number, the 'water + organism' threshold in µg/L (for waters that are both a drinking-water source and support aquatic life), the 'organism only' threshold (for waters not used as drinking-water sources), the year EPA published that pollutant's criterion, and EPA's own note on the criterion where the table carries one. The publication year is worth reading before the number is used: it runs from 1980 to 2019, so two values sitting in the same column can be nearly four decades apart in vintage, and seven rows carry no criterion at all (an em dash), three of them draft PFAS entries. The note is where EPA says what the number means — most often that the criterion is set at a one-in-a-million (10-6) cancer risk and that the decimal point may be moved for a different risk level, or that EPA has also issued an enforceable Maximum Contaminant Level for the same pollutant, or that the organoleptic (taste and odour) criterion may be stricter than the health one. These are recommendations for states adopting water quality standards, NOT enforceable MCLs (which are in drinking-water-contaminant-limits). Used by environmental consultants writing NPDES permits, state agencies setting water quality standards, and industrial dischargers determining compliance. Note: this is a mirror of one EPA table. The stronger juxtaposition version comparing EPA recommended values with state-adopted criteria would not be a mirror, because states adopt different numbers for the same pollutant. (127 records, last verified 2026-10-28, JSON at https://referencesource.org/epa-water-quality-criteria-human-health/data.json)
- [EPCRA Tier II hazardous chemical inventory reporting thresholds by state](https://referencesource.org/epcra-tier-ii-state-reporting-thresholds/): The quantity threshold at which a facility must file an annual Tier II hazardous chemical inventory report, taken from each jurisdiction's own statute or rule and compared to the federal EPCRA Section 312 baseline. Federal thresholds: ≥10,000 lbs for hazardous chemicals, ≥500 lbs or the threshold planning quantity (whichever is lower) for extremely hazardous substances (40 CFR Part 370). EPA authorizes states to set lower thresholds and add chemicals. Seven jurisdictions are published here as doing so, each quoted from the instrument that sets it: California (55 gal / 500 lbs / 200 cu ft, Cal. Health & Safety Code § 25507), Vermont (100 lbs or the TPQ, whichever is less — the strictest general threshold found), New York City (500 lbs with a hazard-category table reaching down to 1 lb, 15 RCNY 41-04), Delaware (55 gal / 500 lbs, 16 Del. C. § 6306), Louisiana (500 lbs, LAC 33:V.10109), Oregon (a graduated table, OAR 837-085-0070), and New Jersey (EHS at 500 lbs or the SARA 302 TPQ, N.J.A.C. 7:1G). Sixteen states are published at the federal figures, each because its own SERC or environmental agency states those figures in its own words — Nevada, Utah, Virginia, Kansas, Maryland, Hawaii, Texas, North Carolina, Rhode Island, Illinois, Colorado, Pennsylvania, Ohio, Washington, Michigan and South Dakota. Four of them reach the same numbers through an instrument of their own: Illinois under 430 ILCS 100 and 29 Ill. Adm. Code 620, Pennsylvania under Act 165 of 1990 § 207(c), Ohio under ORC § 3750.08, and Hawaii which collects them on its own HCI/Tier II Form. Utah states the pattern outright — its DEQ answers the question directly: 'No, currently Utah has not implemented any other Tier 2 reporting requirements in addition to the federal requirements'. Nevada's International Fire Code quantities are a separate permit obligation that secondary sources routinely mistake for the reporting threshold. Answers 'does my California facility need to file Tier II for 600 pounds of a hazardous chemical' (yes — the California threshold is 500 lbs for solids, below the federal 10,000), 'what is Vermont's Tier II threshold', 'is Texas at the federal Tier II threshold', and 'which states have lower Tier II thresholds than federal'. States absent from this dataset are states whose own instrument has not been read, not states confirmed to match the federal baseline: a state appears here only once its own agency page states a number, never because no lower number was found. (24 records, last verified 2026-10-28, JSON at https://referencesource.org/epcra-tier-ii-state-reporting-thresholds/data.json)
- [ESAB recommended filler metals and suggested preheat group, by ASTM steel grade](https://referencesource.org/esab-filler-metal-recommendations-by-astm-steel-grade/): Which filler metals ESAB recommends for welding a given ASTM steel grade, and which of its four preheat groups (A-D) that grade falls in. Answers 'what ESAB rod do I use to weld ASTM A106 Grade C pipe'. WHICH WELDING PROCESSES THESE PAGES COVER: all six that the source covers, as of 2026-09-16. ESAB's table runs across FACING pages. The left page carries the preheat group, stick (SMAW) and gas-shielded wire/rod (GMAW/GTAW); the right page recommends fillers for the same grade rows under submerged arc (SAW), gas-shielded flux-cored (FCAW), self-shielded flux-cored (FCAW) and metal-cored (MCAW). 699 of the 794 records now answer at least one of those four. The other 95 give the left page only, for two different reasons, and neither is an omission that can be quietly filled in: 57 of them sit in 10 ASTM blocks (A269, A487, A508, A333, A334, A420, A989, A536, A494, A589) where one row of the block is blank on the right and nothing in the PDF says WHICH end it is blank at, so every row in the block could be shifted by one; the remaining 38 are rows where ESAB prints no right-hand recommendation at all. A row we cannot place is left empty rather than guessed, because guessing would invent a welding recommendation for a named steel. HOW THE ROW ALIGNMENT WAS PROVED, since the right page carries no ASTM or grade column and a row's only identity is its position: every block is anchored in a second, column-major reading of the same PDF and its four left-hand columns consumed out of that reading character for character, then each row placed by the span of the surviving blank lines rather than by packing lines from the top. That is checked against the source itself, not assumed -- of the 704 placed rows, 347 name an alloy on BOTH pages (308L, B3, 2209, NiCrMo-3), and in all 347 the two pages agree; shifting the join by one row inside the same block drops that agreement to 36%. The hand check the brief asked for passes: A47 and A48 both read 'OK NiFeCI-A/NiFeCI-A0' on the left and both land on 'NC 55' under gas-shielded flux-cored with the other three processes blank. WHAT THE QUOTE UNDER THOSE FOUR FIELDS CAN AND CANNOT SHOW, because it is easy to expect more of it than it can give: the right-hand page prints no ASTM or grade column, so the passage quoted for a SAW, flux-cored or metal-cored value is that page's row exactly as printed, and it cannot name the steel it belongs to. Its column headings sit roughly 170 printed lines above the data, so no contiguous passage carries a heading and a value together either. 1,464 of those 1,697 row quotes name at least one product and are distinctive; the remaining 233 are nothing but bare group numbers ('Group 1 Group1 Group 1'), a string that occurs up to 546 times in this section and states nothing on its own. So for these four fields the quote shows that the page prints this value in this row, and which steel the row belongs to rests on the alignment above rather than on the quote. That alignment was re-checked independently on 2026-10-01, from the published records alone rather than from the extraction that wrote them: of 327 rows naming an alloy on both pages, 297 agree outright, and all 30 apparent exceptions are ESAB's two naming systems for one metallurgy ('7018-Mo' against '7000-A1', '308' against '308L', '8018-C1' against '8-Ni2') -- against 28% agreement if the join is shifted one row down, 24% one row up, and 12% two. Every record comes from one section of one manufacturer's databook, headed on the page itself as 'Recommended ESAB Filler Metals' -- so this is that vendor's advice, not a vendor-neutral cross-reference, and the name says so. Two things follow from that. First, the filler values are ESAB product names (Atom Arc 7018, Spoolarc 120, OK 61.81) and ESAB group codes, and a group code is defined separately for each welding process: 'Group 1' for stick means SW 6010 / SW 10P / SW 6011 / SW 6013 / SW 7014, while 'Group 1' for MIG means Spoolarc 29S / 82 / 86 / 87HP / Aristorod 12.50. Same label, different products; the databook expands both in its own legend at printed page 7-2, and each record now carries the expansion for the group its own row names, quoted from under that legend's process heading. Under gas-shielded flux-cored (Dual Shield), which is the one process whose legend runs to four groups, the expansion is published one field per group rather than as a single list: 52 rows name more than one group, and 15 of those name a set the legend does not print side by side ('Group 1, Group 2, Group 4'), so any single value for them would have to be either a string ESAB never printed or a span that swallows a group ESAB did not recommend for that steel. One field per group avoids both — every value is one printed legend line, and a row simply fills the fields for the groups it names. Second, the preheat value is a letter and not a temperature: A-D index a preheat-temperature-by-steel-thickness table at the head of the section. That table is now carried too, so a record states the temperatures its letter points to rather than only the letter -- but they remain what the source calls 'suggested ranges', adding 'Check your welding procedure for a more specific preheat temperature.' The two temperature fields have the same kind of limit as the four process fields above, and it is worth stating because the numbers look more self-evident than they are: the passage quoted under them is the WHOLE preheat table, all four columns, and nothing inside it says which column belongs to this steel. That comes from the preheat letter, which this record also publishes with the row that prints it, so the check is two steps and both are on the page: read the letter off the row, then read down that column of the table. Every one of the 738 temperature values was re-checked against the printed table by letter on 2026-10-01 and all 738 agree. A vendor-neutral version of this cross-reference does exist but is sold rather than published: AWS's Filler Metal Comparison Charts (FMC:2000). Adding a second manufacturer's catalog would put a second brand's product codes beside these, not turn either into generic ones. (794 records, last verified 2026-08-19, JSON at https://referencesource.org/esab-filler-metal-recommendations-by-astm-steel-grade/data.json)
- [Eviction notice periods for nonpayment of rent by US state — how long a landlord must wait, quoted from the state statute](https://referencesource.org/eviction-notice-periods-for-nonpayment-by-state/): Before a landlord can file an eviction for nonpayment of rent, nearly every state requires a written demand or notice and a waiting period — three days in California, Florida and Texas, five in Illinois and Arizona, ten in Pennsylvania, fourteen in Washington, Virginia and Massachusetts. The periods are not comparable on their face: California and Florida exclude weekends and holidays, Texas sets a floor a lease may lengthen, Illinois sets a floor the notice itself must exceed, and Georgia counts business days. Georgia is also the state most reference charts still get wrong — it long had no statutory waiting period for nonpayment at all, and the Safe at Home Act (HB 404) added a three-business-day notice to vacate or pay for residential leases entered into or renewed on or after July 1, 2024; FindLaw's own mirror of O.C.G.A. 44-7-50 was still serving the pre-amendment text when this was built, so Georgia here is quoted from the signed bill. Each record is one state, scoped to the nonpayment-of-rent ground only (lease violation, no-cause and holdover run on different clocks and are out of scope), with the notice period exactly as the statute states it, whether the tenant can stop the eviction by paying within that window, and the statute citation — each backed by a verbatim quote from the state's own statute or its official session-law text. Ten states so far, chosen because the legislature or code revisor serves the section as readable text; more are added as they are confirmed reachable. Answers 'how many days notice before eviction for nonpayment in [state]' and 'can I still pay and stop the eviction'. (10 records, last verified 2026-09-02, JSON at https://referencesource.org/eviction-notice-periods-for-nonpayment-by-state/data.json)
- [Eviction record sealing and expungement by US state](https://referencesource.org/eviction-record-sealing-and-expungement-by-state/): State-by-state comparison of eviction-record relief statutes — the mechanisms that keep an eviction filing off a tenant screening report. An eviction case is a public court record the moment it is filed, whether or not the landlord wins, and tenant-screening companies routinely report the filing itself, not just the outcome. A small but growing number of states now write relief into statute, and it takes three different legal forms, not one: sealing or setting aside the court file (Nevada, Oregon), delaying or restricting public access to it (California), and leaving the file open but barring tenant-screening companies from reporting it (Washington's 'limited dissemination'). This dataset covers all three, because from a tenant's point of view they answer the same question. The trigger varies as sharply as the remedy. California (CCP 1161.2) restricts access to every unlawful detainer file for 60 days from filing with no motion required, and it opens to the public only if the landlord wins. Nevada (NRS 40.2545) seals automatically on dismissal, ten judicial days after a denied eviction order, or 31 days after landlord inaction on a tenant's affidavit — and separately allows a tenant to move for sealing. Oregon runs two tracks at once: a tenant-filed motion under ORS 105.163, and a court-initiated annual sweep under ORS 105.164 that seals old judgments with no tenant action at all. Washington (RCW 59.18.367) is motion-only, on one of three named grounds, with no waiting period stated. Illinois (735 ILCS 5/9-121) puts both tracks in one section — discretionary sealing where the court finds the landlord's action 'sufficiently without a basis in fact or law', and mandatory sealing for three named categories of case. Colorado (CRS 13-40-110.5) has the earliest trigger of any state here: the record is suppressed on commencement of the action, before anything is decided. One record per relief route, not per state, because a state's automatic and motion tracks have different triggers and different waiting periods — collapsing them into one 'does this state allow eviction sealing' answer loses exactly the distinction a tenant needs. Each record quotes the state's own current statute. Answers 'can you get an eviction expunged in [state]', 'does [state] automatically seal eviction records', 'how long until an eviction falls off my record'. (18 records, last verified 2026-09-02, JSON at https://referencesource.org/eviction-record-sealing-and-expungement-by-state/data.json)
- [North American vs IEC/ATEX explosion protection designations](https://referencesource.org/ex-classification-system-crosswalk/): Crosswalk between the two concurrent hazardous-area classification systems: the North American Class / Division system of NEC Articles 500 and 505 (NFPA 70) and the CSA code, against the Zone system of IEC 60079, ATEX and IECEx. Each record is one designation in one system with its stated counterpart in the other, covering area classification (Division 1 and 2 against Zone 0, 1, 2, 20, 21, 22), gas groups (A, B, C, D against IIA, IIB, IIC, IIB+H2), dust groups (E, F, G against IIIA, IIIB, IIIC), protection concepts (explosion-proof against Ex d, intrinsically safe against Ex i, purged/pressurized against Ex p, dust-ignition-proof against Ex t, non-incendive against Ex nA/Ex ec) with the IEC standard number for each, and temperature codes T1 to T6 with their maximum surface temperatures. It also carries the equipment marking codes themselves -- the NEC 500 bracket codes (XP), (IS), (NI), (DIP), (PX), (PY), (PZ) and the NFPA 496 purge Types X, Y and Z, against the NEC 505 and CEC Ex / AEx codes -- each with the country whose column printed it, the hazard class and division or zone it is approved for, and the ISA, UL, FM, NFPA or CSA standard behind it, because the same code means different standards either side of the border: (IS) is UL 913 / FM 3610 in the US and C22.2 No. 157 in Canada. Answers 'is ATEX Ex d IIB T4 the same as Class I Div 1 Group C', 'what does T2D mean and is there an IEC equivalent', 'Division 1 or Zone 1 which is stricter', 'NEC Group B IEC equivalent', and 'can I install Zone 1 equipment in a Division 1 area'. Three things the mapping gets wrong when stated as a simple table: NEC 500 has no Zone 0 equivalent so Division 1 spans Zone 0 and Zone 1 and is under-specified for Zone 0; the North American temperature codes T2A, T2B, T2C, T2D, T3A, T3B, T3C and T4A have no IEC counterpart at all; and publishers disagree on NEC Group B, giving it as IIC or as IIB+H2, which changes the required flameproof gap. Every counterpart is quoted from the page that stated it and attributed, so the disagreement is visible. (122 records, last verified 2026-08-06, JSON at https://referencesource.org/ex-classification-system-crosswalk/data.json)
- [FAA drone weight thresholds that trigger a different rule set](https://referencesource.org/faa-drone-weight-thresholds/): A drone's takeoff weight alone decides which federal rules apply to it, and the thresholds are scattered across three parts of 14 CFR plus the recreational-flying statute, with no single page stating all of them together. Two independent rules exempt anything weighing 0.55 pounds or less: a drone flown under the recreational exception in 49 U.S.C. 44809 does not have to be registered (14 CFR 48.15(b)), and the remote identification design and production requirements do not apply to it (14 CFR 89.501(c)(3)) -- separate exemptions that happen to share the same figure. The same 0.55 pounds is also the ceiling for flying over people as a Category 1 operation (14 CFR 107.110(a)(1)). At the other end, 'small unmanned aircraft' -- the category Part 107 governs at all -- is defined as weighing less than 55 pounds on takeoff (14 CFR 107.3), and a recreational flyer may fly something 55 pounds or heavier only under community-based-organization standards at an approved fixed site (49 U.S.C. 44809(c)(3)). Each record is one threshold: the weight figure verbatim, what crossing it means, and the section that states it, quoted in full. Answers 'do I need to register my drone', 'does my drone need remote ID', 'how heavy can a drone be under Part 107', 'can I fly my drone over people'. (5 records, last verified 2026-08-26, JSON at https://referencesource.org/faa-drone-weight-thresholds/data.json)
- [Sizes where a DIN fastener and its ISO equivalent are not interchangeable](https://referencesource.org/fastener-standard-interchangeability-exceptions/): The specific thread sizes at which a withdrawn DIN fastener standard and its current ISO counterpart give DIFFERENT dimensions, so the two parts are not simply interchangeable. Each record is one size at which one named dimension differs between the two standards, with both published values side by side -- or, for two standard pairs, the publisher's own interchangeability verdict in its own words. Answers 'is DIN 933 the same as ISO 4017', 'DIN 934 vs ISO 4032 nut height', 'my drawing says DIN 931 and my distributor only stocks ISO 4014', and 'will my spanner still fit'. The headline DIN-to-ISO crossover mapping is easy, everyone publishes it, and it is NOT here: the sibling dataset fastener-thread-standard-equivalence owns that and states it from five publishers. What is here is the exception detail, where free sources fail and contradict each other. Wurth prints four sizes at which the width across flats changed between DIN 933 and ISO 4017 -- M10 17 mm becomes 16 mm, M12 19 becomes 18, M14 22 becomes 21, M22 32 becomes 34, meaning a different spanner -- while Monster Bolts lists that same pair as 'Fully interchangeable'. That disagreement is the fact, and it is published in full on the sibling's DIN 933 page, which carries both publishers' verdicts side by side and is linked from every page here. What this dataset adds is the sizes at which the blanket verdict fails. 16 standard pairs carry size-level divergences, across head diameter, head height, nut height, slot width and width across flats. Note that M22 goes UP, not down, so 'ISO is one size smaller' is a wrong rule of thumb. (140 records, last verified 2026-10-12, JSON at https://referencesource.org/fastener-standard-interchangeability-exceptions/data.json)
- [Fastener standard equivalences: DIN to ISO / EN crossover](https://referencesource.org/fastener-thread-standard-equivalence/): Which ISO or EN standard replaced or corresponds to a given DIN fastener standard, whether the two are dimensionally interchangeable or differ, and what changed. Covers hex bolts, socket screws, set screws, nuts, washers, pins, rivets, machine screws, studs, and other mechanical fastener types. Answers 'is DIN 933 the same as ISO 4017', 'what replaced DIN 912', and 'can I substitute one for the other' — questions where the practical answer depends on specific dimensional changes (width across flats, head height, thread range) that the sources document. (166 records, last verified 2026-08-12, JSON at https://referencesource.org/fastener-thread-standard-equivalence/data.json)
- [FDA import alert red lists: firms subject to detention without physical examination](https://referencesource.org/fda-import-alert-red-list/): Which foreign manufacturers, shippers and growers are on an FDA import alert red list, meaning every shipment from them is detained without physical examination (DWPE) at the US border. Each record is one firm on one import alert, with the firm name and address as FDA prints it, the country, the date FDA published the listing, and the product codes and product descriptions it covers. Answers 'is my supplier on an FDA import alert', 'is [firm] on the red list for import alert 66-41', 'why was my shipment detained without examination', 'which firms are on the FDA red list for undeclared pharmaceutical ingredients in supplements', and 'how do I check a Chinese manufacturer before ordering'. FDA publishes 153 separate import alerts as individual current-state pages with no cross-alert firm index, so answering 'is this firm flagged anywhere' means opening 153 pages; and firms are removed from red lists on petition with no record of the removal published at all, so an assistant answering from memory names firms that were delisted years ago. (14197 records, last verified 2026-09-30, JSON at https://referencesource.org/fda-import-alert-red-list/data.json)
- [FDA nutrient content claim qualification criteria](https://referencesource.org/fda-nutrient-content-claim-criteria/): Numeric thresholds that qualify a food product for each FDA-regulated nutrient content claim ('free', 'low', 'reduced', 'good source of', 'high', 'light'), broken out by nutrient (calories, fat, saturated fat, cholesterol, sodium, sugar, fiber) and food format (individual food, meal, main dish, dietary supplement, small-RACC food). Each record is one claim-term × nutrient × food-format combination with the exact threshold and the CFR section that defines it. Answers 'what qualifies as low sodium?' with the full matrix, not just the headline number. (90 records, last verified 2026-10-28, JSON at https://referencesource.org/fda-nutrient-content-claim-criteria/data.json)
- [Federal Hazardous Occupations Orders for Minors (29 CFR Part 570)](https://referencesource.org/federal-child-labor-hazardous-occupations/): Federal child labor law bans workers under 18 from 17 numbered 'Hazardous Occupations Orders' (29 CFR 570.51-570.68) -- driving, roofing, mining, explosives, power-driven meat slicers, forklifts and other high-lift trucks, circular saws and more -- and separately restricts 14- and 15-year-olds to a closed, positively-defined list of permitted work (29 CFR 570.34), everything outside that list being prohibited (29 CFR 570.33). Limited apprentice and student-learner exemptions apply to some of the orders under 29 CFR 570.50. A state law stricter than federal law controls: North Carolina's own labor department bans nine further 'detrimental' occupations -- welding, work with a risk of falling 10 feet or more, electrician's-helper work, confined spaces, respirator use -- that federal law permits at 16. Each record carries the section it comes from and a verbatim quote of the regulation, so a parent or small-business owner asking 'can I let my 16-year-old operate a forklift' can check the answer against the rule itself. DOL's own summary at webapps.dol.gov/elaws lists the 17 orders one line each with none of the substantive detail; the state layer here is North Carolina only so far. North Carolina's Youth Employment Rules page states separately that 'Employment in hazardous or detrimental occupations are not permitted for youths under the age of 18', but the page listing the nine occupations does not repeat the age, so these records do not claim one. (67 records, last verified 2026-10-29, JSON at https://referencesource.org/federal-child-labor-hazardous-occupations/data.json)
- [Federal civil penalty maximums — current inflation-adjusted amounts across agencies](https://referencesource.org/federal-civil-penalty-maximums/): The current maximum (and where stated, minimum) civil monetary penalty for each violation type, across federal agencies, as each agency's own inflation-adjustment regulation states it: OSHA (29 CFR 1903.15), EPA (40 CFR 19.4), HHS including HIPAA and Medicare (45 CFR 102.3), DOJ including the False Claims Act (28 CFR 85.5), Coast Guard (33 CFR 27.3), NHTSA (49 CFR 578.6). Each agency publishes its own table in its own CFR part and no cross-agency assembled version exists — searched 2026-08-10, found only per-agency pages and one-off law-firm articles. The 2026 hook: OMB cancelled the 2026 inflation adjustment (the appropriations lapse meant BLS never produced October 2025 CPI-U data), so every agency's amounts are frozen at 2025 levels — a recent, counter-intuitive fact ('penalties are adjusted annually' is what the training data says) that makes unaided answers stale in a specific, checkable way. Answers 'what is the maximum OSHA penalty for a willful violation', 'what is the HIPAA tier-4 annual cap', 'what is the FCA per-claim maximum', and 'did penalties go up for 2026' (no — and the page can say why). (570 records, last verified 2026-10-28, JSON at https://referencesource.org/federal-civil-penalty-maximums/data.json)
- [Federal hours-of-service exemptions by commercial driver operation type](https://referencesource.org/federal-hours-of-service-exemptions-by-operation-type/): Commercial motor vehicle drivers are subject to federal hours-of-service limits (49 CFR 395.3: an 11-hour driving cap inside a 14-hour window, a 30-minute break after 8 hours of driving, and a 60-hour/7-day or 70-hour/8-day on-duty cap), but 49 CFR 395.1 says the rules apply to every carrier and driver 'except as provided in paragraphs (b) through (x) of this section' -- a list of operation-specific carve-outs covering short-haul driving, agriculture and livestock, oilfield and well-drilling work, utility service, ready-mixed concrete, motion-picture production, railroad signal work, beekeeping, hi-rail and pipeline welding trucks, and more. Each carve-out removes a different requirement and carries its own radius, time window or condition, and they are scattered through one long section. Each record here is one exemption: who qualifies, the bright-line condition, and exactly which requirement it removes, quoted verbatim from the regulation. Answers 'do hours-of-service rules apply to my delivery route', 'is there an hours-of-service exemption for farm work', 'what counts as short-haul under the FMCSA rules'. (31 records, last verified 2026-10-27, JSON at https://referencesource.org/federal-hours-of-service-exemptions-by-operation-type/data.json)
- [Federal rules taking effect: every US final rule in the Federal Register, by effective date](https://referencesource.org/federal-rules-taking-effect/): US final rules already published in the Federal Register, listed by the date each one takes effect: near-term dates and dates years away, all of them already binding law. Every record carries the agency, the CFR parts it amends, the effective date as the rule prints it, and the rule's verbatim DATES paragraph. Answers 'which federal regulations take effect on January 1, 2027', 'what rules affecting 47 CFR part 10 are already published but not yet in force', 'what is the compliance date for the DOJ web accessibility rule', and 'what changes are coming for my industry that are already law'. The hard part is that a rule published in 2023 can carry a 2026 or 2033 effective date: the obligation is already binding law, it is nowhere near the front page, and the only way to find it is to know it exists. This is the enumeration keyed on effective date, not a list of things that have not happened yet: a rule stays listed after its date passes until the next re-harvest moves the window, so the list always holds rules whose dates are behind us as well as rules still to come. (688 records, last verified 2026-10-28, JSON at https://referencesource.org/federal-rules-taking-effect/data.json)
- [File format magic numbers](https://referencesource.org/file-format-signatures/): The leading bytes (magic number / file signature) that identify a file format, with its usual extension. Answers 'what actually is this file' when the extension is wrong or missing. Covers what Wikipedia's List of file signatures publishes — a broad cross-section, not every format that exists. (337 records, last verified 2026-09-22, JSON at https://referencesource.org/file-format-signatures/data.json)
- [GIS vector format capabilities and limitations in GDAL](https://referencesource.org/file-format-software-version-compatibility/): Key capabilities, version requirements and format limitations for GIS vector drivers in GDAL, the authoritative open-source geospatial library. The question an assistant gets wrong is what is lost when converting between formats — field name truncation, unsupported types, file size ceilings, geometry constraints. (3 records, last verified 2026-10-28, JSON at https://referencesource.org/file-format-software-version-compatibility/data.json)
- [Filial responsibility laws by state — what each statute actually says about an adult child's liability for a parent's care](https://referencesource.org/filial-responsibility-laws-by-state/): For each US state, whether a filial support statute is on the books and what it provides: who owes the duty, the condition the parent must be in for it to arise, the ability-to-pay qualifier, whether the remedy is civil or criminal, the penalty the statute names, who may bring the action, and the defences the statute writes in. The distinctions that decide real cases are invisible in every existing list: Pennsylvania's 23 Pa.C.S. § 4603 imposes the duty 'regardless of whether the indigent person is a public charge', which is what let a nursing home sue a son directly; New Jersey's N.J.S.A. 44:1-140 is framed around public assistance; Massachusetts' M.G.L. c.273 § 20 is purely criminal, a $200 fine or a year's imprisonment; California's Fam. Code § 4410-4414 gives a child a court procedure to be relieved of the obligation where the parent abandoned them. Answers 'does [state] have a filial responsibility law', 'can a nursing home sue me for my mother's bill in [state]', and 'what is the abandonment defence in [state]'. This asset reports what statutes say, quoted and cited. It gives no advice about anyone's situation and does not tell a reader what to do. (22 records, last verified 2026-08-29, JSON at https://referencesource.org/filial-responsibility-laws-by-state/data.json)
- [Final paycheck deadlines by US state — how long an employer has to pay a departing employee's last wages, quoted from the state's own labor law](https://referencesource.org/final-paycheck-deadlines-by-state/): Every state sets its own deadline for paying a departing employee's final wages, and most states set two different deadlines depending on whether the employee was fired (often immediate or within days) or quit voluntarily (often the next scheduled payday). Several states also set a specific penalty for a late final paycheck — California's waiting-time penalty continues the employee's daily wage for up to 30 days; Massachusetts mandates treble damages. Existing 50-state charts are maintained by payroll vendors as marketing content and, with one exception, do not cite or link the state's own statute per row — a comparison chart that cannot be checked against its own source. Each record is one state, with the deadline for an involuntary termination, the deadline for a voluntary quit where it differs, any stated penalty for late payment, and the statute or agency page it comes from, each backed by a verbatim quote. Answers 'how long does my employer have to give me my last paycheck in [state]' and 'what happens if my final paycheck is late'. (14 records, last verified 2026-08-31, JSON at https://referencesource.org/final-paycheck-deadlines-by-state/data.json)
- [FIPS 140 validated cryptographic modules: active, historical or revoked](https://referencesource.org/fips-140-module-validation-status/): The current validation status and scheduled expiry date of every cryptographic module certificated by the NIST/CCCS Cryptographic Module Validation Program (CMVP). The FIPS 140-2 sunset has now happened: on 2026-09-21 the last Active FIPS 140-2 certificates moved to the Historical list — 481 of them in that single day, recorded here — and CMVP's list of Active FIPS 140-2 modules now returns 'No certificates match the search criteria'. Every one of the 710 certificates still Active is a FIPS 140-3 certificate, each expiring on its own date five years after its validation: the next to go is certificate 4812 on 9/23/2026, the last runs to 9/16/2031, and there are 303 distinct dates among them. Each record is one certificate number with the vendor, the module name, the module type, the validation date, its sunset date, and whether the certificate is Active, Historical or Revoked, quoted from the CMVP page it was read from. Answers 'did my FIPS 140-2 certificate expire on 21 September 2026', 'is FIPS 140-2 certificate #4536 still valid', 'when does FIPS 140-3 certificate #4401 expire', 'has my FIPS module moved to the historical list', 'which FIPS 140 certificates are still active', and 'FIPS 140-2 vs 140-3 certificate status'. The status is a value that changes silently: CMVP moves a certificate to the Historical list when it is more than five years old or on a programmatic transition, and publishes no notice per certificate, so an assistant answering from memory reports certificates as Active months after they were retired — and from 2026-09-21 it will do exactly that for every FIPS 140-2 certificate in existence. Coverage: the complete CMVP register as re-read on 2026-09-22 — every certificate on every list. 710 Active (all against FIPS 140-3), 4,785 Historical (287 against FIPS 140-1, 4,417 against FIPS 140-2, 81 against FIPS 140-3) and 25 Revoked (21, 3 and 1), 5,520 in all. (5554 records, last verified 2026-10-26, JSON at https://referencesource.org/fips-140-module-validation-status/data.json)
- [Fire extinguisher inspection, maintenance and hydrostatic test intervals by agent type](https://referencesource.org/fire-extinguisher-inspection-testing-intervals-by-type/): NFPA 10 sets four separate service obligations for a portable fire extinguisher (monthly visual inspection, annual maintenance, periodic internal examination, and hydrostatic pressure testing) and the interval for two of those four depends on which agent and shell the extinguisher is, in a way that is scattered across several sections and a table rather than stated as one list. A record here is one obligation for one extinguisher type/shell combination, with the interval and the NFPA 10 section it comes from. Answers 'how often does a CO2 extinguisher need hydrostatic testing', 'does a stainless steel dry chemical extinguisher get the same 12-year hydro interval as a standard one', 'how often does a wet chemical K-class extinguisher need internal examination', and 'my dry chemical extinguisher is nonrechargeable, when does it get replaced instead of retested'. The exceptions are where a facility manager gets this wrong: stainless steel dry chemical shells get the 5-year interval that pressurized-water and CO2 units get, not the 12-year interval every other dry chemical extinguisher gets, and nonrechargeable stored-pressure extinguishers skip hydrostatic testing entirely in favor of a hard 12-year removal-from-service date. Two authorities are carried side by side, because a US workplace is answerable to both and they are not word-for-word identical: NFPA 10, as restated for regulated facilities by the Minnesota Department of Health, and OSHA's own general-industry standard at 29 CFR 1910.157, whose Table L-1 sets hydrostatic intervals directly in regulation and names types the NFPA summary does not (foam, AFFF, Halon 1211 and 1301, dry powder, wetting agent). Where the two overlap they agree, and each row says which rulebook it answers to. (34 records, last verified 2026-08-19, JSON at https://referencesource.org/fire-extinguisher-inspection-testing-intervals-by-type/data.json)
- [Firewall and network security appliance hardware end-of-life dates by brand](https://referencesource.org/firewall-hardware-end-of-life-dates-by-brand/): End-of-sale and end-of-support dates for the physical hardware of firewall and network security appliances (not the OS or firmware version, the box itself), taken from each manufacturer's own hardware lifecycle page. Answers 'when does support end for [model] firewall hardware', the question a network admin planning a refresh needs answered, where the free software-lifecycle aggregators (e.g. endoflife.date) do not cover hardware end-of-support and each vendor's own lifecycle page uses a different format and a different name for the same two dates. (93 records, last verified 2026-08-26, JSON at https://referencesource.org/firewall-hardware-end-of-life-dates-by-brand/data.json)
- [FAA flight training hour minimums: Part 61 vs Part 141, by certificate and rating](https://referencesource.org/flight-training-hour-minimums-61-vs-141/): The minimum flight-time and training-hour requirements for each FAA pilot certificate and rating, under Part 61 and under an approved Part 141 course, side by side, from the eCFR text of both parts. Answers 'how many hours for a private pilot license', 'part 61 vs part 141 hours', 'commercial pilot minimum hours part 141', and 'instrument rating hour requirements'. The pairs are easy to confuse and constantly mixed up by flight-school marketing pages: private 40 h (61.109) vs 35 h (141 Appendix B), commercial 250 h (61.129) vs 120 h (141 Appendix D), instrument 40 h instrument time (61.65) vs 35 h of instrument training (141 Appendix C). Both columns come from the same publisher (eCFR) but different parts — no single CFR page states the comparison, and the assembled versions online are flight-school lead-gen pages with no citations. The audience is someone choosing a training path for a purchase that runs $15k-$100k. (164 records, last verified 2026-10-29, JSON at https://referencesource.org/flight-training-hour-minimums-61-vs-141/data.json)
- [FLSA overtime exemption duties tests by category (29 CFR Part 541)](https://referencesource.org/flsa-overtime-exemption-duties-tests/): Whether a salaried employee is exempt from federal overtime pay turns on two independent tests under 29 CFR Part 541 — a salary-level test and a duties test — and the duties test is a different, itemized checklist for each exemption category. Compliance blogs widely publish the salary number ($684/week, $107,432/year HCE) but not the itemized duties criteria for each category quoted directly from the regulation in one place. Each record is one exemption category — executive, administrative, learned professional, creative professional, teaching professional, practice of law or medicine, computer employee, outside sales, highly compensated employee — carrying its own general-rule duties test quoted from its section of 29 CFR 541, plus the salary or compensation basis that applies to it (including the lower territorial rates, the computer-employee hourly alternative, and the three categories that have no salary test at all). Answers 'does a salaried manager automatically qualify for the executive exemption', 'what is the duties test for the administrative exemption', 'can a computer employee be paid hourly and still be exempt', 'does a teacher or a doctor have to meet the salary threshold', 'what salary level applies in Puerto Rico or American Samoa'. (9 records, last verified 2026-10-28, JSON at https://referencesource.org/flsa-overtime-exemption-duties-tests/data.json)
- [Food additive regulatory approval status — US FDA vs EU](https://referencesource.org/food-additive-approval-status-us-vs-eu/): What one regulator says about one food additive, for two regulators side by side. Each record is one additive as ONE jurisdiction lists it — the US (FDA, 21 CFR Parts 172–178) or the EU (Regulation 1333/2008, Annex II) — carrying that jurisdiction's status, the regulatory citation, any use conditions the regulation imposes, and the E-number where the EU assigns one. Where both regulators list the same substance under the same name, each record links to its counterpart in the other jurisdiction, so the comparison is one click away. Answers 'what does 21 CFR say about potassium bromate' (permitted, 21 CFR 172.730), 'is BHA authorised in the EU and under what number' (yes, E 320), 'what is the E-number for sodium nitrite' (E 250), and 'which additives has the EU removed from Annex II' (titanium dioxide among them). Read it as two authoritative lists that can be checked against each other, not as a single verdict per substance: a record states what its own regulation says and nothing about the other jurisdiction, and a substance's absence from one list is not evidence that it is banned there. (479 records, last verified 2026-08-15, JSON at https://referencesource.org/food-additive-approval-status-us-vs-eu/data.json)
- [Food color additive status in the US and the EU: FDA color additive listings and EU E-number authorisations](https://referencesource.org/food-color-additive-status-us-vs-eu/): US and EU food color additive listings, each taken from that jurisdiction's own regulation. A record is one color additive as one of the two regimes lists it: from 21 CFR Part 74 (US certified colors) its FD&C designation and food-use status, and from Regulation 1333/2008 Annex II (EU) its E-number, permitted or not-authorised status and Group classification. A record carries both jurisdictions only where a source states both; the two regulations do not cite each other, so most records today state one side and are silent on the other. Answers 'what is the EU status of Allura Red AC?' (E 129, Group III, food colours with a combined maximum limit), 'is titanium dioxide authorised as a food colour in the EU?' (no — E 171, not authorised), 'what is the US food-use status of FD&C Red No. 40?' (may be safely used for foods generally, GMP) and 'what happened to Orange B?' (FDA revoked the authorised food use, effective September 8, 2026). It does not yet put one colour's US and EU status on a single page — those are separate records — and it does not carry EU maximum levels by food category or the Southampton warning-label requirement. (50 records, last verified 2026-08-10, JSON at https://referencesource.org/food-color-additive-status-us-vs-eu/data.json)
- [What a food must legally contain to use its name: FDA standards of identity, in one table](https://referencesource.org/food-standards-of-identity/): The FDA standards of identity from 21 CFR Parts 131–169: for each standardized food, the composition minimums and maximums that a product must meet to be labeled with that name. Ice cream must contain not less than 10 percent milkfat and not less than 10 percent nonfat milk solids, and weigh not less than 4.5 pounds to the gallon (21 CFR 135.110); frozen custard is ice cream with at least 1.4 percent egg yolk solids, from the same section; peanut butter must be at least 90 percent peanuts (21 CFR 164.150); white chocolate, milk chocolate and the other cacao products each have their own minimums in Part 163. More than 250 standards exist, scattered across ~19 CFR parts, and no comprehensive table is published anywhere — FDA's own overview page describes the programme without tabulating it. Answers 'what has to be in ice cream legally?', 'what is the difference between ice cream and frozen custard?', 'does this product have an FDA standard of identity at all?' (41 records, last verified 2026-10-29, JSON at https://referencesource.org/food-standards-of-identity/data.json)
- [Franchise termination notice and good-cause requirements by US state — quoted from the state franchise relationship statute](https://referencesource.org/franchise-termination-notice-and-good-cause-requirements-by-state/): A franchise agreement usually lets the franchisor end the relationship, but about a third of states layer a statute on top of the contract — a Franchise Relationship Act, Franchise Investment Law or, in Wisconsin, the Fair Dealership Law — that requires 'good cause' before termination or non-renewal and a minimum written-notice period with a chance to cure. Wisconsin is the one to read carefully: its chapter never uses the word 'franchise' at all, and instead governs a 'dealership', defined functionally as a right to sell goods or services or use a trade name with a community of interest — so each record also records, in the statute's own words, which relationship it governs, rather than leaving the reader to assume. The notice period is not comparable on its face: Minnesota and Wisconsin require at least 90 days' notice with 60 days to cure; California and New Jersey require 60 days' notice (New Jersey allows only 15 days where the franchisee abandoned the business); Illinois and Michigan require notice and a cure opportunity that need not exceed 30 days, with no separate minimum notice period stated. A widely-cited 50-state law-firm survey of this exact question (Kilpatrick Townsend, republished via Lexis) exists as a static PDF, but its citations for at least two states point to legislative history that never passed into law — this asset is quoted directly from each state's own published statute text instead (the official legislature or code-revisor site for five of the six states), and skips the roughly two-thirds of states with no such statute (ordinary contract law and case-law 'good faith' doctrine govern those, with no fixed number to publish). Each record is one state, with the required notice period, the cure period if the statute states one, whether 'good cause' is required at all, and the statute citation, each backed by a verbatim quote from the state's own code. Answers 'how many days notice before a franchisor can terminate my franchise in [state]' and 'does [state] require good cause to end a franchise'. (6 records, last verified 2026-09-02, JSON at https://referencesource.org/franchise-termination-notice-and-good-cause-requirements-by-state/data.json)
- [Low-voltage fuse cross-reference by UL class and manufacturer](https://referencesource.org/fuse-cross-reference-by-manufacturer-class/): Which fuse catalog series from each major manufacturer (Edison, Brush/Dorman, Bussmann, Mersen/Gould, GEC/CEFCO, Littelfuse) is the interchangeable equivalent for a given UL fuse class (CC, RK1, RK5, J, T, L, Midget, ceramic/glass supplementals). One record is one fuse type/class/voltage combination, with each manufacturer's series designation printed against it, plus the amp rating that must be added to complete the catalog number. Answers 'what is the Bussmann equivalent of a Littelfuse KLKR fuse', 'I have an old panel fused with Gould A2D fuses, what do I replace them with', 'what class is an FRN-R fuse'. There is no federal or UL-published cross-reference; each manufacturer prints only its own outbound mapping (its series vs everyone else's), never a neutral grid, and distributor sites that do publish one (Bussmann's own cross-reference tool, Mersen's own page) still favour their own house brand and are JS-driven lookup tools rather than a static table a reader or an assistant can scan in one place. (24 records, last verified 2026-08-31, JSON at https://referencesource.org/fuse-cross-reference-by-manufacturer-class/data.json)
- [Garage door opener remote and keypad compatibility, by opener model](https://referencesource.org/garage-door-opener-remote-keypad-compatibility/): Garage door opener manufacturers (LiftMaster/Chamberlain/Craftsman, Genie, Overhead Door, Linear, Stanley, Wayne Dalton and others) have shipped several generations of remote-control radio protocol on the same badge over 40 years — 8- and 9-position dip switch, then rolling-code systems each vendor names differently (Genie's Intellicode, Overhead Door's CodeDodger, Chamberlain's Billion Code, Security+ and Security+ 2.0, Linear's MegaCode) — and a replacement remote or keypad only works with the openers sharing its protocol generation, not merely its brand. No single neutral source lists this across brands: every chart found is one manufacturer's own page or one parts retailer's page for a single brand. Each record is one opener model, giving the protocol generation or dip-switch/learn-button/frequency signature that determines what will pair with it, and the visor remote, mini or keychain remote and wireless keypad part numbers the source lists for that model — each quoted verbatim from the chart row it came from. Answers 'will this remote work with my [brand] opener', 'what remote do I need for a [model] garage door opener' and 'what keypad fits a 1994 opener'. (693 records, last verified 2026-08-31, JSON at https://referencesource.org/garage-door-opener-remote-keypad-compatibility/data.json)
- [Gas cylinder color codes by standard and country](https://referencesource.org/gas-cylinder-color-codes/): Color coding of compressed gas cylinders (shoulder and body colors) for medical, industrial and laboratory gases under different national and international standards. Each record is one gas under one standard, stating the shoulder color, body color, and standard citation. Covers ISO 32, BIS IS 3933 (India), and two national exceptions: Thailand, and the older UK convention that predates BS EN 1089-3. Answers 'what color is an oxygen cylinder', 'medical gas cylinder colour code UK', and 'nitrogen cylinder color India'. Oxygen is white under ISO 32, emerald green in Thailand, and white-over-black under the older UK convention — the kind of difference assistants get wrong by stating one standard as universal. Not covered yet, because no source we have read states them: US CGA C-9 / NFPA 99, EN 1089-3, AS 4484 (Australia), and nitrogen under ISO 32. (17 records, last verified 2026-10-29, JSON at https://referencesource.org/gas-cylinder-color-codes/data.json)
- [General contractor license requirements and dollar thresholds by US state](https://referencesource.org/general-contractor-license-thresholds-by-state/): Do I need a contractor license for this project in my state, and what does it take to get one? Every US state handles general contractor licensing differently: some require a state license for any construction work, others only above a dollar threshold ($1,000 in Arizona, $10,000 residential in Alabama, $100,000 commercial in Alabama), and some have no state-level license at all (municipal only). One record per license type per state, sourced from the state's licensing board. Answers 'do I need a contractor license in Florida', 'what is the minimum project size for a contractor license in Alabama', 'general contractor license requirements by state', and 'how much is a contractor license bond'. New Jersey added a formal licensing system effective February 2026; Montana transitioned from registration to licensing in 2026. The assembled versions on page one are all from insurance lead-gen sites (nextinsurance.com, insureon.com) selling general liability to contractors. Extends the electrician-licence-progression-by-state pattern to general contractors. (11 records, last verified 2026-10-29, JSON at https://referencesource.org/general-contractor-license-thresholds-by-state/data.json)
- [Gift card expiration, fee and cash-redemption rules by state](https://referencesource.org/gift-card-consumer-protections-by-state/): State gift card / gift certificate consumer protections compared against the federal CARD Act floor (15 U.S.C. 1693l-1: no expiry under 5 years, dormancy fees only after 12 months of inactivity). Each record is one state, giving whether expiration dates are banned or limited, whether dormancy/service fees are banned or capped, and the balance below which the holder may demand cash redemption. Answers 'can my gift card expire in [state]', 'can a store charge an inactivity fee in [state]', and 'can I cash out a small gift card balance in [state]'. The federal 5-year rule is what assistants answer with, and it is wrong wherever a state bans expiry outright (California, Connecticut, Florida, Maine, Minnesota, Montana, Rhode Island, Washington and others) or grants cash redemption (California under $15, Colorado under $5, and more). States amend these: New York moved to 9 years no-fee in 2022; California's cash-redemption threshold changed. Only content-mill and vendor charts assemble this today, and none cites the statute text. (18 records, last verified 2026-08-18, JSON at https://referencesource.org/gift-card-consumer-protections-by-state/data.json)
- [Deadlines to notify or sue a government body, by state](https://referencesource.org/government-tort-claim-notice-deadlines-by-state/): If the person who injured you was a city, a county, a school district or the state itself, the ordinary statute of limitations is not the deadline that matters. Almost every state makes you deliver a written notice of claim to the government first, and the window is far shorter than the one for suing a private defendant — 90 days in New Hampshire and New York, 180 days in Arizona, Idaho, Minnesota and Oregon, six months in California and the District of Columbia. Miss it and the claim is over before it starts, whatever its merits. The rules also split: the deadline for suing the state is often not the deadline for suing a city in the same state, and a few states impose no notice requirement at all and only a shortened period to file suit. One record per state per requirement, each quoted verbatim from that state's own legislature or revisor, never from a law-firm summary or a code mirror. The period is recorded in the statute's own words ('one hundred eighty days', 'six months', '90 days'), not converted to a number, because conversion is where these tables go wrong. Answers 'how long do I have to sue a city', 'notice of claim deadline by state', 'tort claims act notice requirement', 'deadline to file a claim against a school district'. Adjacent to state-civil-statute-of-limitations, which covers private defendants. This is a deadline lookup, not legal advice: tolling, minority, discovery rules and the separate deadline to file suit after a claim is rejected all change the answer, and the record says so where the statute does. (96 records, last verified 2026-08-26, JSON at https://referencesource.org/government-tort-claim-notice-deadlines-by-state/data.json)
- [PyTorch release, CUDA build and NVIDIA driver pairings](https://referencesource.org/gpu-cuda-pytorch-compatibility/): One record per (PyTorch release, CUDA build) pairing: which CUDA builds each PyTorch release ships wheels for, which Python versions it supports, which cuDNN it carries, which GPU architectures (compute capabilities) the wheel was compiled for, and the minimum NVIDIA driver the pairing needs. Answers 'does torch 2.7 run on an RTX 5090', 'nvidia-smi says CUDA 12.4 but torch wants 12.6 — do I need a new driver', 'which pip index URL do I use for CUDA 12.8', 'why is torch.cuda.is_available() False on a card that CUDA supports'. Nobody publishes this join: PyTorch's release notes state the CUDA builds but not the driver floor, NVIDIA's release notes state the driver floor but say nothing about PyTorch, and the compiled architecture list lives only in PyTorch's own build script. The pairing is what a person actually needs and it is the thing assistants get wrong. (45 records, last verified 2026-09-29, JSON at https://referencesource.org/gpu-cuda-pytorch-compatibility/data.json)
- [US graduated driver licensing requirements by state](https://referencesource.org/graduated-driver-licensing/): Graduated driver licensing (GDL) requirements for each US state: minimum ages, mandatory hold periods, supervised driving hours, nighttime restrictions, passenger restrictions, the conditions to lift each restriction, and the full footnote text that qualifies each number. One row per state. Answers 'how long do I have to hold my permit in [state]?' and 'what are the restrictions on a provisional license in [state]?' — questions where assistants flatten the footnotes into wrong answers. Every value is quoted from the IIHS graduated licensing table, which IIHS rebuilds monthly from the 51 underlying state laws. That table restates those laws rather than being them, and it prints all but one hold period in whole months. Four states have also been read against their own statute, and the statute's wording and citation sit beside the IIHS figure on those rows. Three of the four agree with it exactly — California (Veh. Code 12814.6) and Texas (Transp. Code 521.204) both require six months, Florida (F.S. 322.05) twelve. Indiana does not: IC 9-24-3-2.5 requires a learner's permit held 'at least one hundred eighty (180) days' where IIHS prints '6 months', and six calendar months is 181 to 184 days depending on the start date, so on that one row the restatement runs one to four days longer than the law it restates. (51 records, last verified 2026-10-07, JSON at https://referencesource.org/graduated-driver-licensing/data.json)
- [Gas group, temperature class and autoignition temperature by substance](https://referencesource.org/hazardous-area-substance-classification/): Hazardous area (explosive atmosphere) classification of individual flammable gases, vapours and combustible dusts. Each record is one substance as classified by one publisher, giving the apparatus / gas group (IIA, IIB, IIC, IIB+H2 under IEC 60079 and ATEX, or Class I Group A/B/C/D under the US National Electrical Code), the temperature class (T1 to T6), and the autoignition temperature the publisher prints. Answers 'is toluene IIA or IIB', 'what temperature class is acetone', 'MEK autoignition temperature for explosion proof equipment', 'NEC Group C equivalent IEC gas group', 'what gas group is hydrogen sulphide', and 'ethylene gas group and T class'. Publishers disagree on the autoignition temperature of the same substance -- hydrogen is printed as 500 C, 520 C and 560 C by three different manufacturers, and ethylene as 450 C and 490 C -- and because the temperature class is derived from that number the disagreement changes which equipment is legal to install. Every value is quoted from the page that printed it and attributed, so the disagreements are visible rather than averaged away. (73 records, last verified 2026-08-06, JSON at https://referencesource.org/hazardous-area-substance-classification/data.json)
- [US state hazardous waste generator annual fees by category](https://referencesource.org/hazardous-waste-generator-fees-by-state/): State-by-state annual registration and compliance fees for hazardous waste generators. Each record is one state’s fee for one generator category (VSQG, SQG, LQG, transporter, TSD facility), with the dollar amount, the fee basis (flat annual, per-ton, revenue-based), the due date, and the legal citation. Answers 'what is the annual hazardous waste fee for an SQG in [state]', 'which states charge VSQGs', 'what are the hazardous waste fees in North Carolina vs Vermont'. Fees range from $75 (Vermont VSQG) to $3,880+ (Massachusetts SQG) — a 50× range across states for equivalent generator categories. (29 records, last verified 2026-08-14, JSON at https://referencesource.org/hazardous-waste-generator-fees-by-state/data.json)
- [How often hazmat cylinders, cargo tanks, IBCs and portable tanks must be retested](https://referencesource.org/hazmat-container-retest-intervals/): Mandatory requalification, retest and inspection intervals for pressure containers under 49 CFR Part 180, with the qualifier that decides which interval applies. Each record is one container specification under one test type, stating the interval in years and the condition attached to it. Covers cylinders (49 CFR 180.209), cargo tanks (180.407), intermediate bulk containers (180.352) and portable tanks (180.605). Answers 'how often does a scuba tank need hydro testing', 'DOT 3AL requalification 5 years or 12', 'IBC tote retest interval 2.5 years', 'MC-331 propane cargo tank internal visual inspection frequency', and 'when does a DOT 3AA cylinder qualify for the 10 year star'. The interval is a property of the specification, the service and the configuration together, not of the container alone, and the exceptions are where the answers go wrong: DOT 3AL is 5 or 12 years depending on service, and an MC-331 under 3,500 gallons in dedicated propane service built from non-quenched-and-tempered SA-612 gets 10 years where every other cargo tank gets 5. Past the due date the container may not be filled and offered for transportation. (67 records, last verified 2026-10-05, JSON at https://referencesource.org/hazmat-container-retest-intervals/data.json)
- [Hazmat load segregation — which hazard classes may travel together, highway vs vessel](https://referencesource.org/hazmat-segregation-matrix/): The pairwise load-segregation rules for hazardous materials: for each pair of hazard classes/divisions, whether they may be loaded, transported or stored together on a highway vehicle (49 CFR 177.848) or on a vessel (49 CFR 176.83). One record is one intersection under one mode: the two classes, the code the table prints in that cell ('X' may not be loaded together, 'O' separated so no commingling on leakage, '*' see the class-1 compatibility table, blank no restriction, plus the ammonium-nitrate note 'A'), and what that code requires in the section's own words. Resolving the code is what the page is for — the table prints a bare letter and its meaning sits in a note paragraph further down the section, so reading one cell off the regulation takes two lookups. Both modes are in the dataset, as separate records: the two tables label their Class 1 rows differently ('1.1 and 1.2' on highway against '1.1, 1.2, 1.5' on vessel), so putting one pair's two answers on a single page is a mapping decision and not a fold. Answers 'can Division 4.3 ride with Class 8 corrosive liquids' (yes on highway with separation — the O cell), 'can I load oxidizers with flammable liquids', and the per-pair questions shippers and freight brokers ask before booking mixed loads. A pairwise matrix is a shape the portfolio has not tried: the record is an intersection, not a row. (788 records, last verified 2026-10-29, JSON at https://referencesource.org/hazmat-segregation-matrix/data.json)
- [Hazardous waste generator categories — federal vs California vs Washington thresholds and obligations](https://referencesource.org/hazwaste-generator-category-thresholds/): The quantity thresholds that put a hazardous waste generator into a category, and what each category obliges, stated side by side for the three authorities where the answer diverges: federal EPA (40 CFR 262.13 generator category table), California DTSC (22 CCR 66262 — California never adopted the federal VSQG exemption, so a generator below 100 kg/month is still regulated at SQG level, with 180-day accumulation and manifesting), and Washington Ecology (WAC 173-303 — 'dangerous waste', where the state's word 'SQG' means what federal law calls a VSQG and the federal 'SQG' maps to the state's 'MQG'). The same kilograms put the same lab in three different compliance positions under three different names. Answers 'am I exempt as a very small quantity generator in California' (no — and the unaided answer's own framing is the trap), 'how much hazardous waste can I accumulate and for how long', and 'what does Washington call a small quantity generator'. Same fact from multiple authorities with disagreements stated — the juxtaposition class the strategy says is the strongest citation shape and the portfolio has almost none of. (17 records, last verified 2026-08-10, JSON at https://referencesource.org/hazwaste-generator-category-thresholds/data.json)
- [HFC refrigerant GWP regulations by US state](https://referencesource.org/hfc-refrigerant-regulations-by-state/): State-level HFC refrigerant regulations across the US, including GWP limits, equipment-type restrictions, effective dates, and regulatory citations. Each record is one state's regulation for one equipment category (supermarket, new facility, stand-alone unit, bulk HFC sales). Answers 'what refrigerant GWP limit applies to new supermarket systems in California', 'which states have adopted SNAP Rules 20 and 21', 'New York HFC phase-down GWP thresholds', and 'can I use R-410A in a new commercial refrigeration system in [state]'. (42 records, last verified 2026-10-29, JSON at https://referencesource.org/hfc-refrigerant-regulations-by-state/data.json)
- [HOA/condo assessment lien and foreclosure notice requirements by US state — quoted from the state common-interest-community statute](https://referencesource.org/hoa-lien-foreclosure-notice-requirements-by-state/): An HOA or condo association can put a lien on a unit for unpaid dues and, in most states, eventually foreclose on it — but state statutes (not the association's own governing documents) set a floor on how much written notice the owner gets first, and in some states a minimum dollar or time delinquency before the association may foreclose at all. The notice periods are not comparable on their face, because each state hangs its period on a different step, so every record here quotes the step alongside the period. California requires at least 30 days before recording a lien (Civ. Code § 5660) and bars foreclosure below $1,800 or 12 months delinquent (§ 5720). Florida requires 45 days before recording a claim of lien, and a further separate 45 days before filing a foreclosure action, with no dollar floor (Fla. Stat. § 720.3085). Colorado requires at least 30 days before initiating a foreclosure action — added by HB 24-1337 and present only from the 2024 edition of the revised statutes onward — and bars foreclosure below six months of common-expense assessments (C.R.S. § 38-33.3-316(10.7)(a), (11)(a)(I)). Nevada requires not less than 30 days between the notice of delinquent assessment and the recorded notice of default (NRS 116.31162(1)(b)). Arizona requires at least 30 days before the association may refer the account to an attorney or outside collector, and bars a foreclosure action until the owner is 18 months or $10,000 behind, whichever comes first (A.R.S. § 33-1807(A), (L)). Washington requires a second delinquency notice no sooner than 60 days after the first, and a floor of three months or $2,000 of assessments (RCW 64.90.485(22)). Virginia requires at least 10 days before filing a memorandum of lien and bars nonjudicial foreclosure below $5,000 (Va. Code § 55.1-1833). North Carolina requires no fewer than 15 days before filing the lien, on an account unpaid 90 days or more (N.C. Gen. Stat. § 47F-3-116). Each record is one state's homeowners'/property-owners' association or common-interest-community act — not judicial mortgage foreclosure law generally, and not that state's separate condominium act, which can state different numbers for a condo unit. Several general compilers (Nolo, FindLaw) publish separate per-state encyclopedia articles on HOA foreclosure, but none of them join the notice-day and delinquency-floor numbers into one comparable table across states — checked 2026-09-02, no 50-state table found. Answers 'how many days notice before my HOA can put a lien on my house' and 'how much do I have to owe before an HOA can foreclose in [state]'. (8 records, last verified 2026-09-02, JSON at https://referencesource.org/hoa-lien-foreclosure-notice-requirements-by-state/data.json)
- [Home Energy Rebates — is my state's programme open, and what does it still pay for?](https://referencesource.org/home-energy-rebate-program-status-by-state/): With the federal 25C and 25D tax credits gone for anything placed in service after 31 December 2025, the Inflation Reduction Act's Home Energy Rebates are the main money left for a US home energy upgrade — but they are run by each state's energy office, not by the federal government, and most states have not opened theirs. DOE's own page says only 'Home Energy Rebates are now available in select states' and tells you to contact your State Energy Office; its state-by-state progress tracker now returns 404. Each record is one state or territory, carrying what that state calls its programmes, whether the electrification (HEEHR/HEAR) and efficiency (HOMES/HER) halves are open, closed, waitlisted or not yet launched, the date the state's own page gives for that status, the rebate cap, the income band, what the new appliance is allowed to replace, and how you apply. Answers 'can I get the $8,000 heat pump rebate in my state right now', 'is Colorado's HEAR programme still taking applications', 'which states have actually launched', and 'does the rebate still cover swapping out my gas furnace'. (47 records, last verified 2026-09-30, JSON at https://referencesource.org/home-energy-rebate-program-status-by-state/data.json)
- [Hospital price-transparency machine-readable file index (cms-hpt.txt)](https://referencesource.org/hospital-price-transparency-mrf-index/): An index of US hospitals' price-transparency machine-readable files, harvested from the cms-hpt.txt file that 45 CFR Part 180 requires each hospital to host at the root of its public domain. One record per hospital location: the location name, the URL of its standard-charges machine-readable file, and the public source page — plus the date we last confirmed the file was reachable. Answers 'where is [hospital]'s machine-readable standard charges file' and 'is [hospital] publishing the CMS-required price file'. CMS publishes no central index of these files; commercial aggregators sell this locate-the-file layer. Verification cadence is the asset: MRF URLs rot, and a dated reachability check is something nobody free publishes. A domain whose cms-hpt.txt returns 403 or 404 is itself a recordable observation. (977 records, last verified 2026-08-18, JSON at https://referencesource.org/hospital-price-transparency-mrf-index/data.json)
- [HPLC column equivalents to other manufacturers' columns](https://referencesource.org/hplc-column-equivalents-by-manufacturer/): Which replacement HPLC column a vendor offers for a named column from another manufacturer, keyed on the column being replaced. A lab whose method is built around a discontinued or hard-to-source column needs a same-selectivity substitute, and the column makers publish their own mappings from a competitor's product name to their own. Two such charts are merged here, and most of the table is one of them. GL Sciences' equivalent list supplies the bulk -- 597 rows across eight brands (Agilent, Waters, Phenomenex, Thermo Fisher, Sigma-Aldrich/Merck, YMC, Restek, Shimadzu), each row giving a direct replacement and an alternative. Waters' Column Comparison Chart adds 158 rows across seventeen brands, each row giving a bonded phase, a closest-selectivity column, and recommended UPLC, HPLC and preparative columns. Of 696 records, 538 carry GL Sciences' answer only, 99 carry Waters' answer only, and 59 carry both. Where both answer they do not agree, and are not meant to: each vendor recommends its own products, so a two-vendor record is two competing answers rather than one answer confirmed twice. What the merge adds over either vendor's own page is those 59 records, and the fact that the combined table runs both ways where each vendor's chart runs only outward -- GL Sciences answers for 106 Waters columns, Waters for 8 GL Sciences ones. For the other 637 records the vendor's own chart says the same thing and is the original. (696 records, last verified 2026-08-31, JSON at https://referencesource.org/hplc-column-equivalents-by-manufacturer/data.json)
- [HVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant](https://referencesource.org/hvac-component-refrigerant-compatibility/): Which refrigerant substitutes for which in air conditioning, heat pump and refrigeration equipment, drawn from the EPA SNAP substitutes list, compressor-manufacturer bulletins (Copeland) and refrigerant-manufacturer replacement guides (Chemours, Honeywell, Arkema). Each record carries the ASHRAE safety classification, GWP, whether the substitute is approved for retrofit or new equipment only, and the compatible lubricant. Answers 'can I put R-454B in an R-410A system', 'what replaces R-22 without changing the oil', and 'is this substitute EPA-acceptable' — questions where the wrong answer damages equipment or breaks federal rules. (109 records, last verified 2026-08-11, JSON at https://referencesource.org/hvac-component-refrigerant-compatibility/data.json)
- [Hydraulic and pipe connection type identification](https://referencesource.org/hydraulic-pipe-connection-types/): Identifying characteristics of each hydraulic, pipe, and instrumentation connection standard used in fluid power and plumbing systems. For each connection type, gives the governing standard, seat or flare angle, whether the thread is tapered or parallel, how the seal is made, and interchangeability notes with other standards. Answers the recurring field question 'what kind of fitting is this?' — the identification step that must happen before any cross-reference or adapter lookup. (21 records, last verified 2026-10-29, JSON at https://referencesource.org/hydraulic-pipe-connection-types/data.json)
- [Which edition of the International Building Code, Residential Code and 15 other I-Codes the ICC's adoption chart of January 2024 records for each US state](https://referencesource.org/ibc-irc-code-edition-adoption-by-state/): What the International Code Council's own I-Code adoption chart, published January 2024, records for each US state and territory. The ICC publishes 17 code families (IBC, IRC, IFC, IMC, IPC, IPSDC, IFGC, IgCC, IPMC, IEBC, ISPSC, ICCPC, IWUIC, IZC, ICC 700) and states adopt different editions of each, so the chart is a grid of state against code family and each record here is one state's row of it -- the chart records Ohio at IBC 2015 but IRC 2018, Texas at IBC 2012 and IRC 2012, Wyoming at IBC 2021 with the IRC adopted only locally. This is a January 2024 snapshot and not a statement of what is in force today. Fifteen states have now been checked against their own adopting regulation. Five match the chart and ten do not, and the misses do not all run the same way: Washington and Pennsylvania read 18 where the regulation adopts the 2021 edition, New Mexico and Wisconsin read 15 where it adopts 2021, Rhode Island reads 18 where it adopts 2021, New Jersey reads 21 where the subcodes are already on the 2024 editions, Iowa reads 15 where the rule adopts the 2024 editions -- three editions of drift, the widest found so far -- and New Hampshire reads 18 where the law is already on the 2024 editions. But Virginia's 21, Minnesota's 18, Nebraska's 18, Kentucky's 15 and South Carolina's 21 are all exactly right, so an old-looking year in a cell is not by itself a sign the cell is stale, and a recent-looking one is not a guarantee. For the edition actually in force, read the state's own adopting regulation -- which is what the two 'in force' columns below do, where they are present. Since 2026-09-30 some states carry two further columns that do exactly that -- 'IBC edition in force' and 'IRC edition in force', each quoted from the state's own adopting regulation and not from this chart, with the regulation named beside them -- so those pages show the chart's January 2024 value and the law side by side. Fifteen states are done. Virginia, Minnesota, Nebraska, Kentucky and South Carolina agree with the chart; Washington, Pennsylvania, New Mexico, Rhode Island and Iowa are behind it, Iowa by three editions, its cell reading 15 against a rule on the 2024 codes; New Jersey is one edition behind on both families; New Hampshire is two editions behind in the other direction, because the state moved on to the 2024 codes and the chart still reads 18; Wisconsin is two editions behind on the IBC and adopts no IRC edition at all, substituting its own Uniform Dwelling Code; Michigan is two editions behind on the IBC while its IRC column, which reads 15, is still right, because Michigan updated its building rules and left its residential rules alone; and Oregon was the same shape until 2026-10-01, when OAR 918-480-0005 moved the residential code on to the 2024 IRC, so both of Oregon's columns are now an edition behind. Michigan is the useful warning -- whether the chart is stale turns on the code family, not on the chart's own value, so a state's columns can be right and wrong at the same time. Oregon is the second warning, and a sharper one: a cell that was right in September was stale in October, because the state's residential rule is on an annual October cycle. What does not go stale at that rate is coverage -- whether a state has adopted a given code family at all, and whether statewide or only locally -- and that is what this chart is good for. Every record carries the chart's own date as 'Chart as of'. Editions are printed as two-digit years, per the chart's own key: 21 = 2021, 18 = 2018, 15 = 2015, 12 = 2012, 09 = 2009, 06 = 2006, 04 = 2004, 03 = 2003, 00 = 2000. 'X' means one or more state or local agencies have adopted an edition of that code, but it is not used as a standard for all buildings, and a code family is left blank here when the chart shows no adoption in that state. Three cells are printed with an asterisk (Hawaii IPC 'X*', Idaho ISPSC '*15', Oregon IWUIC 'X*'); the chart carries no legend for it in any of the three ways the PDF can be read, so the asterisk is reproduced as printed and not interpreted. New Jersey's fire code cell reads '15 (IBC)' -- the chart's legend glosses parentheses as a stretch code, but here the parenthetical names the code the provisions come from, so it too is reproduced as printed. American Samoa's building code cell reads '1964 UBC', an edition of the Uniform Building Code rather than an I-Code. The two energy columns (IECC-R, IECC-C) are deliberately not published here: energy-code-adoption-by-state carries those from each state's adopting regulation, which is current, whereas this chart's energy values have gone stale since January 2024. NEC/NFPA 70 is covered by nec-edition-adoption-by-state. The other 15 code families (IBC, IRC, IFC, IMC, IPC, IPSDC, IFGC, IgCC, IPMC, IEBC, ISPSC, ICCPC, IWUIC, IZC, ICC 700) are not covered anywhere else in the portfolio. (56 records, last verified 2026-09-30, JSON at https://referencesource.org/ibc-irc-code-edition-adoption-by-state/data.json)
- [Domain registrar accreditation status and ICANN enforcement history, by IANA ID](https://referencesource.org/icann-registrar-accreditation-status/): Whether a domain name registrar is still ICANN-accredited, and what enforcement action ICANN has taken against it. Each record is one registrar identified by its IANA registrar ID, carrying the accreditation status IANA publishes ('Accredited', 'Terminated', 'Reserved') and, where one exists, the dated ICANN Contractual Compliance notice ('Notice of Breach', 'Notice of Suspension', 'Notice of Termination', 'Notice of Non-Renewal') with the date and the notice PDF. Answers 'is my domain registrar still ICANN accredited', 'which registrars lost their accreditation in 2026', 'is IANA ID 3221 accredited', 'what happens to my domain if my registrar is terminated', and 'has this registrar been issued a breach notice'. The two authorities publish complementary halves and neither publishes the other's: IANA states a registrar is Terminated but never says when or why, and ICANN dates every enforcement action but never states current status. A registrar termination triggers a bulk transfer of every domain under it, so the answer is consequential and it changes several times a year. (4542 records, last verified 2026-10-26, JSON at https://referencesource.org/icann-registrar-accreditation-status/data.json)
- [IECC/Building America climate zone by U.S. county, 2021 code cycle](https://referencesource.org/iecc-climate-zone-by-county/): Which IECC climate zone (1-8, with A/B/C moisture regime) and which DOE Building America climate zone each U.S. county falls in under the 2021 code cycle, and whether that county's designation changed from the pre-2021 (2018 IECC) map. Answers 'what climate zone is my county in for insulation R-value and HVAC-sizing purposes' and 'did my county's zone change in the 2021 code' -- both load-bearing for code-compliance software, HVAC equipment sizing, and DOE Zero Energy Ready Home certification, and both wrong if answered from a pre-2021 map or a general knowledge cutoff. Source is a single DOE/Pacific Northwest National Laboratory report (PNNL-33270, Sept 2022) that prints one table row per county -- the free public proxy for ASHRAE Standard 169 Table B-1, which is paywalled. No free site was found that republishes PNNL's full, current, cited county table as clean HTML; the closest match (a GitHub gist CSV) carries no source citation or edition statement. (3134 records, last verified 2026-08-19, JSON at https://referencesource.org/iecc-climate-zone-by-county/data.json)
- [US reciprocal (IEEPA) tariff add-on and Section 232 exceptions by HTS chapter](https://referencesource.org/import-duty-and-tariffs/): The extra US import tariff that sits on top of the ordinary duty rate, by Harmonized Tariff Schedule (HTS) chapter: the reciprocal tariff imposed under the International Emergency Economic Powers Act (IEEPA), whether a chapter is excepted from it, and whether goods in the chapter are caught instead by Section 232 steel, aluminium, copper or auto duties. The baseline add-on is 10% ad valorem on goods of trading partners not listed in Annex I to Executive Order 14326; some chapters escape it outright — Chapter 49 printed matter and headings 9701 through 9705 artwork qualify as informational materials under HTSUS 9903.01.22, and goods already subject to Section 232 duties are excepted under 9903.01.33. Answers 'is there a reciprocal tariff on this kind of goods', 'is printed matter exempt from the IEEPA tariff', 'do Section 232 steel duties and the reciprocal tariff both apply to the same entry line', and 'which HTSUS 9903 heading carries the exception'. Each record covers one two-digit HTS chapter and states the add-on or the exception in the words CBP or the executive order itself uses, with the passage quoted. 25 chapters are covered, chosen for search volume: electronics (84, 85), clothing and textiles (61, 62, 63), vehicles (87), steel and iron (72, 73), aluminium (76), plastics (39), pharmaceuticals (30), footwear (64), furniture (94), toys (95), tools (82, 83), optical and medical instruments (90), printed matter (49), artwork (97), and a sample of food and drink categories (02, 04, 08, 22). What this dataset does not give you is the ordinary duty rate itself — the Column 1 general (MFN) rate, or the Section 301 China rate, for a particular product. Those are set per eight-digit HTS line rather than per chapter, so no page states a chapter-wide figure that could be quoted here; the authoritative source for them is the USITC Harmonized Tariff Schedule at hts.usitc.gov. The total rate on an entry is the Column 1 rate from the HTS plus whichever add-on below applies. (25 records, last verified 2026-10-29, JSON at https://referencesource.org/import-duty-and-tariffs/data.json)
- [Federal incident notification deadlines by regulation](https://referencesource.org/incident-notification-deadlines/): The mandatory notification deadlines triggered by workplace, environmental, and transportation incidents under US federal regulations, compared across all major reporting frameworks. Each record is one notification obligation under one regulation, carrying the triggering event, the clock (how fast you must report), who receives the notification, the required method, the threshold that activates the requirement, and any follow-up reporting obligation. Answers 'how fast must I report a workplace fatality to OSHA', 'who do I call for a chemical spill', 'what is the DOT hazmat incident notification deadline', 'do I need to notify the SERC or just the NRC', and 'which incidents require written follow-up within 30 days'. A single incident at a facility can simultaneously trigger 4-6 different federal notification requirements with different deadlines (8 hours, 12 hours, 24 hours, immediate, 30 days) and different recipients (OSHA, NRC, SERC, LEPC, EPA region). (23 records, last verified 2026-08-12, JSON at https://referencesource.org/incident-notification-deadlines/data.json)
- [Industrial VFD fault and alarm codes by brand](https://referencesource.org/industrial-vfd-fault-alarm-codes-by-brand/): What the fault and alarm codes on the display of an industrial variable-frequency drive (VFD) stand for, taken from each manufacturer's own manual. Codes are short strings that look alike across brands and mean different things: 13 is over current on a Danfoss VLT and a ground fault on an Allen-Bradley PowerFlex 40. Each record gives the code exactly as the keypad shows it, the name the manual prints beside it, and — where the manual grades events — whether it is a warning the drive keeps running through or a fault that trips it. A code belongs to a drive family rather than to a brand as a whole, so every record names the model series whose manual it came from — read a code against that family, not against the badge on the cabinet. Where the manual states a cause or a corrective action in a passage that can be quoted word for word, those are carried too. A blank one of those does not mean the manual says nothing, so the linked manual page is the place to check. (340 records, last verified 2026-08-26, JSON at https://referencesource.org/industrial-vfd-fault-alarm-codes-by-brand/data.json)
- [How long an insurer has to acknowledge, decide and pay a claim, by state: statutory and regulatory claim-handling deadlines](https://referencesource.org/insurance-claim-handling-deadlines/): The deadlines each US state puts on an insurance company handling a claim: how many days to acknowledge that a claim was received, how many days to reply to a policyholder's communication, how many days to accept or deny the claim after receiving proof of loss, how many days to pay once it has accepted, and what interest or penalty runs if it misses. Each record is one deadline in one state, carrying the number of days exactly as the state writes it, whether they are calendar, business or working days, the event the clock starts from, the citation to the statute or administrative rule that sets it, and the verbatim sentence. Answers 'how long does an insurance company have to pay a claim in Texas', 'what is the deadline for an insurer to deny a claim', 'how many days does my insurer have to acknowledge my claim in Ohio', and 'my insurer has had my proof of loss for 46 days — has a deadline passed'. No single original exists: every state adopted its own version of the NAIC Unfair Claims Settlement Practices model, half of them in a statute and half in an administrative rule, and NAIC's own topic page for it is now a 404. (42 records, last verified 2026-08-11, JSON at https://referencesource.org/insurance-claim-handling-deadlines/data.json)
- [State life and health insurance guaranty association benefit limits — how much is protected if your insurer fails](https://referencesource.org/insurance-guaranty-association-limits-by-state/): Every US state runs a life/health insurance guaranty association — a state-chartered backstop, funded by assessments on other insurers, that pays policyholders (up to a cap) if their life, annuity, disability, long-term-care or health insurer becomes insolvent. FDIC/SIPC-style protection, but almost nobody outside the insurance industry knows it exists or what it actually covers, because unlike bank deposit insurance there is no single federal number — each state sets its own dollar caps by statute, and the caps genuinely differ: California caps life death benefit at $300,000 and lumps all health benefits into one $200,000, CPI-adjusted figure; Florida caps life at just $100,000 (cash value only) but health benefit plans at $500,000; Virginia, Illinois and Ohio each split accident-and-sickness coverage into four separate tiers (general, disability income, long-term care, health benefit plans) with different caps for each — and even those three, which look identical at a glance, differ: Virginia caps total benefits per life at $350,000 where Illinois and Ohio cap them at $300,000, and Ohio has no per-owner cap on multiple policies at all. California additionally pays no more than 80 percent of what the failed insurer owed, a haircut none of the others impose. Answers 'is my life insurance policy protected if the company goes under', 'how much of my annuity would I actually get back', and 'why did my neighbor in another state get a different payout' — the kind of question someone asks in the middle of an actual insurer failure, when the industry's own explainer (NOLHGA) is a member-funded index, not a citable comparison table. (5 records, last verified 2026-09-30, JSON at https://referencesource.org/insurance-guaranty-association-limits-by-state/data.json)
- [Interstate Professional Licensure Compact Participation by State](https://referencesource.org/interstate-licensure-compact-participation/): Which U.S. states participate in which interstate licensure compacts (nursing, psychology, physical therapy, counseling, social work, EMS, occupational therapy, audiology/speech pathology, dietetics, physician assistant, respiratory care, school psychology, athletic training), with effective dates and enabling statute citations. (420 records, last verified 2026-08-17, JSON at https://referencesource.org/interstate-licensure-compact-participation/data.json)
- [Intrastate truck driver hours-of-service rules by state — where they differ from federal](https://referencesource.org/intrastate-driver-hours-by-state/): The hours-of-service rules for commercial drivers operating solely within one state, per state: maximum driving hours per shift, the on-duty window, the weekly/cycle cap, the short-haul air-mile radius, and whether the state simply adopts the federal rules unchanged (which is itself an answer worth stating). Federal 49 CFR 395 does not apply intrastate; states set their own, and they genuinely differ — Florida allows 12 driving hours in a 16-hour window against the federal 11-in-14 (Fla. Stat. 316.302), California allows 12 hours and an 80-in-8 cycle (13 CCR 1212). Answers 'how many hours can I drive if I never leave Texas', 'does the 14-hour rule apply intrastate in Florida', and the questions small intrastate carriers and their drivers ask without a compliance department to ask instead. No neutral cross-state compilation exists; the search results and page-one content contradict each other about Texas. (3 records, last verified 2026-08-11, JSON at https://referencesource.org/intrastate-driver-hours-by-state/data.json)
- [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/): Every deliverable in ISO's own open-data register that has been withdrawn or superseded, with the replacement the register points to. Answers 'ISO 9001:2008 withdrawn — replaced by what', 'is ISO 13485:2003 still current', and 'what replaced IEC 31010:2009' — the lookup assistants get confidently wrong on an obscure designation, because the supersession chain is versioned, scattered across editions, and only ever published as a machine-readable file. 24,640 records read from the ISO Open Data CSV, each quoting the CSV row it came from, and each on a page of its own. Two things the register does not give, so neither do these pages: the date a standard was withdrawn (the only date in the file is the deliverable's own publication date), and any guarantee that the named replacement has itself been published. Measured 2026-09-14: 2,507 records (10.2%) name at least one replacement the register has never given a publication date, and on 416 of those (1.7%) every replacement named is unpublished — a revision project that is registered but that you cannot obtain. The test is the register's own publicationDate column, not the designation's spelling: all 29,680 rows it marks withdrawn and all 8,559 it marks current carry a publication date, and these replacement rows carry none. (24640 records, last verified 2026-10-29, JSON at https://referencesource.org/iso-standard-supersessions/data.json)
- [How long a money judgment stays enforceable before it must be renewed, by state](https://referencesource.org/judgment-renewal-deadlines-by-state/): A civil money judgment does not stay enforceable forever. Every state sets a clock on it, and when the clock runs out the creditor's own state statute — not the underlying debt's statute of limitations, which is a different clock that stopped the moment the judgment was entered — decides whether the judgment can be renewed and how. This is a distinct fact from the existing state-civil-statute-of-limitations asset (which covers filing the original suit) and from time-barred-debt-revival-rules-by-state (which covers a debt that never reached judgment). The clock and the mechanism both vary sharply, and the mechanism varies more than the clock does. Ohio judgments go dormant after 5 years, California, Texas, Minnesota and Florida's recorded lien after 10, New York after 20 — but the six states built first produced five different ways of extending one. California is a true renewal: the creditor files an application before expiry and gets a fresh 10 years from the filing date. Ohio and Texas use dormancy-and-revivor: the judgment lapses automatically and can only be brought back by a separate court action, itself time-limited, and Texas gives just 2 years to revive a judgment that went dormant at 10. Florida extends by re-recording a certified copy in the county records, not by any court application. Minnesota has no renewal step: the creditor's route is to sue on the judgment within the 10 years and win a new one. New York runs two clocks at once — the judgment is conclusively presumed paid after 20 years and nothing the creditor files extends that, but the lien on the debtor's real property lasts only 10 years from the filing of the judgment-roll and is renewed by an action on the judgment under CPLR 5014, which can only be commenced in the one-year window before those 10 years expire. Florida is the same shape: a 20-year outer limit over a 10-year recorded lien. Illinois is shorter than any of them at 7 years and revives on a petition that can only be filed in particular years, not at any time inside the period. North Carolina's route is the one Minnesota uses — sue on the judgment inside the ten years — but its section caps it: the action may be brought only once, and it does not continue the lien of the original judgment, so the second judgment starts a new lien priority date rather than inheriting the first one's. A reader who learns the number but not the shape can still miss the deadline, and on New York and Florida the headline number is twice the number that actually matters. A creditor, a collection attorney or a judgment-purchasing firm pricing an aged judgment needs to know both numbers: how much life is left, and what has to be filed to extend it, because missing the window is one of the most common ways a fully valid judgment becomes worthless. One record per state, quoted verbatim from that state's own code. Answers 'how long is a judgment good for in [state]', 'can I renew a judgment after it expires', 'judgment dormancy period by state'. This is a deadline lookup, not legal advice: whether a specific judgment has already been renewed, revived, or satisfied is a case-specific question the statute alone doesn't answer. (8 records, last verified 2026-09-01, JSON at https://referencesource.org/judgment-renewal-deadlines-by-state/data.json)
- [Jury duty employer pay requirements by US state — whether an employer must keep paying wages during jury service, how much, for how long, quoted from the state's own statute](https://referencesource.org/jury-duty-employer-pay-requirements-by-state/): Federal law (FLSA) does not require a private employer to pay an employee for time spent on jury duty — only eight states plus the District of Columbia impose any wage-continuation mandate at all, and where one exists the terms vary sharply: full regular wages with no cap (Alabama), full wages minus whatever fee the court itself pays the juror (Nebraska, Tennessee, DC), a flat dollar-per-day cap (Colorado $50/day, New York $72/day), or a mandate limited to a small fixed window (Louisiana covers one day only; Massachusetts and Colorado three days; Connecticut and DC five days). Several also exempt small employers below a headcount threshold (Tennessee under 5 employees; DC and New York's dollar floor apply only above 10 employees). Free HR-vendor comparison charts on this exact topic exist (Clockspot, Workforce.com) but Clockspot's own table flags five of its core-state rows — Louisiana, Massachusetts, Nebraska, Tennessee, DC — as 'commonly described, confirm before coding' rather than sourced to the statute text itself; this asset states all eight states plus DC against the primary code section. Each record is one jurisdiction with an employer pay mandate, giving the pay rule as the statute states it (amount, duration, any employer-size exemption) plus the citation. Jurisdictions with no mandate are omitted rather than asserted — the absence is the majority position and isn't claimed here without a source stating it for that specific state. Answers 'does my employer have to pay me for jury duty', 'how many days of jury duty must my employer pay for', 'can my employer deduct the court's juror fee from my pay'. (9 records, last verified 2026-09-02, JSON at https://referencesource.org/jury-duty-employer-pay-requirements-by-state/data.json)
- [Kubernetes component version skew policy: how far apart component versions can be in a supported cluster](https://referencesource.org/kubernetes-version-skew-policy/): The maximum version difference Kubernetes supports between cluster components, one record per governed component pair (kube-apiserver to kubelet, kube-proxy, kubectl, and the kube-controller-manager/kube-scheduler/cloud-controller-manager group, plus the kube-apiserver-to-kube-apiserver HA rule and the kube-proxy-to-kubelet rule), from the project's own version-skew-policy page. Answers 'how many minor versions behind can my kubelet be', 'can kubectl be newer than kube-apiserver', 'what must already be upgraded before I upgrade this component'. Getting this wrong during a rolling upgrade breaks node registration or blocks the upgrade path, usually discovered mid-rollout. The rule text is stable in structure release to release; the version numbers in the worked examples move with each Kubernetes minor release, so the numeric examples need re-verification on that cadence. (6 records, last verified 2026-10-27, JSON at https://referencesource.org/kubernetes-version-skew-policy/data.json)
- [GC column stationary phase cross-reference by manufacturer](https://referencesource.org/lab-instrument-consumables-equivalence/): A cross-reference of gas chromatography (GC) capillary column stationary phases across manufacturers, showing which column product names from Agilent, Restek, Phenomenex, Supelco/Merck, GL Sciences, GS-Tek, Trajan/SGE, Macherey-Nagel, Quadrex and others the publishing vendor says carry the same phase. Each record is one row of one published cross-reference chart — a single column product with the equivalents that chart lists beside it, plus the phase composition and the USP General Chapter <621> G-designation(s) it prints. A record is identified by the phase composition together with its G-code(s) and the Restek column on the row, because the phase name alone does not tell two rows apart: Restek's charts label ten chemically different columns, from 5% to 65% diphenyl, 'diphenyl dimethyl polysiloxane', and it is the first cell and the G-code that say which one. Built from four published charts belonging to three column makers (Restek at two URLs, GL Sciences, GS-Tek), each one-directional from its own products outward; about seven in ten records come from Restek's, so this is substantially Restek's chart with two smaller ones beside it rather than an even merge. No two vendors' rows meet on one page: measured across the bundle on 2026-10-06, all 81 pages are single-chart, and the only three records that fold together are Restek's own chart served at its two URLs. So this is four charts published side by side with a common set of columns, not a merge of them. Answers 'what GC column from Restek is equivalent to an Agilent DB-5ms', 'what USP G-code does this phase carry', 'which manufacturers make a 14% cyanopropylphenyl column', and 'what is the phase chemistry of a ZB-WAX column'. (81 records, last verified 2026-08-15, JSON at https://referencesource.org/lab-instrument-consumables-equivalence/data.json)
- [Landlord retaliation presumption period by US state](https://referencesource.org/landlord-retaliation-presumption-period-by-state/): State-by-state comparison of anti-retaliation statutes that protect tenants who complain about code violations, request repairs, join a tenant organization, or otherwise assert a legal right. Most of these statutes work by burden-shifting: if the landlord raises rent, cuts services, serves a termination notice, or files for eviction within a fixed window after the tenant's protected act, the law presumes the landlord's action is retaliatory and the landlord must prove otherwise. That window is the single most load-bearing number in the statute and it varies sharply by state — Washington sets it at 90 days (RCW 59.18.250), California at 180 days (Civil Code 1942.5), Illinois moved to a full year in its 2025 rewrite (765 ILCS 721/20) — while some states, like Florida, prohibit retaliation but never write a numeric presumption window into the statute at all, leaving the tenant to prove intent case by case. Each record quotes the state's own retaliation statute verbatim: the presumption period (or its absence), the protected activities that trigger it, and the statute citation. Answers 'landlord retaliation presumption period by state', 'how long after I complain can my landlord evict me', 'does my state have a retaliatory eviction presumption'. (28 records, last verified 2026-09-02, JSON at https://referencesource.org/landlord-retaliation-presumption-period-by-state/data.json)
- [Accuracy classes and maximum permissible errors for trade measuring instruments](https://referencesource.org/legal-metrology-accuracy-classes/): Accuracy classes and maximum permissible errors that the law assigns to instruments used for trade, from three authorities that do not publish a common table: Directive 2014/32/EU (the EU Measuring Instruments Directive), Directive 2014/31/EU and OIML R 76-1 (non-automatic weighing instruments), and NIST Handbook 44 code 2.20 (scales, United States). Each record is one instrument type at one accuracy class under one measurement condition, with the permitted error that authority states. The MID side covers nine of the ten instrument-specific annexes: water meters (MI-001), gas meters and volume conversion devices (MI-002), thermal energy meters (MI-004), measuring systems for liquids other than water including fuel dispensers and road tankers (MI-005), automatic weighing instruments (MI-006), taximeters (MI-007), material measures (MI-008), dimensional measuring instruments (MI-009) and exhaust gas analysers (MI-010). Active electrical energy meters (MI-003) carry no records, and that is a statement about the source rather than an omission: Annex V sets its limits in a Table 2 whose load-current bands EUR-Lex renders as images, so neither the band nor the value it pairs with is in the page's text and no row can be keyed to it honestly. Annex VI is thin for the same reason -- every formula in it is an image, so only the flow sensor's 5 % cap, which the directive states in words, is here. Answers 'what is the maximum permissible error for a water meter', 'what accuracy class does a petrol pump have to be', 'MID accuracy class for a taximeter', 'allowed error on a weighbridge', 'thermal energy meter accuracy class 2 MPE', 'is a class III scale legal for trade in both the EU and the US' and 'is my fuel dispenser within tolerance'. The values are condition-dependent -- the error allowed at low flow differs from the error allowed at high flow, and in-service limits differ from new-instrument limits -- so a single percentage figure is almost always the wrong answer. The weighing records are what makes this a juxtaposition rather than a restatement: for a non-automatic weighing instrument the EU directive and OIML R 76-1 state the same three limits over the same load bands, while NIST Handbook 44 adds a fourth band to classes III and IIII and carries a class III L that exists nowhere in Europe. No single document says that, and getting it today means reading a 443,000-character standard, a 300,000-character directive and a 470,000-character handbook side by side. (102 records, last verified 2026-09-01, JSON at https://referencesource.org/legal-metrology-accuracy-classes/data.json)
- [What a newspaper may legally charge to publish a legal notice — by US state](https://referencesource.org/legal-notice-publication-rates-by-state/): Every self-storage lien sale, foreclosure, probate, name change, DBA filing, estate notice and municipal budget in the United States has to be published as a paid legal notice in a qualifying newspaper, and in most states the price the newspaper may charge is capped by statute. This is a state-by-state comparison of that cap, taken from the statute itself rather than from a compilation. The statutes do not share a unit: Nebraska and Colorado cap cents per line of a specified type size and column width, Ohio and West Virginia work in column inches, Wyoming and Kansas in cents per word or per line with banding, and Alabama, Arkansas, Arizona and Washington set no number at all but tie the legal rate to the newspaper's own lowest commercial or classified rate. Several states charge a lower rate for the second and subsequent insertions of the same notice. Iowa's statutory figure is a base rate that the department of administrative services recalculates every June by CPI and publishes in the Iowa Administrative Bulletin, so the statute alone does not give the current number. The point of the comparison is that it is unit-normalised, dated, and read off the current statute: the leading free compilation in this niche still quotes Nebraska's 1996 rate of forty-five cents per line, where the statute has said fifty cents per line since October 1, 2023. Answers 'how much can a newspaper charge me to run a legal notice', 'is the price I was quoted for a foreclosure or lien-sale notice legal', and 'what is the legal advertising rate in my state'. Relevant to self-storage operators, foreclosure trustees, probate lawyers, county clerks, municipal budget officers, and the newspapers selling the notices. (37 records, last verified 2026-08-19, JSON at https://referencesource.org/legal-notice-publication-rates-by-state/data.json)
- [Life insurance premium grace periods and lapse protections by US state](https://referencesource.org/life-insurance-grace-periods-by-state/): For each US state, the minimum grace period its insurance code requires a life insurance policy to allow after a missed premium before the policy may lapse, plus any additional lapse protections (extended periods for seniors, designated-third-party notice requirements) — sourced from each state's insurance code. Answers 'how long is the life insurance grace period in [state]', 'can my life insurance lapse after one missed payment', and 'does the insurer have to notify anyone before my policy lapses'. Most states require 30 or 31 days, but California requires not less than 60 days plus a 30-day pre-lapse notice to the owner and any designated third party (Ins. Code § 10113.71) — generic web content still says '30 or 31 days' everywhere, so the unaided answer is wrong exactly where a statute moved. (8 records, last verified 2026-08-17, JSON at https://referencesource.org/life-insurance-grace-periods-by-state/data.json)
- [LIHEAP income eligibility limits by state and household size](https://referencesource.org/liheap-income-eligibility-by-state/): LIHEAP (federal home heating/cooling energy assistance) sets a national floor -- 110% of the federal poverty guideline, or 60% of state median income if higher -- but leaves the actual cutoff to each state, and states pick anywhere up to 150-175% FPG or their own SMI schedule and re-publish it once a year in dollars per household size. The one federal aggregator (the LIHEAP Clearinghouse) that used to compile all 50 states into one table is unreachable (SSL certificate failure, verified 2026-08-20) and third-party benefit-screening sites reproduce it without sourcing which state page they read it from or when. Each record is one state x one household size x one program season, stating the income ceiling, whether it is annual or monthly, and the percent-of-FPG or SMI basis the state used. Answers 'do I qualify for LIHEAP in [state] with a household of [n] and [income]', 'what's the LIHEAP income limit for a family of 4 in [state] this year'. (43 records, last verified 2026-08-24, JSON at https://referencesource.org/liheap-income-eligibility-by-state/data.json)
- [Lithium battery shipping limits (49 CFR 173.185)](https://referencesource.org/lithium-battery-shipping-limits/): Watt-hour and lithium-content thresholds, quantity limits and packaging conditions for shipping lithium cells and batteries under US hazardous materials regulations (49 CFR 173.185). Answers 'DJI Mavic 3 battery watt hours — can I ship it', 'IATA lithium battery PI 966/967 requirements' and 'lithium battery packed with equipment state of charge limit'. Deliberately NOT a compatibility table — this is regulatory prose with numeric triggers. (15 records, last verified 2026-10-29, JSON at https://referencesource.org/lithium-battery-shipping-limits/data.json)
- [Third-party litigation funding disclosure requirements by US state — whether the law requires a party to disclose a litigation funding agreement, to whom, and on what trigger, quoted from the statute itself](https://referencesource.org/litigation-funding-disclosure-requirements-by-state/): When an outside investor pays a plaintiff's litigation costs in exchange for a cut of any recovery, most states say nothing about whether the other side, or the court, ever gets to know the funder exists or what it can control — discovery of the agreement is fought case by case. A small but fast-growing minority now write disclosure into a statute instead: Wisconsin (2018, the first), Indiana (2023), Montana (2023), West Virginia (a 2024 amendment) and Kansas (a 2025 amendment) each require a party who has taken litigation funding to say so without waiting for a discovery request — and Wisconsin, West Virginia and Montana do it in nearly identical statutory language, evidence the wording is being copied state to state as the idea spreads. What has to be handed over differs: Wisconsin, West Virginia and Montana require the agreement itself, Kansas requires the agreement to the court in camera plus a six-item sworn statement to the other parties, and Indiana requires only written notice that a funding contract exists. At least six more states legislated on litigation funding in 2025–2026 (Georgia, Arizona, Tennessee, Louisiana, Oklahoma, New York), a Michigan bill passed its House in May 2026, and a federal Litigation Funding Transparency Act (S. 3826, 119th Congress) sits in Senate Judiciary Committee — this is actively moving ground, not settled law. No comprehensive, current, citation-backed free tracker exists: the one law-firm '50-state guide' found (Lewis Brisbois) is a JS-gated page with no readable body; the one maintained comparison site found (CaseGlide, checked 2026-09-02) cites zero statute sections anywhere, and is flatly wrong about West Virginia — it says West Virginia only 'regulates funder conduct rather than compelling disclosure,' when W. Va. Code §46A-6N-6 requires exactly the same automatic disclosure to other parties that Wisconsin's statute does. This asset states, per state, the clause that creates that obligation — who must disclose, to whom, and when — quoted verbatim from the state's own official legislature host — its online code where that is readable, and its enrolled act where the code viewer serves no text, as is the case for Indiana. It covers only the obligation to disclose inside a lawsuit: statutes that instead regulate what a funder must put in its contract with the consumer who borrows (West Virginia §46A-6N-5, Arizona's SB 1215, and reportedly Georgia's and New York's 2025 acts) are a different mechanism and are deliberately out of scope, noted in the source list rather than folded in. Answers 'does my state require disclosure of litigation funding', 'do I have to tell the other side I have a litigation funder', 'is third-party litigation funding regulated in my state'. (5 records, last verified 2026-09-02, JSON at https://referencesource.org/litigation-funding-disclosure-requirements-by-state/data.json)
- [ACA marketplace subsidy income limits by coverage year, household size and state group](https://referencesource.org/marketplace-subsidy-income-thresholds/): The dollar income limits that decide whether a household qualifies for an ACA premium tax credit, for each coverage year, each household size from 1 to 8, and each of the three federal poverty guideline schedules (48 contiguous states and DC, Alaska, Hawaii). Each record states the poverty guideline the marketplace actually applies to that coverage year, the dollar figures at the 100%, 138%, 150%, 200%, 250%, 300% and 400% marks, the share of income the household is expected to pay at the top of the scale, and whether a hard cutoff applies above 400%. The enhanced credits created by the American Rescue Plan Act and extended by the Inflation Reduction Act lapsed on 31 December 2025, so coverage year 2026 was the first year since 2020 in which a household above 400% of the poverty line received no credit at all. No single page states these dollar figures. HHS publishes the poverty guidelines without the ACA multiples; the IRS publishes the applicable percentages without any dollar amounts; and the marketplace applies the guidelines published before open enrollment opened, not the guidelines bearing the coverage year's own number, which is the step most secondary sources get wrong. Answers 'what is the income limit for marketplace insurance in [year]', 'what is 400% of the federal poverty level for a family of [n]', 'how much can I earn and still get an Obamacare subsidy', 'what is the subsidy cliff', and 'what percentage of income do I have to pay for a benchmark plan'. (48 records, last verified 2026-10-29, JSON at https://referencesource.org/marketplace-subsidy-income-thresholds/data.json)
- [Meal and rest break requirements by US state — hours worked before a break is owed, its length, and whether it's paid, quoted from the state's own labor law](https://referencesource.org/meal-and-rest-break-requirements-by-state/): Most US states impose no meal- or rest-break requirement at all on private employers — federal law (the FLSA) doesn't require either. A minority of states do, and the rules vary sharply: the hours-worked threshold that triggers a meal break, its minimum length, whether it counts as paid time, and whether a separate rest break is owed on top of it, each set independently by that state's own statute or wage regulation. California requires a 30-minute meal break after 5 hours (a second after 10) and a paid 10-minute rest break per 4 hours; Illinois requires only a 20-minute meal break after 7.5 hours worked and no rest break at all; most states require neither. Free HR-vendor comparison charts on this topic (Paycor, HiveDesk, TimeClick) are comprehensive but cite no statute or regulation section, so a reader has no way to check a row against its source — and at least one such chart is already stale on Minnesota, whose meal- and rest-break law changed effective January 1, 2026. Each record is one state with a break requirement, giving the meal-break rule and the rest-break rule as the statute or regulation states them, each backed by a verbatim quote, plus the citation. States with no break requirement are omitted rather than asserted, since the absence itself has to be checked per state and isn't claimed here without a source stating it. Answers 'does my state require a lunch break', 'am I entitled to a paid break at work', 'how many hours can I work before I'm owed a break in [state]'. (21 records, last verified 2026-09-02, JSON at https://referencesource.org/meal-and-rest-break-requirements-by-state/data.json)
- [Mechanics lien filing deadlines, preliminary notice requirements, and enforcement windows by US state and party role](https://referencesource.org/mechanics-lien-deadlines-by-state/): State-by-state comparison of the deadlines that determine whether a contractor, subcontractor, or material supplier keeps or loses the right to file a mechanics lien on a construction project. Each record is one state with the preliminary notice deadline (days from first furnishing), lien recording deadline (days from completion or last furnishing), and enforcement deadline (days from recording to file suit), broken out by party role (general contractor vs subcontractor/supplier). Also captures whether preliminary notice is required at all, the notice name in each state's statute, whether the state is a 'full price lien' or 'unpaid balance' state, and the statutory citation. Answers 'how many days do I have to file a lien in [state] as a [sub/supplier]', 'do I need to send preliminary notice in [state]', and 'what happens if I miss the deadline'. (51 records, last verified 2026-08-14, JSON at https://referencesource.org/mechanics-lien-deadlines-by-state/data.json)
- [Medicaid Estate Recovery Rules by State](https://referencesource.org/medicaid-estate-recovery-rules-by-state/): State-by-state Medicaid estate recovery rules, taken from each state's own statute or administrative code: what the state counts as the 'estate' it may recover from (the single biggest difference between states — a probate-only state cannot reach jointly held property, a life estate or a living trust, an expanded state can), when recovery is barred or deferred because a spouse or a minor, blind or disabled child survives, the undue-hardship waiver the state offers, and any home equity limit the provision states. Answers 'can Medicaid take the house', 'does my state recover from non-probate assets', and 'what stops recovery while a survivor is alive'. Each value is a verbatim span of the state's own provision, quoted alongside it. (35 records, last verified 2026-08-31, JSON at https://referencesource.org/medicaid-estate-recovery-rules-by-state/data.json)
- [How long medical certificates last for pilots, commercial drivers and merchant mariners — by class, age and service type](https://referencesource.org/medical-certificate-validity-by-occupation/): How long a federally required medical certificate remains valid for each regulated transport occupation, and what it depends on. FAA pilot medicals (14 CFR 61.23) cascade by class and age — a first-class certificate carries first-class privileges to the 12th month for pilots under 40 but only the 6th month at 40 or older, then downgrades to second- and third-class privileges on a schedule; commercial drivers need a medical examiner's certificate on a cycle set by 49 CFR 391.45; merchant mariner medical certificates run 2 years for STCW service but 5 years for national-only credentials, and only 1 year for mariners under 18 (46 CFR 10.301). Same question — 'how long is my medical good for?' — three regulators, three completely different answer structures. Answers 'how long is a first class medical valid for a 45-year-old pilot?', 'how often does a truck driver need a DOT physical?', 'why is my mariner medical certificate only valid two years?' (17 records, last verified 2026-10-29, JSON at https://referencesource.org/medical-certificate-validity-by-occupation/data.json)
- [Medical Debt Interest Caps and Collection Restrictions by State](https://referencesource.org/medical-debt-collection-protections-by-state/): Since 2022, at least nine states have passed medical-debt-specific consumer protection statutes on top of ordinary debt-collection law: a cap on the interest rate a hospital or debt buyer may charge on medical debt, a minimum waiting period before debt can be sold or a suit filed, a ban on wage garnishment or a lien on the patient's home for medical debt, or a dollar floor below which a hospital may not sue at all. Each state uses a different mechanism and a different number, several were enacted or took effect in the last 12 months (Louisiana, Rhode Island, Virginia, Maryland, Maine, Colorado, New Jersey, New York), and the only free 50-state assembly (Commonwealth Fund, researched through June 2025) already predates most of them. A patient or advocate asking 'can they charge me interest on this hospital bill' or 'can they garnish my wages for this' gets a different, checkable, statute-backed answer depending on the state. (9 records, last verified 2026-08-27, JSON at https://referencesource.org/medical-debt-collection-protections-by-state/data.json)
- [Medical malpractice certificate/affidavit of merit requirements by US state — quoted from the state statute or court rule](https://referencesource.org/medical-malpractice-certificate-of-merit-by-state/): Most states require a plaintiff in a medical malpractice case to file something beyond an ordinary complaint — a sworn affidavit from a qualifying medical expert, a certificate that the plaintiff's attorney consulted one, or a hybrid of the two — confirming the claim was reviewed and has merit before the case can proceed. The document's name, who must sign it, the filing deadline and the consequence of missing it are all set by the individual state's own statute or court rule, and none of the four vary in lockstep: New Jersey requires an affidavit within 60 days after the defendant's answer is filed, Illinois and Georgia require it filed with the complaint itself, Nevada's statute states no deadline at all but dismisses any action filed without an affidavit, Arizona requires the affidavit not with the complaint but with the Rule 26.1 initial disclosures, Texas requires an expert report within 120 days after each defendant's answer, Ohio (a court rule, not a statute) requires the complaint to be accompanied by the affidavit, Pennsylvania (also a court rule) allows filing with the complaint or within 60 days after, Maryland requires a certificate within 90 days of the complaint filed with an administrative arbitration office rather than the court, and Colorado requires the plaintiff's attorney (not a medical expert) to certify within 60 days of service that an expert was consulted. A widely-cited free chart on this exact question (Expert Institute's 'Certificate/Affidavit of Merit by State') states in its own text that its state list is only 'representative' rather than exhaustive, and gives a filing deadline for only 6 states out of the roughly 20 it names — this asset instead states 10 states each against the actual statute or court rule text, with the requirement, the deadline, who must sign, and the stated consequence of non-compliance, each backed by a verbatim quote. States not covered here are omitted rather than guessed at. Answers 'does [state] require a certificate of merit for medical malpractice', 'affidavit of merit deadline in [state]', 'what happens if you don't file an affidavit of merit', 'who has to sign a medical malpractice certificate of merit'. A reference lookup, not legal advice — extensions, cure periods and exceptions (e.g. where the statute of limitations is about to run) exist in most of these statutes and the record quotes them where the source states them, but a specific case should be checked against the current text and against local counsel. (10 records, last verified 2026-09-02, JSON at https://referencesource.org/medical-malpractice-certificate-of-merit-by-state/data.json)
- [US minimum wage rates by state, city, and worker type](https://referencesource.org/minimum-wage-rates-by-jurisdiction/): Current minimum wage, tipped (subminimum) wage, and small-employer rates for every US state plus major cities and counties that set their own higher rate. Each record is one jurisdiction at one worker type, stating the current hourly rate, effective date, next scheduled change, and the indexing method if any. Answers 'what is the minimum wage in [city/state]', 'what is the tipped wage in [state]', and 'when does the minimum wage go up in [jurisdiction]'. (60 records, last verified 2026-10-05, JSON at https://referencesource.org/minimum-wage-rates-by-jurisdiction/data.json)
- [How far off a US fuel pump, LPG meter or EV charger is allowed to be (NIST Handbook 44)](https://referencesource.org/motor-fuel-dispenser-measurement-tolerances-nist/): The accuracy every commercial device that sells fuel or energy in the United States has to hold, taken from NIST Handbook 44 -- the specifications and tolerances that state weights-and-measures programs adopt by reference and enforce when they inspect a gas pump. Each record is one row of one tolerance table: the commodity or device the row covers, its accuracy class, and the three limits the handbook prints for it. Answers 'how accurate does a gas pump have to be' (a retail petrol or diesel dispenser is Accuracy Class 0.5: 0.5 % once in service, 0.3 % when newly installed), 'is a new dispenser held to a tighter standard than one already in service' (yes -- the acceptance tolerance for a new or newly repaired device is tighter than the maintenance tolerance that applies afterwards), and the same question for propane, anhydrous ammonia, CNG, hydrogen, liquid CO2, cryogenic products and EV chargers. Covers Handbook 44 sections 3.30 (liquid-measuring devices), 3.31 (vehicle-tank meters), 3.32 (LPG and anhydrous ammonia), 3.33 (hydrocarbon gas vapor), 3.34 (cryogenic), 3.37 (mass flow meters), 3.38 (carbon dioxide), 3.39 (hydrogen) and 3.40 (electric vehicle fueling systems). Three things to read alongside the numbers. First, the handbook footnotes that special test tolerances do not apply to retail motor fuel or retail Diesel Exhaust Fluid dispensers at all, so the special-test column in section 3.30 is not a limit a filling-station pump is held to; that footnote is carried here as its own record. Second, the Accuracy Class 0.5 percentages stop applying on a small test draft: in section 3.30, a draft of 40 L (10 gal) or less is held to a volume figure instead of a percentage, and in section 3.31 to 6 in3 for a 5 gallon draft and 11 in3 for a 10 gallon one. The section 3.30 version of that exception is a record here. Third, this is a first pass over a source published only as a PDF: a table row is included only where the device, the class and the printed limits sit in one continuous run of text, so a handful of rows whose bullets are split across a page break by the PDF's running footer are not yet here -- section 3.30's Accuracy Class 0.3 row is the notable omission, and the equivalent row is present from sections 3.31 and 3.37. Nothing is reconstructed across a break; a row we cannot quote whole is left out. (30 records, last verified 2026-08-20, JSON at https://referencesource.org/motor-fuel-dispenser-measurement-tolerances-nist/data.json)
- [State below-cost motor fuel selling laws and minimum-markup percentages](https://referencesource.org/motor-fuel-minimum-markup-laws-by-state/): A handful of states make it illegal for a gas station to sell fuel below its own cost, on the theory that a chain with deep pockets could otherwise sell at a loss long enough to drive independent competitors out and then raise prices. Two separate things have to be known before anyone can act on one of these laws, and they almost always live in two different statute sections: what conduct is actually prohibited (and what the exceptions are), and how the law says 'cost' is calculated. So each state gets a record for each. Only two of the states here bolt a fixed cost-of-doing-business markup percentage onto cost -- Wisconsin (6% retail, 3% wholesale, 9.18% on the average posted terminal price) and West Virginia (4% wholesale) -- which is why the popular name 'minimum markup law' is misleading everywhere else: Minnesota, Missouri, North Carolina and Florida set a cost floor with no fixed percentage on top. No comprehensive compiled version of these laws was found; each state's rule lives only in its own statute or agency guidance page. Answers 'can a gas station legally sell below cost in my state', 'what's the minimum markup percentage for gasoline in Wisconsin', 'what counts as cost for a gas station in Florida', 'is meeting a competitor's price an exception'. (18 records, last verified 2026-10-29, JSON at https://referencesource.org/motor-fuel-minimum-markup-laws-by-state/data.json)
- [Which National Electrical Code edition each US state enforces: adoption status, effective dates and amendments, from the state boards themselves](https://referencesource.org/nec-edition-adoption-by-state/): The NEC edition currently in force in each US state, with the effective date, the adopting authority, whether state amendments apply, and any announced transition to a newer edition. The spread is real and moving: Minnesota's Board of Electricity put the 2026 NEC in force on Aug. 17, 2026 (permits filed before that date still follow the 2023 NEC); Oregon's 2023 Oregon Electrical Specialty Code, based on the 2023 NEC, took effect Oct. 1, 2023 with a published table of amendments, and the 2026 OESC is in adoption; Washington's WAC 296-46B-010 carries the 2023 NEC with the 2026 edition already written in for Dec. 31, 2026; Nebraska has been on the 2023 NEC since Aug. 1, 2024. Answers 'which NEC edition is in effect in my state?', 'which states have adopted the 2026 NEC?', 'does my state amend the NEC or adopt it unamended?', 'when does the new electrical code take effect for permits?'. Caveat: local jurisdictions (AHJs) may enforce a different edition; this asset records statewide adoption only. Which edition is in force changes month to month, which is why every record carries the date its source states and a verbatim quote — a static tracker published two weeks before Minnesota's cutover was wrong two weeks later, and so was an earlier version of this asset. (5 records, last verified 2026-10-05, JSON at https://referencesource.org/nec-edition-adoption-by-state/data.json)
- [EPA NESHAP Source Category Applicability Crosswalk](https://referencesource.org/neshap-source-category-crosswalk/): Maps each EPA NESHAP source category to its 40 CFR subpart, whether it applies to major or area sources, the original final rule date, most recent amendment, and residual risk/technology review status. (125 records, last verified 2026-10-29, JSON at https://referencesource.org/neshap-source-category-crosswalk/data.json)
- [NFA firearm category definitions and current transfer/making tax](https://referencesource.org/nfa-firearm-category-definitions-and-transfer-tax/): The National Firearms Act regulates six firearm categories -- short-barreled rifle, short-barreled shotgun, any other weapon (AOW), machine gun, silencer, destructive device -- each defined by its own measurement threshold in ATF's regulations at 27 CFR 478.11 and 479.11. Separately, and recently changed: the federal transfer tax and making tax on those items dropped from $200 per item to $0 for every category except machine guns and destructive devices, under section 70436 of the One Big Beautiful Bill Act (Pub. L. 119-21, signed 2025-07-04), which amended 26 U.S.C. 5811(a) and 5821(a). ATF states the change took effect on January 1, 2026, and issued a final rule on 2026-05-08 (ATF No. 2025R-45F, 91 FR 25112) conforming 27 CFR 479.61, 479.62, 479.81, 479.82 and 479.84 to the new rates. Each record is one NFA category, giving its defining measurement threshold and its current and prior transfer/making tax, each quoted verbatim from the regulation or from ATF's own rulemaking. Two things vendor pages routinely get wrong: the paperwork did not change (Form 1/Form 4, fingerprints and the background check are all unchanged), and the AOW transfer tax went from $5 -- not $200 -- to $0. One nuance not carried per-record: the short-barreled rifle and shotgun definitions here are 27 CFR 478.11's, which are the ones that name those terms; the NFA's own list at 27 CFR 479.11(b) and (d) states the 'weapon made from a rifle/shotgun' prong slightly more broadly, as an overall length under 26 inches OR a barrel under 16 (rifle) / 18 (shotgun) inches. Answers 'what barrel length makes a rifle an SBR', 'how much is an ATF tax stamp in 2026', 'is the NFA tax still $200'. (6 records, last verified 2026-10-29, JSON at https://referencesource.org/nfa-firearm-category-definitions-and-transfer-tax/data.json)
- [NFPA 704 fire diamond ratings by chemical](https://referencesource.org/nfpa-704-hazard-ratings/): The NFPA 704 'fire diamond' rating for a chemical — the health (blue), flammability (red), instability (yellow) numbers and any special (white) notice — as published on that chemical's own datasheet. Each record is one chemical, with the four quadrants, each quoted from its own printed row of the datasheet's table so that the page's own wording for what the number means sits beside it, plus any footnote the datasheet prints under that table. Answers 'what is the NFPA 704 rating for anhydrous ammonia', 'fire diamond numbers for thionyl chloride', and 'what does a 3 in the blue diamond mean'. NFPA 704 itself is a paywalled standard and the per-chemical ratings are scattered one page at a time across datasheets and SDSs, so no single free table exists — assembly, one source per record. (4 records, last verified 2026-10-29, JSON at https://referencesource.org/nfpa-704-hazard-ratings/data.json)
- [NIST cryptographic algorithm deprecation schedule: what is approved, deprecated, and disallowed, and when](https://referencesource.org/nist-cryptographic-algorithm-deprecation-schedule/): Per-algorithm status under NIST guidance for the post-quantum cryptographic transition. Each record is one algorithm or key-length configuration with its current approval status (approved, acceptable, deprecated, restricted, disallowed, legacy use), the date at which the status changes, and the recommended replacement. Drawn from three NIST publications: IR 8547 (post-quantum transition timeline), SP 800-131A Rev 2 (current algorithm status rules) and Rev 3 draft (upcoming changes), and FIPS 203/204/205 (the post-quantum replacement standards). The key deadlines: quantum-vulnerable public-key algorithms (RSA, ECDSA, ECDH, finite-field DH) deprecated after 2030, disallowed after 2035; SHA-1 and 224-bit hashes deprecated through 2030, disallowed thereafter. AES-256 and SHA-2/SHA-3 are NOT on the deprecation schedule. Answers 'when is RSA deprecated?', 'is AES-256 affected by the post-quantum transition?', 'what replaces ECDSA?', and 'what is the current NIST status of 3DES?' (21 records, last verified 2026-10-29, JSON at https://referencesource.org/nist-cryptographic-algorithm-deprecation-schedule/data.json)
- [Current EPA nonattainment county designations by pollutant](https://referencesource.org/nonattainment-county-designations-by-pollutant/): Whether a US county is in 'nonattainment' for a given Clean Air Act pollutant (and if so, at what severity classification) drives real obligations for anyone building, permitting, or selling into that county: stricter new-source review, vehicle inspection and reformulated-fuel requirements, and federal highway-funding conditions all key off this status. EPA's Green Book is the single authoritative list, but it is a very long plain-text table with no per-county lookup and no API — a resident, contractor, or small manufacturer has to scan hundreds of rows by hand to find their county. Each record is one county x one pollutant NAAQS combination: whether it is designated nonattainment, the classification if the pollutant test has one (Marginal through Extreme for ozone; Moderate/Serious for PM), and the named nonattainment area it belongs to. Answers 'is [county] in nonattainment for ozone', 'what classification is [county] for PM-2.5', 'does building in [county] trigger nonattainment-area permitting'. (463 records, last verified 2026-10-05, JSON at https://referencesource.org/nonattainment-county-designations-by-pollutant/data.json)
- [Notary public commission term length by US state — how many years a commission lasts before it must be renewed, quoted from the state's own statute](https://referencesource.org/notary-public-commission-term-length-by-state/): Every state commissions notaries public for a fixed term before renewal is required, but the length varies far more than most people expect — from 2 years (Delaware's initial term) and 3 years (Iowa) up to 10 years (Arkansas, South Carolina), with Ohio at 5 years except for attorneys, Michigan running 6 to 7 years on the notary's own birthday, and Louisiana alone commissioning notaries for life. A widely used free tracker (getlicensemap.com's 'Notary Renewal Requirements' chart) covers all 50 states plus DC for this exact fact, but its own sourcing note is a single blanket claim ('sourced from official state Secretary of State offices... and other state commissioning authorities') with no citation on any individual row — there is no way to check one state's figure against the statute it supposedly came from. This asset states the term length for each jurisdiction against the actual statute or administrative code section, quoted verbatim, so every row can be checked. Each record is one state; the term length is given exactly as the statute states it (a fixed number of years, a birthday-anchored range, or 'for life'), together with the citation. Answers 'how long does a notary commission last in my state', 'when do I need to renew my notary commission', 'is Louisiana the only state with a lifetime notary commission'. (17 records, last verified 2026-09-02, JSON at https://referencesource.org/notary-public-commission-term-length-by-state/data.json)
- [Notary Public Maximum Fees by State](https://referencesource.org/notary-public-maximum-fees-by-state/): Maximum fees a notary public may charge per notarial act in each US state and DC, as set by state statute. Covers acknowledgments, jurats, oaths, and other common acts. (81 records, last verified 2026-08-31, JSON at https://referencesource.org/notary-public-maximum-fees-by-state/data.json)
- [US state notifiable disease reporting timeframes by condition](https://referencesource.org/notifiable-disease-reporting-timeframes/): State-by-state reporting timeframes for notifiable diseases and conditions. Each record is one state’s reporting requirement for one disease, with the mandated timeframe (immediately, 4 hours, 24 hours, 3 working days, 7 days, etc.), the reporting method (telephone, fax, electronic), and the receiving agency. Answers 'how quickly must I report [disease] in [state]', 'which diseases require immediate telephone reporting in [state]', 'what is the reporting timeframe for measles in Georgia vs Kansas'. The matrix is roughly 50 states × 80+ conditions, and no cross-state comparison exists despite every state publishing its own list individually. (335 records, last verified 2026-09-22, JSON at https://referencesource.org/notifiable-disease-reporting-timeframes/data.json)
- [Deprecated npm packages and their maintainer-named replacement](https://referencesource.org/npm-deprecated-package-recommended-replacement/): npm allows a maintainer to attach a 'deprecated' message to a specific published version, and that message often names the exact replacement package or built-in API to use instead -- 'left-pad' points at String.prototype.padStart(), 'istanbul' points at nyc, 'tslint' points at ESLint, 'babel-eslint' points at @babel/eslint-parser. This is first-party, machine-readable data sitting in the registry API itself, but nobody has assembled it into a browsable table: a developer running `npm install` sees the warning once in a terminal scroll and it is gone, and the alternative is a content-mill blog post ranking '10 request alternatives' without quoting what the maintainer actually said. This asset would have been too tedious to maintain by hand across thousands of packages -- watching a firehose of new deprecations and re-checking old ones for changes -- but is a mechanical registry read for one machine, refreshable on a schedule at zero marginal cost per package. Each record is one deprecated package, quoting its maintainer's own deprecated message verbatim and naming the specific replacement stated in it. Answers 'is request deprecated', 'what should I use instead of tslint', 'why is my npm install warning about gulp-util'. (96 records, last verified 2026-10-29, JSON at https://referencesource.org/npm-deprecated-package-recommended-replacement/data.json)
- [Which OSHA-recognized labs (NRTLs) can certify to a given test standard](https://referencesource.org/nrtl-recognized-test-standards/): The inverted view of OSHA's Nationally Recognized Testing Laboratory program: for each test standard, every NRTL currently recognized to certify products to it. Answers 'which NRTLs can certify to UL 508A', 'can anyone other than UL list to UL 1741', 'is my lab's mark acceptable to OSHA for this product', and 'who else could quote this job'. OSHA publishes the recognition one laboratory at a time — twenty separate pages, each a long table of that lab's standards — and its own list-of-standards page says so in as many words: 'See individual NRTL informational web pages to determine which of these standards fall within an NRTL's scope of recognition.' So the question a manufacturer actually has (who may certify my product, and therefore who can I ask for a price) requires opening and searching twenty pages, and nobody publishes the answer. (4334 records, last verified 2026-10-29, JSON at https://referencesource.org/nrtl-recognized-test-standards/data.json)
- [Nursing home minimum staffing requirements by US state — hours per resident day and RN coverage mandates after the 2026 federal repeal](https://referencesource.org/nursing-home-minimum-staffing-by-state/): State-by-state comparison of legally mandated minimum staffing levels for nursing homes (skilled nursing facilities). Each record is one state with the total hours of nursing care per resident per day (HPRD), the RN-specific HPRD minimum, the CNA-specific HPRD minimum, the RN coverage requirement (hours per day), and the statutory citation. The federal CMS minimum (3.48 HPRD + 24/7 RN) was REPEALED in December 2025, effective February 2026, and a moratorium through October 2034 was enacted via the One Big Beautiful Bill Act. States are now the only authority. State values are drawn from the Consumer Voice 50-state staffing standards chart (November 2021), except New York and South Carolina, which come from the state agencies directly; state law changes since November 2021 may not be reflected. Answers 'what is the minimum nursing staff my state requires per resident' and 'is there still a federal nursing home staffing minimum'. (51 records, last verified 2026-08-14, JSON at https://referencesource.org/nursing-home-minimum-staffing-by-state/data.json)
- [Nursing homes under CMS Special Focus Facility oversight: current SFFs, candidates, graduates and terminations, by CMS certification number](https://referencesource.org/nursing-home-special-focus-facilities/): Which US nursing homes are in the CMS Special Focus Facility (SFF) programme, which are candidates for it, which have graduated and which have left Medicare and Medicaid altogether. Each record is one facility, identified by its six-digit CMS certification number (provider number), carrying the facility name, address, city, state, ZIP and phone exactly as CMS prints them, which of the four tables it appears in, the date of its most recent inspection, whether that inspection met the graduation criteria, and how many months it has been an SFF. Answers 'is this nursing home a special focus facility', 'which nursing homes in Ohio are on the SFF list', 'how long has this home been under enhanced oversight', 'which homes graduated from the SFF program', and 'which nursing homes were terminated from Medicare'. CMS publishes this as a single PDF that is overwritten every month, with no archive index, no per-facility page and no statement of what changed, so a month-stamped question — and people search month-stamped, see the autocomplete evidence in state/territories/nursing-home-special-focus-facilities.json — has no published answer at all. (1927 records, last verified 2026-08-11, JSON at https://referencesource.org/nursing-home-special-focus-facilities/data.json)
- [NVIDIA GPU CUDA compute capability by model](https://referencesource.org/nvidia-cuda-compute-capability-by-gpu/): Which CUDA compute capability version (e.g. '8.9', '12.0') each NVIDIA GPU model supports, from NVIDIA's own compute-capability table. Compute capability determines which CUDA toolkit version a card needs, which `-arch=sm_XX` / `-gencode` build flags to pass (the target is the capability written without its dot, so 8.9 is sm_89 and 12.0 is sm_120), and whether a PyTorch/TensorFlow wheel built for one architecture will run on a given card. Answers 'what compute capability is my GPU', 'does CUDA 11.8 support the RTX 4090', 'what sm_XX target do I use for an A100'. NVIDIA's own page is the single source of truth and is already well-ranked for individual current-generation cards; the value here is completeness (legacy cards back to the earliest Fermi/Kepler-era GPUs, and every SKU in a generation, not just the flagship) in one machine-readable table, and being current the moment a new architecture (e.g. Blackwell, 12.x) ships, before third-party blogs catch up. (442 records, last verified 2026-10-01, JSON at https://referencesource.org/nvidia-cuda-compute-capability-by-gpu/data.json)
- [OEM maintenance schedule by vehicle model and year, sourced from the manufacturer's own document](https://referencesource.org/oem-vehicle-maintenance-schedule-by-model/): What the manufacturer's own maintenance guide says to do at each mileage/time interval, one record per make, model, model year, interval and service item, each quoted from the manufacturer's own PDF. Toyota publishes a Warranty & Maintenance Guide per model and model year at assets.sia.toyota.com, and those documents are behind every record here — one make so far. Published today: the 2024 Camry, the 2026 Camry, the 2025 Corolla, RAV4, Tacoma, Tundra, Highlander, 4Runner and Sienna, and the 2026 Sequoia Hybrid, including the Special Operating Conditions schedule and the condition each of those items applies under. The 2025 Camry and 2025 Prius guides are listed in sources.txt, fetched and checked, and deliberately not harvested yet — see the note in that file. (6111 records, last verified 2026-08-31, JSON at https://referencesource.org/oem-vehicle-maintenance-schedule-by-model/data.json)
- [OSHA fall protection trigger height by standard](https://referencesource.org/osha-fall-protection-trigger-height-by-standard/): OSHA does not set one fall-protection trigger height. General industry (29 CFR 1910.28) sets 4 feet, general construction (1926.501) sets 6 feet, scaffolds (1926.451) sets 10 feet, and steel erection (1926.760) sets 15 feet -- the same worker doing the same job can cross from one trigger to another by changing which standard applies. Nor does any one standard set a single height: within general industry a fixed ladder triggers at 24 feet, a repair pit is exempt below 10 feet, and low-slope roof work is governed by distance from the edge rather than height at all. Each record is one named hazard situation inside one standard -- the numbered paragraph the regulation itself uses, such as 'Hoist areas', 'Holes' or 'Steep roofs' -- stating the height that triggers protection there and exactly what the paragraph requires once it does, quoted from the regulation. Safety consultants and OSHA-training blogs restate the 4/6/10/15 numbers constantly but rarely cite the paragraph or state what is required, which is the part that matters for compliance. Answers 'what height do I need fall protection at', 'is scaffold fall protection 6 feet or 10 feet', 'what height do I need fall protection around a floor hole', 'what OSHA standard covers steel erection fall protection'. (42 records, last verified 2026-10-29, JSON at https://referencesource.org/osha-fall-protection-trigger-height-by-standard/data.json)
- [OSHA medical surveillance trigger thresholds by substance](https://referencesource.org/osha-medical-surveillance-triggers/): The airborne exposure level that triggers mandatory medical surveillance under each OSHA substance-specific standard (29 CFR 1910 Subpart Z), compared across all regulated substances. Each record is one substance, carrying its action level, PEL, the exposure duration that triggers surveillance, the medical exam scope and frequency, biological monitoring requirements if any, and the record retention period. Answers 'what is the action level for lead', 'at what exposure must I provide medical exams for benzene workers', 'how often does cadmium biological monitoring need to happen', and 'which OSHA substances require 40-year record retention'. The action level is typically half the PEL but not always, and the surveillance trigger conditions vary wildly: lead uses blood lead levels, cadmium uses urine cadmium, and most others use airborne concentration plus days-per-year thresholds. (23 records, last verified 2026-10-29, JSON at https://referencesource.org/osha-medical-surveillance-triggers/data.json)
- [OSHA injury and illness recordkeeping exemptions by industry (NAICS)](https://referencesource.org/osha-recordkeeping-exemptions/): Whether a business must keep OSHA 300 injury/illness logs turns on two independent rules: a company-size exemption (10 or fewer employees, company-wide, at any time in the last calendar year) under 29 CFR 1904.1, and a partial industry exemption for specific NAICS codes under 29 CFR 1904 Subpart B Appendix A, which applies regardless of size. The eCFR page for subpart B prints both; what this dataset adds is one addressable, quoted page per NAICS code instead of one long appendix to scroll. Each record is one partially-exempt industry, carrying its NAICS code and the regulation's own industry label. Separate page-level notes carry what the exemption actually does (and the written-request condition that suspends it), that the industry exemption attaches to an establishment rather than a whole company, the company-size rule, and the fatality/hospitalization/amputation/eye-loss reporting requirement that survives both exemptions. Answers 'does a gas station have to keep an OSHA log', 'is my software company exempt from OSHA recordkeeping', 'do I still have to report a fatality if I'm exempt', 'my company has an exempt office and a non-exempt warehouse'. (82 records, last verified 2026-10-29, JSON at https://referencesource.org/osha-recordkeeping-exemptions/data.json)
- [Every numeric requirement in OSHA's scaffold standard (29 CFR 1926.451) — dimensions, strengths, angles, safety factors and trigger heights](https://referencesource.org/osha-scaffold-dimensional-tolerances/): Every numeric requirement stated in 29 CFR 1926.451 (General requirements for scaffolds), extracted from the eCFR text and tabulated so a scaffold erector or safety inspector can look up any value without reading the full 60,000-character regulation. The values are not all dimensions: alongside the widths, gaps, clearances, overhangs, spacings and heights, the section states minimum strengths as forces in pounds, stairway and ramp angles in degrees, counts of parts (three wire rope clips, four rope wraps on a winding drum), wire-rope replacement thresholds in broken wires, load safety factors as multiples of the intended load, and the heights at which a duty such as fall protection or guardrailing begins. Each record is one requirement with its exact value as printed, in imperial and (where the regulation prints one) metric units, the paragraph citation, and the condition or scaffold type it applies to. Answers 'what is the maximum gap between scaffold planks', 'how far can a scaffold plank overhang its support', 'what is the minimum platform width for a scaffold', 'how much force must a scaffold toeboard withstand', 'how many wire rope clips does OSHA require on a suspension scaffold', 'what angle may a scaffold stairway be installed at', 'at what height-to-base ratio must a scaffold be tied', 'what is the load safety factor for scaffold suspension ropes', 'at what height does fall protection become required on a scaffold'. Scaffolding is among OSHA's top 10 most cited standards every year (6th in FY 2025) and the numeric values are scattered across paragraphs (a) through (h) of a long regulation -- a tabulation that puts them all in one place with their paragraph citations is genuinely useful and does not exist as a structured page anywhere found. (91 records, last verified 2026-10-27, JSON at https://referencesource.org/osha-scaffold-dimensional-tolerances/data.json)
- [OSHA training requirements by standard: topic, frequency, and CFR citation](https://referencesource.org/osha-training-requirements-by-standard/): Which OSHA standards require employee training, what the training must cover, how often it must be repeated, and who must receive it. Each record is one training requirement tied to a specific CFR section. Training frequencies vary: some are annual (respiratory protection 1910.134, bloodborne pathogens 1910.1030), some are event-driven (lockout/tagout 1910.147 — retrain when procedures change), some are initial-only with situational retraining (PPE 1910.132). Answers 'what OSHA training does my construction crew need', 'how often is respiratory protection training required', and 'does OSHA require annual forklift certification'. (31 records, last verified 2026-10-29, JSON at https://referencesource.org/osha-training-requirements-by-standard/data.json)
- [Outboard motor spark plugs and gaps by brand, with Yamaha oil and gear lube capacities](https://referencesource.org/outboard-motor-service-specs/): Spark plug part number and electrode gap for outboard motors from five brands — Yamaha, Mercury, Johnson/Evinrude, Honda and Suzuki — by model or model range. Yamaha models additionally carry an oil filter part number, engine oil capacity and gear lube capacity; the other four brands carry spark plug and gap only, because the two dealer charts this is assembled from publish capacities for Yamaha alone. One row per model or model range. Answers 'what spark plug does my Yamaha F150 take?', 'what gap does a Mercury 150-300 HP Verado run?' and 'how much gear lube does an F150 lower unit hold?' — questions where assistants guess a plausible but wrong part number or capacity. (53 records, last verified 2026-10-29, JSON at https://referencesource.org/outboard-motor-service-specs/data.json)
- [Packaging specification equivalence: neck finishes, corrugated grades and pallet standards](https://referencesource.org/packaging-material-specification-equivalence/): Cross-reference of packaging specifications that procurement, packaging engineers and brand owners need when substituting materials, matching closures to bottles, or converting between regional standards. Covers three domains: (1) SPI/GPI plastic and glass neck-finish dimensions with tolerances (T, E, H, S, I) for the 400, 410 and 415 thread series; (2) corrugated board grade equivalence between Mullen burst test and ECT edge crush test ratings, with maximum weight limits from both the Fibre Box Handbook and UPS guidelines; (3) EUR/ISO pallet footprint dimensions, load ratings and regional designations. Answers questions like 'what are the T and E dimensions for a 24-410 finish', 'is 200# Mullen the same as 32 ECT', and 'what size is a EUR 2 pallet'. (170 records, last verified 2026-09-23, JSON at https://referencesource.org/packaging-material-specification-equivalence/data.json)
- [PDMP Mandatory Prescriber Check Requirements by State](https://referencesource.org/pdmp-mandatory-check-requirements/): Which US states require a prescriber to check the Prescription Drug Monitoring Program before prescribing controlled substances, what triggers the check, and which drug classes it covers. One record per state, plus DC, Guam and Puerto Rico. This is a secondary summary rather than the rule itself: 50 of its 53 records restate a single 50-state prescribing guide, 52 of them carry no statutory citation, and a re-check interval the guide gives as 'often 90 days' is its generalisation and not a number from a statute. Confirm against the state's own pharmacy board or code before relying on it. (53 records, last verified 2026-08-15, JSON at https://referencesource.org/pdmp-mandatory-check-requirements/data.json)
- [US EPA pesticide residue tolerance limits by active ingredient and crop commodity](https://referencesource.org/pesticide-residue-tolerance-limits/): What is the maximum legal pesticide residue allowed on this food in the United States? EPA sets tolerances in 40 CFR Part 180, one section per active ingredient, each listing ppm limits by crop or crop group. There are ~500 sections and no single cross-reference table exists. This asset assembles them: one record per active ingredient × commodity, with the ppm tolerance, the CFR section, and the crop group. Answers 'glyphosate tolerance on soybeans', 'what is the MRL for chlorpyrifos on apples', 'EPA pesticide tolerance list by crop'. Food importers check tolerances against shipment lab results; farmers compare tolerances when choosing pesticide products. (1324 records, last verified 2026-10-29, JSON at https://referencesource.org/pesticide-residue-tolerance-limits/data.json)
- [The dated, ordered steps for taking a dog, cat or ferret into the United States, the European Union or Great Britain — microchip, rabies vaccination, blood test and the waiting periods between them, quoted from the law itself](https://referencesource.org/pet-travel-entry-requirements/): Getting a pet across a border is a chain of steps that only counts if it is done in the right order, and every link is a date. The microchip has to go in before the rabies vaccine or the vaccine does not count; the animal has to be old enough on the day it is vaccinated; then there is a wait before travel; and from an unlisted country there is a blood sample taken a set number of days after vaccination followed by a further wait of months. One step out of order costs three months and a plane ticket. This asset records each of those provisions as its own record, quoted verbatim from the instrument that states it — 42 CFR 71.51 for entry into the United States, Regulation (EU) No 576/2013 for the European Union, and the Defra guidance at GOV.UK for Great Britain. Answers 'what is the earliest my dog can fly?', 'does the microchip have to come before the rabies shot?', 'how long after the rabies blood test can we travel?', 'how old does a dog have to be to enter the US?', and 'when does the tapeworm treatment have to be given?' (19 records, last verified 2026-08-28, JSON at https://referencesource.org/pet-travel-entry-requirements/data.json)
- [PFAS drinking water concentration limits by US state — MCLs, notification levels, action levels, and health advisories for PFOA, PFOS, and other per- and polyfluoroalkyl substances](https://referencesource.org/pfas-drinking-water-limits-by-state/): State-by-state comparison of legally enforceable and advisory concentration limits for PFAS compounds in drinking water. Each record is one state–chemical pair with the concentration limit (in parts per trillion), the regulation type (MCL, notification level, action level, health advisory, or guideline), the effective date, the statutory or regulatory citation, and whether the state limit is stricter than the federal EPA MCL. The federal MCLs are 4 ppt for PFOA and PFOS (affirmed May 2025); EPA proposed rescinding the MCLs for PFHxS, PFNA and HFPO-DA on 18 May 2026, but that is a proposal only and those MCLs still stand. State limits range from 3 ppt (California, PFHxS) to 400,000 ppt (Michigan, PFHxA). Only drinking water limits are in scope — contaminated-site screening values and groundwater quality standards are excluded even where a state publishes them for the same compounds. Answers 'what is the legal PFAS limit in my state', 'is my state stricter than the federal standard', and 'which PFAS compounds does my state regulate'. (89 records, last verified 2026-08-14, JSON at https://referencesource.org/pfas-drinking-water-limits-by-state/data.json)
- [State pharmacy technician-to-pharmacist supervision ratios](https://referencesource.org/pharmacy-technician-supervision-ratios/): The maximum number of pharmacy technicians a single pharmacist may supervise in each US state, with the practice setting it applies to and any conditions that raise or lower the cap. Each record is one jurisdiction with its ratio rule, the practice setting (community/retail, hospital/institutional, or both), whether conditional increases apply (e.g., higher ratio if technicians are certified, if automated dispensing is in use, or if the setting is institutional), and the regulatory citation. Answers 'how many techs can I supervise in Ohio' (no cap on licensed technicians; max 3 trainees), 'does California allow a higher ratio for certified techs', 'which states have no fixed ratio', and 'what is the pharmacist-to-tech ratio in a hospital in Connecticut'. States range from strict 1:2 caps (Connecticut community, New York community, Tennessee) to no fixed cap (Arizona, Colorado, Florida, Idaho, Iowa, Michigan, Missouri, North Carolina, Ohio, Oregon, Texas, Washington, Wisconsin — at least 13 states where professional judgment applies). (21 records, last verified 2026-08-15, JSON at https://referencesource.org/pharmacy-technician-supervision-ratios/data.json)
- [Pilot licence minimum hours, age and prerequisites by civil aviation authority](https://referencesource.org/pilot-licence-minimum-requirements-by-authority/): The minimum flight hours, minimum age, solo and cross-country requirements and prerequisite licences for each pilot licence and rating, compared across the FAA (United States), EASA (European Union), the UK CAA (retained Part-FCL) and Transport Canada. One record is one stated requirement for one licence under one authority, with the provision citation. Answers 'how many hours do I need for a private pilot licence UK vs US', 'FAA PPL minimum flight hours 61.109', 'EASA PPL 45 hours', 'minimum age for a commercial pilot licence Canada', 'can simulator time count towards a PPL', and 'how many hours to convert an FAA PPL to a UK licence'. The UK kept the EU article numbering after Brexit and then changed the number inside it: FCL.210.A(a) reads 45 hours in EU law and 40 hours in UK retained law, amended with effect from 1 October 2025 by S.I. 2025/878. Same provision identifier, two different values, one of them recent. (203 records, last verified 2026-08-07, JSON at https://referencesource.org/pilot-licence-minimum-requirements-by-authority/data.json)
- [Plumbing fitting and pipe thread standards](https://referencesource.org/plumbing-fitting-thread-standards/): Dimensional specifications for NPT and BSP pipe thread sizes used in plumbing, hydraulic, and gas fittings worldwide. For each nominal pipe size within each standard, gives threads per inch, pitch, major diameter, and minor diameter — the numbers needed to identify an unknown thread or confirm whether two fittings will mate. Combines American (ASME B1.20.1) and British/ISO (ISO 228, ISO 7) standards in one table so the critical differences are visible side by side. (97 records, last verified 2026-08-12, JSON at https://referencesource.org/plumbing-fitting-thread-standards/data.json)
- [PostgreSQL extension compatibility with PostgreSQL major versions](https://referencesource.org/postgres-extension-postgresql-version-compatibility/): Which major versions of PostgreSQL a popular server extension supports, taken from that extension's own documentation, README or changelog -- not from any one cloud vendor's managed-service certification list. Before upgrading a self-hosted PostgreSQL server, an operator running several extensions has to check every extension's supported range separately, because dropping support for an old PostgreSQL version and adding support for a new one happen on each extension's own schedule, not in step with Postgres itself or with each other. Cloud vendors (Azure, AWS/Aurora, DigitalOcean, Alibaba) each publish their own extension-by-version table, but that shows what the vendor has certified for its managed service, which lags or diverges from what the extension's own maintainers say it supports; no vendor-neutral page was found that cites each extension's own documentation. Some projects state a range in one sentence; others state only that a particular release added or dropped a PostgreSQL version, and the range has to be read off those entries. Both are recorded here, and which one a record rests on is visible from its quote. (9 records, last verified 2026-08-31, JSON at https://referencesource.org/postgres-extension-postgresql-version-compatibility/data.json)
- [Financial power of attorney execution requirements by US state — notary, witnesses, or both, quoted from the state's own statute](https://referencesource.org/power-of-attorney-execution-requirements-by-state/): A power of attorney signed without the formalities its own state requires has no legal effect — and those formalities are not uniform: some states accept a notary acknowledgment on its own, some accept either a notary or a set number of witnesses, and some require both. A widely used free guide (last10legal.com's 'Power of Attorney Requirements by State') covers all 50 states in one table, but the page cites zero statute sections anywhere on it — fetched and counted directly on 2026-09-02, the section symbol appears nowhere on the page — so no row on it can be checked against the law it states. Two of the five states here show why that matters: the guide's narrative says Florida requires 'only a notary acknowledgment' while its own table two screens below says '2 witnesses + notary' (the table is the one that matches Fla. Stat. § 709.2105(2)), and it lists Ohio as 'Notary', though Ohio Rev. Code § 1337.25 requires nothing but the principal's signature and makes notarisation the way to earn a presumption that the signature is genuine. This asset states each state's execution requirement against the actual statute, quoted verbatim, so every row can be checked. Every record here is the FINANCIAL (general/durable) power of attorney, not a healthcare power of attorney or advance directive, which most states govern under a different statute with different and usually stricter formalities: Ohio, for example, requires nothing but the principal's signature for a financial POA under Ohio Rev. Code § 1337.25, while § 1337.12 requires a healthcare POA to be either witnessed by two qualifying individuals or notarised. Answers 'do I need a notary for a power of attorney in my state', 'how many witnesses does a power of attorney need', 'is a power of attorney valid without witnesses'. (5 records, last verified 2026-09-02, JSON at https://referencesource.org/power-of-attorney-execution-requirements-by-state/data.json)
- [Planned US generating-unit retirements, as EIA published them in one named month's Electric Power Monthly](https://referencesource.org/power-plant-retirement-schedule/): Every utility-scale US electric generating unit its operator has told EIA it plans to retire, as printed in a single named monthly edition of EIA's Electric Power Monthly: the planned retirement month and year, the plant and unit it belongs to, the operating company, the state, the net summer capacity in megawatts, the generating technology, the fuel and the prime mover. Each record is one generating unit as one edition reported it, and every page names the edition it was read from. Answers 'when is the J.H. Campbell plant retiring', 'which generating units in Illinois are scheduled to retire in 2027' and 'how much coal capacity is scheduled to come off the grid next year' — for the edition named on the page. Three editions are held — EIA's data for April 2026, its data for May 2026 and its data for June 2026 — so where a unit appears in more than one, the pages side by side show whether its planned date moved; 469 units appear in all three and 33 of them carry a different planned date in June than in April, among them all three J.H. Campbell units in Michigan, which moved from May 2026 to August 2026. No single page states the movement, because a record is one unit as one edition reported it. Earlier editions are recoverable: EIA overwrites the previous month's figure on its rolling table, but it archives every monthly issue permanently and each archived issue carries the same table, so an edition can be read back from the issue that published it. These plans do move — EIA's own coverage notes that 'these plans may be more subject to change than usual, with policy shifts recently delaying retirements at several coal plants' — so the edition stamp is part of the fact, not a footnote. (1519 records, last verified 2026-09-24, JSON at https://referencesource.org/power-plant-retirement-schedule/data.json)
- [Power tool battery platform and accessory interface compatibility](https://referencesource.org/power-tool-battery-compatibility/): Which power tool batteries, chargers, adapters and accessory interfaces work with which tools and brands, drawn from the manufacturers' own pages: Milwaukee M18, DEWALT 20V MAX/FLEXVOLT and the DCA1820 18V adapter fit table, RYOBI 18V ONE+, Makita LXT/XGT and the ADP10 charger adapter, the Bosch-led AMPShare alliance, the Metabo-led Cordless Alliance System (CAS), the Bosch/Fein Starlock oscillating multi-tool interface, and Heller's drill-bit shank interface guide. Answers 'does a FLEXVOLT battery work in a 20V MAX tool', 'which brands share the AMPShare / CAS 18V battery', 'will the DCA1820 adapter fit tool model X', and 'is a Starlock blade backward compatible with OIS tools' — questions where the wrong answer means a tool that will not run or a battery that will not charge. (197 records, last verified 2026-08-11, JSON at https://referencesource.org/power-tool-battery-compatibility/data.json)
- [What must pass before the next step: mandated step order in regulated processes](https://referencesource.org/prerequisite-sequencing-regulated-processes/): The mandated order of steps in multi-step regulated processes, from the authority that enforces the order: which inspection or filing must be approved before the next one may happen, what may not proceed until it passes, and the deadline attached to it. One record is one step in one authority's published sequence. Covers municipal building inspection sequences (the rough-in must pass before the wall closes; no concrete before the footing inspection) and the US import Importer Security Filing chain (ISF no later than 24 hours before lading; flexible filings finalised no later than 24 hours before arrival; cargo release withheld without an ISF). Answers 'did I need an inspection before drywall', 'what order do building inspections happen in', 'when does the ISF have to be filed', and 'what happens if the ISF is late'. The sequence is usually published only as prose on the enforcing authority's own page, one jurisdiction at a time; no comparison table exists anywhere. (37 records, last verified 2026-10-27, JSON at https://referencesource.org/prerequisite-sequencing-regulated-processes/data.json)
- [Galvanic series and surface energy of engineering materials](https://referencesource.org/process-compatibility-coatings-adhesives-treatments/): Three published reference tables, each keyed by material, with no material appearing in more than one of them: the ASM seawater galvanic series (steady-state electrode potential in volts vs SCE, 27 metals and alloys); the MIL-STD-889 anodic index (galvanic voltage relative to gold, 19 material groups); and a printing and packaging dyne-level chart (surface energy in dyne/cm plus that chart's own 'needs treatment' column, 34 substrates ranging from PTFE and stainless steel to BOPP film and overprint varnish). Answers 'will these two metals corrode each other if I join them' and 'is this substrate's surface energy high enough for an ink or adhesive to wet it'. It does not say whether a particular coating needs a primer on a particular substrate: no source here states that, so the question this asset was originally built for — can paint go straight onto galvanised steel — is not one it can answer. (80 records, last verified 2026-10-27, JSON at https://referencesource.org/process-compatibility-coatings-adhesives-treatments/data.json)
- [Process server licensing and bond requirements by US state — who must be licensed to serve legal papers, and the dollar bond or insurance figure the statute sets, quoted from the statute itself](https://referencesource.org/process-server-licensing-requirements-by-state/): Most states let any adult who is not a party to the case serve legal papers with no license at all, but a minority regulate it — sometimes only above a volume threshold (Montana: registration required only above 10 services of process a year; California: registration required only above 10 services a year for compensation), sometimes for everyone (Florida, Oklahoma, Nevada). Where regulation exists, the statute usually sets a specific dollar bond or insurance figure: Florida requires a $5,000 surety bond (Fla. Stat. § 48.29), Nevada requires a license plus liability insurance of at least $200,000 (NRS 648.060, 648.135), Alaska requires a $15,000 surety bond (13 AAC 67.920), and Montana requires registration above the 10-service threshold with statutory exemptions for sheriffs, constables and licensed attorneys (MCA 25-1-1101). Two states in this set are regulated but set no bond at all in the current instrument — Arizona's ACJA § 7-204 as revised 10-2025 contains no bond or insurance provision, and Montana's bond section MCA 37-60-311 now reads 'Repealed' — even though vendor and law-firm pages still quote $2,000 and $10,000 figures for them. A widely used free tracker (getlicensemap.com's 'Process Server Requirements' comparison, all 50 states + DC) marks most 'No requirement' rows as only 'medium' confidence by its own label, states no bond or insurance dollar figure for any state in its comparison table, and cites no statute section anywhere on the page — only a single blanket disclaimer that data is 'compiled from official state licensing board websites and verified against multiple sources.' This asset states, per state, whether service of process is regulated at all, the trigger (a volume threshold or a flat requirement), and the specific bond or insurance dollar amount the statute sets, each quoted verbatim from the statute. Answers 'do I need a license to serve legal papers in my state', 'how big a bond does a process server need', 'can I serve my own lawsuit papers without a license'. (10 records, last verified 2026-09-02, JSON at https://referencesource.org/process-server-licensing-requirements-by-state/data.json)
- [CPA continuing professional education (CPE) requirements by US jurisdiction](https://referencesource.org/professional-licensing-continuing-education-by-jurisdiction/): The CPE hours a licensed CPA must complete in each US state and territory to renew, as published by NASBA's National Registry of CPE Sponsors. Covers total hours, reporting period, ethics requirement, and other subject-area mandates. Answers 'how many CPE hours does a CPA need in [state]', 'what is the ethics CPE requirement for CPAs in Texas', 'which states require CPA CPE in government auditing or accounting and auditing', and 'do my CPE hours from another state count'. The scenario as briefed ('professional licensing CE by jurisdiction') spans dozens of independent regulatory datasets across professions; this asset covers CPAs because NASBA publishes a structured, per-jurisdiction page for all 55 boards of accountancy — the only profession in the scenario with a single cross-jurisdiction authority table. Nursing and insurance producer CE are different datasets with different regulators and no equivalent assembled source. (53 records, last verified 2026-10-27, JSON at https://referencesource.org/professional-licensing-continuing-education-by-jurisdiction/data.json)
- [Property tax assessment appeal deadlines by state](https://referencesource.org/property-tax-appeal-deadlines-by-state/): Missing a property-tax appeal window usually forfeits the appeal for that year, and the deadline is a different shape in each state, which is what a generic answer gets wrong. Three shapes appear here: a fixed calendar date that does not move (Nevada's January 15, Nebraska's June 30, New Hampshire's March 1); a count of days running from the day a specific notice was mailed, so the date differs per property (Georgia's 45 days from the assessment notice, Kansas's 30 days from the valuation notice, Maine's 185 days from commitment); and a filing window tied to when the review body sits (Iowa's April 2 to April 30, New York's fourth Tuesday of May in most towns, Vermont's day of the listers' grievance meeting). Texas combines two of them — May 15 or 30 days after the notice of appraised value, whichever is later. 14 states, each with the rule quoted verbatim from the statute or agency form it comes from, and a link to that page. Answers 'when do I have to file a property tax appeal in [state]', 'how many days after my assessment notice can I protest in [state]'. (14 records, last verified 2026-08-24, JSON at https://referencesource.org/property-tax-appeal-deadlines-by-state/data.json)
- [Pseudoephedrine purchase limits: federal gram limits and stricter state rules](https://referencesource.org/pseudoephedrine-purchase-limits-by-state/): How much pseudoephedrine (Sudafed and equivalents) a person may buy, per day and per 30 days, quoted from the statute that sets each limit. Answers 'how much Sudafed can I buy in a month', 'is pseudoephedrine prescription-only in [state]', 'why was my Sudafed purchase blocked'. Federal law caps a buyer at 9 grams in any 30 days, of which no more than 7.5 grams may arrive by post or carrier (21 U.S.C. 844(a)), and caps a seller at 3.6 grams in a calendar day (21 CFR 1314.20). Several states are stricter: Alabama and Illinois 7.5 g/30 days, Indiana, Kentucky, Mississippi, Tennessee and West Virginia 7.2 g/30 days, with annual caps in Indiana (61.2 g), West Virginia (86.4 g) and Tennessee (43.2 g). Others are stricter in kind rather than in grams — Arkansas, Mississippi, Oregon and Tennessee allow the sale only in a pharmacy. Oregon and Mississippi are the two states the open web still gets wrong: both are routinely described as prescription-only, and the statutes quoted here say in terms that the sale is lawful without a prescription. None of these limits is absolute: almost every section ends in a subsection that switches itself off, most often for a product dispensed on a valid prescription, and in several states also for liquid, liquid-capsule and gel-capsule forms, for products labelled for children under 12, and for pharmacists, wholesalers and other licensed handlers acting in the course of business. Those carve-outs are published here as records of their own, one per subsection, so the exception is quoted from the statute rather than summarised. Coverage is the federal baseline plus the 11 states listed above; a state that is absent has not been checked, not been found to match the federal floor. (44 records, last verified 2026-08-19, JSON at https://referencesource.org/pseudoephedrine-purchase-limits-by-state/data.json)
- [OSHA PSM vs EPA RMP: chemical threshold quantities side by side](https://referencesource.org/psm-rmp-chemical-threshold-crossref/): Side-by-side comparison of threshold quantities for hazardous chemicals regulated under OSHA's Process Safety Management standard (29 CFR 1910.119 Appendix A) and EPA's Risk Management Program (40 CFR 68.130). Each record is one chemical with the threshold quantity in pounds that triggers obligations under each program. Many chemicals appear on both lists with different thresholds — chlorine is 1,500 lbs under PSM and 2,500 lbs under RMP; ethylene oxide is 5,000 lbs under PSM and 10,000 lbs under RMP. EPA has ~27 chemicals not on the OSHA list and OSHA has ~79 not on EPA's. Answers 'is [chemical] covered by PSM, RMP, or both?', 'what is the threshold quantity for chlorine under each program?', and 'which chemicals have different thresholds under PSM and RMP?' (225 records, last verified 2026-10-27, JSON at https://referencesource.org/psm-rmp-chemical-threshold-crossref/data.json)
- [Real estate appraiser temporary practice permit requirements by state: fee, duration, and per-year limit](https://referencesource.org/real-estate-appraiser-temporary-permit-by-state/): Federal law (Title XI, 12 U.S.C. 3351(b)) requires every state to let a certified or licensed real estate appraiser from another state temporarily practice on a federally-related assignment, but each state's own appraiser board sets the fee, how long the permit lasts, and how many an appraiser can hold in a year -- and that procedural layer is set independently by each of the roughly 50 state boards, none of which cross-reference each other. Answers 'how do I get a temporary permit to appraise property in [state] if I'm licensed elsewhere', 'how many temporary permits can I get per year in [state]', 'how long is a temporary appraisal permit valid in [state]'. Matters to appraisers taking out-of-state assignments (disaster-area/CAT work, multi-state portfolio lenders, commercial appraisers) -- practicing without the specific state's permit is a licensing-board violation and can void the appraisal underlying the mortgage transaction. No consolidated free source was found; general 'appraiser reciprocity' guides online cover permanent reciprocal licensure, not the separate temporary-permit track, and none assemble it across states. (33 records, last verified 2026-08-28, JSON at https://referencesource.org/real-estate-appraiser-temporary-permit-by-state/data.json)
- [Real estate deed witness requirements by US state — quoted from the state's own statute](https://referencesource.org/real-estate-deed-witness-requirements-by-state/): A deed recorded without the witnesses its state requires can be rejected by the county recorder or, worse, held defective after the fact. Free notary-industry blogs repeat a consistent list of five witness states (Connecticut, Florida, Georgia, Louisiana, South Carolina) but none of the ones checked here cites the actual statute section, and they disagree with each other on the details: how many witnesses, and whether the notary can double as one. Georgia is the case they garble — its statute requires an attesting officer plus one other witness, and a second section says that officer may be a notary public, so the two blog answers ('two witnesses, notary cannot be one' and 'all require two except Georgia') are both wrong in different directions. This asset states each state's requirement in its own statute's words, quoted verbatim, together with the statute's own limits and alternatives — because in three of the five the witness rule is not absolute. Answers 'does a deed need witnesses', 'how many witnesses for a deed', 'can a notary be a witness on a deed'. These five states are the ones checked; the asset makes no claim about the other 45, which have not been read here. (5 records, last verified 2026-09-02, JSON at https://referencesource.org/real-estate-deed-witness-requirements-by-state/data.json)
- [Reckless / excessive-speeding mph thresholds that trigger a criminal charge, by state](https://referencesource.org/reckless-driving-speed-thresholds-by-state/): For each US state: the speed -- stated as an absolute mph, as mph over the posted limit, or both -- at which ordinary speeding stops being ordinary and the statute attaches a separate, heavier offence, quoted exactly as the statute states it, with the classification the statute gives. Answers 'how many over is reckless driving in [state]', 'what speed is reckless driving in [state]', and 'is speeding a crime in [state] or just a ticket'. The mechanism varies sharply. Virginia sets both a relative trigger (20 mph over) and an absolute one (85 mph regardless of the limit), either one alone being reckless driving. North Carolina sets the same pair as alternatives -- more than 15 over OR over 80, a Class 3 misdemeanor. Illinois sets no absolute at all, only a tiered relative one (26-34 over a Class B misdemeanor, 35+ over a Class A). Hawaii, Maine, Nevada, Colorado and Vermont each set a single threshold and each name a different kind of offence for it. And in three states the answer is that there is no criminal threshold: Arizona's excessive-speed statute has no absolute-mph clause at all (contradicting the widely repeated claim that Arizona has an '85 mph absolute' rule), Oregon keeps even 100 mph a traffic violation rather than a crime, and Ohio makes ordinary speeding a minor misdemeanor with a fourth-degree upgrade tied to district speeds rather than to mph over the limit. (12 records, last verified 2026-08-20, JSON at https://referencesource.org/reckless-driving-speed-thresholds-by-state/data.json)
- [How long federal regulations require records to be kept: retention periods, what starts the clock, and who they bind](https://referencesource.org/record-retention-periods-federal/): The retention period each federal regulation attaches to a record type, with the trigger that starts the clock — which is where the confusion lives. OSHA employee exposure records: at least 30 years (29 CFR 1910.1020); OSHA medical records: duration of employment plus 30 years, from the same section; the OSHA 300 injury log: 5 years following the end of the covered calendar year (29 CFR 1904.33); FLSA payroll records: 3 years, but the records wage computations are based on: 2 years (29 CFR 516); HIPAA compliance documentation: 6 years from creation or last effective date, whichever is later (45 CFR 164.316); FMLA records: no less than 3 years (29 CFR 825.500); EEOC personnel records: 1 year, extended if a charge is filed (29 CFR 1602.14); driver qualification files: employment plus 3 years (49 CFR 391.51); hazardous waste manifests: 3 years from shipment acceptance (40 CFR 262.40); drug GMP batch records: 1 year past expiration date (21 CFR 211.180). Answers 'how long do I have to keep payroll records?', 'when can I destroy old employee medical records?', 'how long must a motor carrier keep a driver qualification file after the driver leaves?' (24 records, last verified 2026-10-27, JSON at https://referencesource.org/record-retention-periods-federal/data.json)
- [Recreational boat safety equipment requirements by vessel length](https://referencesource.org/recreational-boat-safety-equipment-requirements-by-length/): Coast Guard rules on what safety gear a recreational boat must carry are not stated as one table -- personal flotation devices, portable fire extinguishers, and visual distress signals are each governed by a different subpart of 33 CFR Part 175, and each is triggered at a different length breakpoint (16, 26, 40, 65 feet). Getting this wrong is a citable offense during a boarding, and the probe run found search results dominated by marina blogs and boating-school pages rather than the regulation itself. Each record is one length band, stating exactly what each subpart requires at that band, quoted from the regulation. Answers 'how many fire extinguishers do I need on a 30-foot boat', 'do I need visual distress signals on a 14-foot boat', 'what size boat needs a throwable PFD'. (11 records, last verified 2026-10-27, JSON at https://referencesource.org/recreational-boat-safety-equipment-requirements-by-length/data.json)
- [US federal employment law thresholds by employee count](https://referencesource.org/regulatory-threshold-triggers/): Employee-count thresholds that trigger US federal employment laws, with the number quoted from the statute itself or from the enforcing agency's own coverage page -- never from a vendor summary. Two kinds of record: a law that states a count (Title VII, ADA, ADEA, GINA, the Pregnancy Discrimination Act, FMLA, COBRA, the ACA employer mandate, WARN, EEO-1 reporting, IRCA) carries that number; a law whose coverage clause names who it covers without stating any employee count (FLSA, ERISA, the OSH Act, USERRA, FCRA, EPPA, the Equal Pay Act, the Consumer Credit Protection Act's garnishment rule, jury-duty protection) carries no threshold at all, is marked 'no employee-count threshold', and quotes the test its coverage does turn on. Note what the second kind does NOT say: that the law covers every employer. It says the statute sets no headcount -- several set some other test, and that test is quoted where the clause states one. A few laws state two counts, because a named class of employer is covered at a lower one -- EEO-1 reporting binds private employers at 100 but federal contractors at 50. Those records carry both numbers, so that reading only the headline figure cannot give the wrong answer to a contractor. Two further shapes exist because reference pages elsewhere get them wrong in the same direction, by printing a number as a threshold when it is not one. A law can cover every employer and separately excuse a small one -- the PUMP Act binds every FLSA employer and lets an employer under 50 out only if compliance would impose an undue hardship -- so that 50 is quoted as an exemption, with its condition attached, and the record carries no threshold. And a threshold can stop existing: the 50-employee affirmative-action programme requirement rested on Executive Order 11246, which was revoked in January 2025, so that record is marked 'threshold revoked' and quotes the order that revoked it rather than the number vendor summaries still publish. (24 records, last verified 2026-10-27, JSON at https://referencesource.org/regulatory-threshold-triggers/data.json)
- [Residential gas furnace fault code lookup by brand](https://referencesource.org/residential-furnace-fault-codes-by-brand/): What the flashing-LED or displayed fault code on a residential gas furnace's integrated control board means, taken from each manufacturer's own manual. A furnace tech reads a blink pattern or a short alphanumeric code off the control board and needs the manufacturer-specific meaning before touching anything; the code alone (e.g. '13', 'A033_F') means nothing without knowing whose board it is. Codes look alike across brands and mean different things: 13 on a Carrier 58MVP is a limit switch lockout, while e13 on a Trane S8V2 is a blower horsepower or OEM ID mismatch. Each record is one fault code from one brand's control board: the code as the board displays it, and the fault the manual names beside it. The corrective procedure is not reproduced here; the linked manual has it. No single source publishes this across brands because each manufacturer's control board firmware defines its own code set independently. (79 records, last verified 2026-08-28, JSON at https://referencesource.org/residential-furnace-fault-codes-by-brand/data.json)
- [Respirator assigned protection factors — federal OSHA and Cal/OSHA, with maximum use concentrations](https://referencesource.org/respirator-assigned-protection-factors/): Assigned protection factors (APFs) for each respirator class under federal OSHA (29 CFR 1910.134 Table 1) and Cal/OSHA (8 CCR 5144), and — the derived layer — the maximum use concentration (MUC) each respirator class supports for a given substance, computed as APF × the applicable exposure limit. The regulation itself states the formula ('The MUC can be determined mathematically by multiplying the assigned protection factor... by the required OSHA permissible exposure limit'), but nobody publishes the computed per-substance table, and OSHA and Cal/OSHA limits differ up to 10× for 66 substances — so the same respirator is adequate federally and inadequate in California for the same job. Answers 'what APF does a half mask have', 'what respirator do I need for styrene at 300 ppm', and 'is my respirator sufficient under Cal/OSHA'. Pairs with the existing workplace-exposure-limits asset (1,184 records, two authorities) — the MUC pages are that asset multiplied through this one. (40 records, last verified 2026-09-24, JSON at https://referencesource.org/respirator-assigned-protection-factors/data.json)
- [TP-Link and ASUS routers and network gear — end-of-life and end-of-support dates by model](https://referencesource.org/router-firmware-support-status/): End-of-life and end-of-support dates for home networking hardware, each read off the vendor's own EOL list and quoted from it. Counted 2026-09-16 across the 987 published records: TP-Link 649 (from TP-Link's dated Home EOL list, which prints an announcement date and an end-of-support date per model and regional SKU) and ASUS 335 (from ASUS's networking EOL page, which prints membership of the end-of-life list and no dates at all), plus three Linksys rows that are software features rather than models — see _curator_2026_09_16. TWO THINGS THIS DOES NOT COVER, both of which the description claimed until 2026-09-16. NETGEAR: no records. Its consumer end-of-service list is a JavaScript model lookup that still returns 'No end of service results found' to a fetcher (re-tested 2026-09-16), and the enterprise EOL PDF its own notes point at downloads to an empty file, so there is nothing here for a NETGEAR owner and the page should not imply there is. Routers only: no. About 600 of the 987 (61%) are routers or mesh systems; the rest are range extenders, USB and PCIe Wi-Fi adapters, powerline kits, a handful of cable modems, access points, a USB hub and a print server — all of them on the vendors' own home-network EOL lists, so they belong here, but a title promising routers alone was describing three fifths of the asset. Answers 'is my TP-Link Archer C2600 still getting security updates', which nobody else has assembled: endoflife.date's device category is 20 consumer phones and tablets with zero router vendors (verified in the 2026-08-10 eol-recon), and the enterprise-gear niche is occupied by refurb resellers. (955 records, last verified 2026-10-05, JSON at https://referencesource.org/router-firmware-support-status/data.json)
- [SBA disaster loan filing deadlines, live](https://referencesource.org/sba-disaster-loan-deadlines/): Every SBA disaster declaration (state/administrative and physical) currently open, with its physical-damage loan application deadline and its Economic Injury Disaster Loan (EIDL) application deadline, taken verbatim from SBA's own Federal Register notice. One record is one declaration. Both dates come from the notice; where the physical loan deadline had already passed on the day this page was last built, the record says so. Where it had not, the record says nothing either way -- a page that can be a week old cannot honestly tell anyone a deadline is still open, so it does not try, and there is no days-remaining count for the same reason. Answers 'when does the SBA disaster loan deadline close for the Illinois severe storms', 'how much time is left to apply for an SBA EIDL loan after my state's disaster declaration', 'is the SBA disaster loan deadline for my county still open'. Retrieval check 2026-08-28 (probe.py, Anthropic, searched, 2 queries): the model itself concluded 'there's no official page that ranks declarations by days left' and pointed at SBA's own portal (one declaration searched at a time, JS-driven) and the Federal Register API as the only two raw sources -- confirming the gap is real and not just under-searched. SBA's own site (disasterloanassistance.sba.gov, lending.sba.gov) is a per-declaration JS search tool, not a nationwide sortable list; no third-party aggregator was found either. (159 records, last verified 2026-10-26, JSON at https://referencesource.org/sba-disaster-loan-deadlines/data.json)
- [Security deposit interest requirements by US state — which states make a landlord pay interest on a held deposit, and at what rate, quoted from the statute](https://referencesource.org/security-deposit-interest-requirements-by-state/): Most states let a landlord hold a security deposit with no interest owed at all. A minority require it — but the rate is rarely a flat number: Connecticut and Chicago reset their rate every year by regulator notice (Connecticut 0.49% for 2026, Chicago 0.01% for 2026), Massachusetts and New Hampshire peg it to the actual bank account or savings rate, and Minnesota is the one flat statutory rate (1% simple, non-compounded). Several also gate the duty on a condition a flat yes/no chart drops — Maryland only above a $50 deposit held 6+ months, New York only in buildings of six or more units, New Hampshire and Massachusetts only once the deposit has been held a full year. Illinois is two independent regimes, not one: the state law (765 ILCS 715) applies only to landlords owning 25 or more units and reads the largest in-state bank's passbook rate, while Chicago's own ordinance applies to any building inside city limits at a separately city-published rate — a landlord with five Chicago units owes interest under the city rule regardless of the state law's 25-unit floor. Each record carries the rate or rate-setting mechanism exactly as the statute or regulator prints it, any condition that gates the duty, and the citation, backed by a verbatim quote from the state's own statute or the regulator's own rate notice. Answers 'does my state require interest on a security deposit', 'what is the security deposit interest rate in Connecticut this year', and 'does the Illinois interest law apply to my building'. (11 records, last verified 2026-09-02, JSON at https://referencesource.org/security-deposit-interest-requirements-by-state/data.json)
- [Security deposit return deadlines by US state — the statutory clock a landlord has to return a tenant's deposit, quoted from the state statute](https://referencesource.org/security-deposit-return-deadlines-by-state/): Every state sets a statutory deadline for a landlord to return a tenant's security deposit, or to send an itemized statement of what is being withheld, after the tenancy ends. The number differs by state (14 days in Hawaii and Nebraska, 45 in Maryland and Virginia), and so does the event that starts the clock — some states run it from termination of the tenancy, some from the day the tenant hands back possession, and some from the day the tenant supplies a forwarding address, whichever is later. That trigger is where most comparison charts are silent and where disputes actually start. Each record is one state, with the deadline exactly as the statute prints it, the clause that starts the clock, any second deadline the same section sets and the condition it applies under, and the statute citation, each backed by a verbatim quote from the state's own statute site. 31 states so far; a state is here only where its own legislature or code revisor serves the section as readable text. Answers 'how long does my landlord have to return my deposit in [state]' and 'which states give landlords the longest to return a deposit'. (31 records, last verified 2026-08-26, JSON at https://referencesource.org/security-deposit-return-deadlines-by-state/data.json)
- [Septic system inspection at property sale: which states require it](https://referencesource.org/septic-inspection-at-property-transfer/): For each US state whose statute, code or environmental agency states a position: whether a septic (onsite sewage) system must be inspected when the property is sold or the deed transfers, who must obtain it, and any exemptions. The sibling of well-water-testing-at-property-transfer, and it carries a date that will make today's answers wrong: Washington's WAC 246-272A-0270 requires, verbatim, 'Beginning February 1, 2027, obtain an inspection ... by a third-party inspector authorized by the local health officer' at the time of property transfer — so every page and model answering 'no statewide requirement in Washington' becomes wrong on that date. Iowa Code 455B.172 already requires a certified time-of-transfer inspection before deed transfer; Massachusetts Title 5 is the flagship law (mass.gov currently 403s our fetcher — use the 310 CMR 15.301 regulation text). Most states have no statewide rule and the requirement is county-level or the lender's; those statements are records too. Answers 'do I need a septic inspection to sell my house in [state]', 'what is a time of transfer inspection', and 'when does Washington's septic inspection rule start'. States whose authority states nothing get no record. (7 records, last verified 2026-08-18, JSON at https://referencesource.org/septic-inspection-at-property-transfer/data.json)
- [What can be mailed: USPS hazardous materials, plus item rules for post and couriers](https://referencesource.org/shipping-restrictions-by-class/): Whether a named substance or item may be mailed, and on what conditions. Five records in six are the USPS hazardous materials table — Publication 52, Appendix A, 2,611 records — which is one row per Department of Transportation proper shipping name ('Ammonium metavanadate', 'Refrigerant gas R-404A', 'Diesel fuel'), carrying its hazard class, UN number, packing group, and whether it is prohibited or restricted in domestic mail by air and by surface. The remaining ~460 records are item-category rules of the kind a sender searches for by name: USPS's own consumer restriction pages, UK postal (Royal Mail, Post Office, Parcelforce, Royal Mail Wholesale), the UPU prohibited-articles entries for the US and UK, US CBP on the de minimis suspension, and six general duties from 49 CFR that bind every mode of transport and therefore bind the mail too. All three private couriers are covered as of 2026-09-01: FedEx (the International Connect prohibited and restricted item lists), UPS (the US Tariff/Terms and Conditions of Service — the items not accepted for transportation, plus the commodity sections on alcohol, marijuana and hemp, biological substances, firearms and ammunition, dry ice, limited quantity packages, hazardous waste and mercury, live animals, perishables, portable electronic devices, and tobacco and vaping), and DHL Express US (the prohibited commodities and the items needing prior approval, from DHL's own US 'what can I ship' page). Answers 'is UN2859 mailable', 'can I mail a lighter', 'USPS lithium battery mailing rules' and 'is [item] prohibited or restricted by [carrier]'. The carrier and scope fields on each record say whose rule it is and where it applies. For whether an item may be carried on an aircraft, which is a different question, see air-travel-item-restrictions — the 100 FAA, TSA, IATA and airline records that used to be in here moved there on 2026-10-07 and every one of their URLs still redirects. (3068 records, last verified 2026-08-03, JSON at https://referencesource.org/shipping-restrictions-by-class/data.json)
- [Small Claims Court Dollar Limits by State](https://referencesource.org/small-claims-court-limits-by-state/): Maximum dollar amount you can sue for in small claims court in each US state and DC, with the controlling statute cited. Includes jurisdictional limit, entity distinctions (individual vs business where applicable), and the court name used in that state. (35 records, last verified 2026-08-31, JSON at https://referencesource.org/small-claims-court-limits-by-state/data.json)
- [SNAP gross income and asset limits by US state (BBCE)](https://referencesource.org/snap-gross-income-limits-by-state/): For each US state: whether it uses Broad-Based Categorical Eligibility (BBCE) for SNAP, the gross income limit it applies (as a percent of the federal poverty level), the asset limit it applies, and — where the state agency publishes one — the actual monthly dollar limit per household size with its effective dates. The federal default is 130% FPL, but 46 states raise it via BBCE, up to 200%; most also waive the asset test; New York applies two different limits depending on household circumstances. Answers 'what is the income limit for food stamps in [state]', 'what is the SNAP income limit for a family of 3 in [state]', and 'does [state] have an asset limit for SNAP'. Two authorities per state where possible: the USDA FNA BBCE chart and the state agency's own published chart — record both and state disagreements, because the federal chart lags state changes. (47 records, last verified 2026-10-07, JSON at https://referencesource.org/snap-gross-income-limits-by-state/data.json)
- [Software end-of-support dates](https://referencesource.org/software-end-of-support/): Release, end-of-active-support, end-of-life (EOL) and end-of-security-support dates per major version of widely used software. Covers LTS release schedules for Node.js, Python, Ubuntu, PostgreSQL, PHP and more. Answers 'when does Node.js 18 reach end of life', 'is Python 3.9 still supported' and 'which iOS SDK version does Xcode require' — the questions assistants get wrong because support dates change every release cycle. (62 records, last verified 2026-10-28, JSON at https://referencesource.org/software-end-of-support/data.json)
- [Software end-of-life date changes — which dates moved and what they were before](https://referencesource.org/software-eol-change-feed/): A change log of software end-of-life and end-of-support dates across 462 products, built by diffing the endoflife.date API between snapshots: for each changed date, the product, release cycle, which field moved, the old value and the new value. Answers 'did the Python 3.9 EOL date change?', 'which Node.js support dates were extended this month?', and 'what EOL dates moved in July 2026?' — the question shape nobody publishes. endoflife.date tracks current state; endoflife.ai publishes a free monthly digest of what is critical now; neither publishes the before-and-after diff. New product additions are also captured. This is a parser case: the API returns structured JSON, no model supplies values. (2360 records, last verified 2026-10-26, JSON at https://referencesource.org/software-eol-change-feed/data.json)
- [Software interface version compatibility](https://referencesource.org/software-interface-version-compatibility/): Which versions of common software dependencies are compatible with each other — currently PyTorch/CUDA and cuDNN/CUDA pairings. Answers 'pip install torch CUDA 12.6 — which versions work together', 'last PyTorch version with CUDA 11.8 wheels', and 'cuDNN version matrix for CUDA 13' — the exact lookup assistants get wrong because these mappings change every release cycle and the model's weights are stale. (417 records, last verified 2026-08-27, JSON at https://referencesource.org/software-interface-version-compatibility/data.json)
- [Solar inverter–battery compatibility](https://referencesource.org/solar-inverter-panel-battery-compatibility/): Which lithium batteries have been tested with which solar inverter brands for closed-loop BMS communication, from the inverter and battery manufacturers' own published compatibility lists. Each record names the inverter brand, the battery brand and model, the communication protocol (CAN, RS485, etc.), minimum firmware versions required, system types supported (off-grid, backup, ESS), and any noted restrictions. Answers 'will battery X talk to inverter Y' — the question the scenario research found assistants hedge on with 'check the manufacturer's compatibility PDF' rather than stating the pairing. (112 records, last verified 2026-10-12, JSON at https://referencesource.org/solar-inverter-panel-battery-compatibility/data.json)
- [Special education initial evaluation deadlines by state — days, day type, and what starts the clock](https://referencesource.org/special-education-evaluation-timelines-by-state/): The legal deadline for completing an initial special education evaluation under the IDEA, per state: how many days, whether those are calendar, school or business days, what event starts the clock, the separate deadline for the eligibility meeting or the first IEP, and how school vacations are counted. Federal 34 CFR 300.301(c)(1) says 60 days from parental consent unless the state sets its own timeframe — and most states do. Minnesota allows 30 school days, Texas 45 school days, Illinois 60 school days, Pennsylvania 60 calendar days excluding the summer, Virginia 65 business days measured from the referral rather than from consent, and Washington moved to 35 school days on 11 June 2026. Answers 'how long does the school have to evaluate my child in [state]' and 'is the 60-day rule calendar days or school days here', which are the questions parents ask when a district has gone quiet. (19 records, last verified 2026-08-31, JSON at https://referencesource.org/special-education-evaluation-timelines-by-state/data.json)
- [SR-22 filing duration by US state — how long you must carry the certificate, quoted from the state DMV](https://referencesource.org/sr22-filing-duration-by-state/): An SR-22 (or the higher-limit FR-44 some states substitute after a DUI) is a certificate an insurer files with the state proving a driver carries the mandated coverage, and states differ both in how long the filing must run — commonly two to five years — and in what restarts the clock, such as a lapse in coverage or a new conviction. Every existing comparison of this figure is an insurance agency's marketing page, none of which cite the state DMV statute or page a figure is drawn from, so a reader has no way to check a number against its source. Each record is one state, with the required filing duration, what starts the clock (conviction date, reinstatement date, or judgment date), which suspension the duration applies to, what happens if coverage lapses during that period, and the DMV page or statute it comes from, backed by a verbatim quote. A state whose own agency states more than one duration — Missouri sets two years after an accident judgment and three after a mandatory-insurance suspension — gets one record per duration rather than a single averaged answer. Answers 'how long do I need an SR-22' and 'when does my SR-22 requirement end'. (11 records, last verified 2026-08-31, JSON at https://referencesource.org/sr22-filing-duration-by-state/data.json)
- [SSI state supplement amounts by state and living arrangement](https://referencesource.org/ssi-state-supplement-amounts-by-state/): The federal SSI payment (the Federal Benefit Rate) is one number nationwide, but most states add a State Supplementary Payment on top of it, and that add-on varies by state and by the recipient's living arrangement (independent living, living in the household of another, domiciliary/personal-care home, nursing home, etc.) in a way no single federal page states. SSA administers the federal payment and publishes the FBR; the supplement is set and published separately by each state's own social-services agency, in its own document, on its own schedule, under its own category names. A record here is one state's one living-arrangement category with the FBR, the state supplement amount, and the date the amount took effect. Answers 'how much is the SSI state supplement in Pennsylvania for someone in a personal care boarding home', 'does Michigan add anything to the federal SSI check for domiciliary care and how much', and 'why is my total SSI payment higher than the federal maximum'. Living-arrangement categories differ in name and count from state to state — record the category exactly as the state's own document names it rather than mapping it onto a shared taxonomy, since the mapping itself is where two states' 'domiciliary care' can mean different things. (25 records, last verified 2026-08-19, JSON at https://referencesource.org/ssi-state-supplement-amounts-by-state/data.json)
- [Annual Report Filing Requirements by State for LLCs and Corporations](https://referencesource.org/state-annual-report-filing-requirements/): Annual or periodic report filing deadlines, fees, and administrative dissolution consequences for LLCs and corporations in each US state and DC. Sourced from each state's Secretary of State or equivalent authority. (39 records, last verified 2026-10-05, JSON at https://referencesource.org/state-annual-report-filing-requirements/data.json)
- [State construction apprentice-to-journeyman ratio requirements by trade](https://referencesource.org/state-apprenticeship-ratios-by-trade/): Apprentice-to-journeyman ratio requirements for construction trades in each US state. Each record is one state and one trade or program, giving the initial ratio (how many journeymen for the first apprentice), the ratio thereafter (how many additional journeymen per additional apprentice), and whether it applies to public works, private, or both. Answers 'what is the apprentice-to-journeyman ratio for [trade] in [state]' and 'how many journeymen do I need before I can hire another apprentice on this job'. Ratios vary widely, and states structure them differently: some (MN) delegate to individual JATC programs, each with its own ratio; others (CA) set a state-wide hourly ratio on public works with trade-specific exemptions. (43 records, last verified 2026-09-03, JSON at https://referencesource.org/state-apprenticeship-ratios-by-trade/data.json)
- [Assistive device lemon laws by state: wheelchair and mobility device repair, replacement and refund thresholds](https://referencesource.org/state-assistive-device-lemon-laws/): When does a wheelchair, scooter or other assistive device qualify for replacement or a refund? A separate set of state 'wheelchair lemon laws' covers assistive devices, and the thresholds are not the ones in the car lemon law: repair attempts range from 2 (Oregon, Minnesota) through 3 (New York, New Jersey, Ohio) to 4 (Wisconsin, Missouri, Massachusetts), and days out of service run from 20 (New Jersey) through 30 in most states to 45 (Ohio). Coverage differs more than the numbers do — Ohio applies its assistive-device law only where the transaction is five hundred dollars or more and expressly excludes hearing aids and some medical devices, while California has no assistive-device lemon law at all and instead gives a 30-day return right on any device 'specifically fit for the buyer's particular needs' covering new and used goods alike. One record per state, quoted from the state statute or the state agency's own consumer page. The best-known assembled version on the open web (disabled-world.com, first published 2009) states that only three states have specific assistive-device protections, which is wrong, and the page that claimed broader coverage is now a dead domain. Answers 'does the lemon law cover wheelchairs', 'how many repair attempts before a wheelchair must be replaced', 'wheelchair lemon law in my state', and 'is my power scooter covered by a lemon law'. (9 records, last verified 2026-08-31, JSON at https://referencesource.org/state-assistive-device-lemon-laws/data.json)
- [Certificate of need programs by US state](https://referencesource.org/state-certificate-of-need-programs/): Which US states operate a certificate-of-need (CON) program for healthcare facilities, and what each program regulates. Each record is one state or DC: whether a CON program exists, which facility types are subject to review, whether any moratorium applies, and the statute citation. Answers 'does [state] require a certificate of need at all' and 'is [a hospital / an ambulatory surgery centre / a nursing home] reviewable in [state]'. This asset does not carry dollar thresholds: for the capital expenditure amount that triggers review, read from each state's own statute, see con-capital-expenditure-thresholds-by-state. (51 records, last verified 2026-10-27, JSON at https://referencesource.org/state-certificate-of-need-programs/data.json)
- [Civil statute of limitations by state and type of claim](https://referencesource.org/state-civil-statute-of-limitations/): How long do you have to sue? Every state sets a different clock for each kind of civil claim, and missing it ends the claim outright — no defence, no appeal on the merits. The spread is wide and it moves: Florida cut its personal-injury period from four years to two in March 2023 (HB 837), Louisiana went the other way in July 2024, and a great many 'statute of limitations by state' tables still print the old figures. One record per state per type of claim — personal injury, medical malpractice, wrongful death, written contract, oral contract, property damage, fraud, defamation, debt — each quoted verbatim from that state's own legislature or revisor, never from a law-firm summary or a code mirror. The period is recorded in the statute's own words ('two years', 'six years'), not converted, because the conversion is where these tables go wrong. Answers 'statute of limitations for personal injury in Ohio', 'how long to sue for breach of contract by state', 'medical malpractice filing deadline', 'defamation statute of limitations'. Adjacent to state-construction-defect-limitations-periods, mechanics-lien-deadlines-by-state and whistleblower-filing-deadlines. This is a deadline lookup, not legal advice: tolling, discovery rules, minority, and claims against government bodies all change the answer, and the record says so where the statute does. (238 records, last verified 2026-08-25, JSON at https://referencesource.org/state-civil-statute-of-limitations/data.json)
- [Comparative fault system and joint and several liability rules by state](https://referencesource.org/state-comparative-fault-joint-liability-rules/): If you are partly at fault for your own injury, can you still sue? And if multiple defendants caused the harm, can you collect the full judgment from just one of them? Every state answers both questions differently, and the answers interact. Four states plus DC still follow contributory negligence, barring recovery if the plaintiff is even 1% at fault. The rest use comparative fault, but split into pure comparative (plaintiff recovers even at 99% fault, reduced by their share), modified 50% bar (plaintiff 50% or more at fault recovers nothing), and modified 51% bar (plaintiff 51% or more at fault recovers nothing). On top of this, joint and several liability rules determine whether a plaintiff can collect the entire judgment from any single defendant or only each defendant's proportionate share -- and many states apply a fault threshold (e.g. joint liability only if a defendant is 25% or more at fault) or limit joint liability to economic damages only. One record per state, each quoting the statute or the controlling court decision in its own words. Answers 'is Virginia a contributory negligence state', 'comparative fault threshold by state', 'joint and several liability in Ohio', 'can I sue if I was 50% at fault', 'which states follow pure comparative fault'. This is a reference lookup, not legal advice: intentional-tort exceptions, environmental-claim exceptions, and products-liability exceptions change the answer in specific cases. (75 records, last verified 2026-08-31, JSON at https://referencesource.org/state-comparative-fault-joint-liability-rules/data.json)
- [State construction defect statute of limitations and statute of repose periods](https://referencesource.org/state-construction-defect-limitations-periods/): Can I still sue for this construction defect? Every US state sets two independent clocks: the statute of limitations (SOL — typically 2-6 years from discovery of the defect) and the statute of repose (SOR — typically 6-15 years from substantial completion, regardless of discovery). Both must be alive to file a claim. California gives 4 years SOL latent / 10 years SOR. Colorado gives 2 years SOL / 6 years SOR. New York has NO statute of repose for buildings. Getting this wrong means losing the right to file entirely. One record per state, sourced from the state's own statute. Answers 'construction defect statute of limitations by state', 'statute of repose for construction in Texas', 'how long can I sue for a building defect'. Adjacent to mechanics-lien-deadlines and construction-retainage-limits. (20 records, last verified 2026-10-27, JSON at https://referencesource.org/state-construction-defect-limitations-periods/data.json)
- [Consumer contract cooling-off and rescission periods by US state and transaction type](https://referencesource.org/state-consumer-cooling-off-periods/): State-by-state comparison of the cancellation windows consumers have after signing specific types of contracts. Each record is one (state, transaction type) pair with the number of days the consumer has to cancel, the notice method required, refund timeline, and the statute citation. Covers transaction types that commonly carry cooling-off periods: home solicitation sales, health club memberships, timeshare purchases, extended warranties, hearing aid purchases, life insurance policies, dating/social referral services, credit repair services, membership travel, reverse mortgages, and door-to-door sales. The federal FTC cooling-off rule (16 CFR 429, 3 business days for door-to-door sales ≥$25) is the baseline; states add their own transaction types and periods on top. Answers 'how many days do I have to cancel a gym membership in [state]', 'what is the cooling-off period for timeshare purchases in [state]', and 'can I cancel this extended warranty'. (31 records, last verified 2026-08-16, JSON at https://referencesource.org/state-consumer-cooling-off-periods/data.json)
- [Dam safety hazard classification, inspection frequency, and owner obligations by US state](https://referencesource.org/state-dam-safety-classification/): State-by-state comparison of dam safety programs: hazard classification systems, inspection frequencies, who must inspect, and dam owner obligations. Each record is one (state, hazard class) pair with the classification name, criteria for that class, required inspection interval, inspector qualifications, and whether inspections are mandatory or voluntary. Covers the ~91,000 non-federal dams in the US. Answers 'how often must my dam be inspected in [state]', 'what hazard classification is my dam', 'do I need a licensed engineer for inspections in [state]', and 'what are the penalties for non-compliance'. The ASDSO published a 50-state summary in 2020 as a PDF; it is now 6 years stale and not structured for search. This asset maintains the current state of each program from each state's own dam safety statute and program pages. (20 records, last verified 2026-08-18, JSON at https://referencesource.org/state-dam-safety-classification/data.json)
- [US state consumer data privacy laws: applicability thresholds by state](https://referencesource.org/state-data-privacy-applicability-thresholds/): For each US state with a comprehensive consumer data privacy law, the thresholds a business must meet for the law to apply: consumer volume (number of state residents whose data is processed), revenue from data sales (percentage of gross revenue derived from selling personal data), revenue floor (minimum annual revenue), and whether these conditions are combined with AND or OR logic — sourced from the state's own statute. Answers 'does [state]'s privacy law apply to my business', 'what are the CCPA thresholds for 2026', 'which state privacy laws have no revenue threshold', 'how many consumers triggers the Virginia privacy law', 'which states changed their privacy law thresholds in 2026' (Connecticut lowers from 100k to 35k consumers on July 1, 2026, and adds a sensitive-data trigger with no volume floor; Indiana, Kentucky, and Rhode Island took effect January 1, 2026), 'which state has the lowest privacy law threshold' (Montana: 25k consumers), and 'does Utah require both a revenue AND consumer threshold' (yes — the only state using AND logic). As of mid-2026, 20 states have comprehensive consumer privacy laws in effect. No single authority publishes the thresholds for all states — each state's statute defines its own — which is why assembled versions come from compliance-software vendors (Feroot, IAPP, MultiState, PrivacyLawMap). The thresholds spread is wide: consumer volume from 25k (Montana) to 175k (Tennessee); revenue percentage from 0% (Texas, no numeric threshold) to 50% (Virginia model); revenue floor from $0 to $26.6M (California, inflation-adjusted). The AND/OR distinction matters: most states use OR (any threshold triggers the law), while Utah requires both revenue AND consumer volume, and Connecticut (CA) requires meeting one of three distinct paths. (18 records, last verified 2026-08-12, JSON at https://referencesource.org/state-data-privacy-applicability-thresholds/data.json)
- [State Earned Wage Access (EWA) Regulatory Frameworks — Classification, Fee Caps, and Licensing Requirements](https://referencesource.org/state-earned-wage-access-regulations/): How is earned wage access regulated in each state? Twelve states have enacted EWA-specific laws as of March 2026, with wide variation: some classify EWA as a loan requiring a consumer lending license, others create a new product category exempt from lending laws. This dataset records each state's product classification, fee caps, licensing or registration requirements, consumer protections, enforcement provisions, and statutory citations. (11 records, last verified 2026-08-18, JSON at https://referencesource.org/state-earned-wage-access-regulations/data.json)
- [State controlled-substance scheduling of xylazine and tianeptine](https://referencesource.org/state-emerging-substance-scheduling/): For each US state that has acted, the controlled-substance schedule it assigns to substances that are NOT federally scheduled: xylazine and tianeptine — sourced from the state's own statute or administrative rule. Answers 'is tianeptine legal in [state]', 'is xylazine a controlled substance in [state]', and 'what schedule is tianeptine in [state]'. Control is entirely state-by-state, it is moving fast (states acted 2023–2026), and crucially the schedule is NOT the same everywhere: tianeptine is Schedule I in Florida, Georgia, Virginia, Minnesota, Delaware and Ohio but Schedule II in Tennessee, North Carolina and Nebraska, and xylazine is Schedule I in Florida, Schedule III in Delaware, Ohio, Nebraska and South Carolina, and Schedule IV in West Virginia. The only cross-state assemblies are a March-2024 PDF (LAPPA, xylazine only) and citation-free listicles. Kratom generally, 7-hydroxymitragynine (controlled federally by DEA temporary order from 2026, and at state level through kratom-product laws rather than schedules) and delta-8 are out of scope — seller sites cover them comprehensively. A state whose instrument cannot be confirmed on a fetched page is omitted, not guessed. (15 records, last verified 2026-08-19, JSON at https://referencesource.org/state-emerging-substance-scheduling/data.json)
- [State employment law headcount triggers that deviate from federal thresholds](https://referencesource.org/state-employment-law-headcount-triggers/): Employee-count thresholds at which state-specific employment laws kick in, focusing on where states deviate from the federal floor. Each record is one state and one law category (mini-COBRA, mini-WARN, state anti-discrimination, state family leave, workers compensation), giving the state's threshold, the federal threshold for comparison, how they differ, and the statute citation. Answers 'at how many employees does [state law] start applying in [state]' and 'does [state] have a mini-COBRA / mini-WARN / state family leave law'. Companion to the existing regulatory-threshold-triggers asset which covers federal thresholds only. (66 records, last verified 2026-10-27, JSON at https://referencesource.org/state-employment-law-headcount-triggers/data.json)
- [State insurance mandates for fertility treatment and IVF coverage](https://referencesource.org/state-fertility-insurance-mandates/): Which US states require private health insurers to cover fertility diagnosis, treatment, or preservation, and the specific terms of each mandate. Each record is one state, stating the mandate type (treatment, preservation only, or offer/cover distinction), which treatments are covered (IVF, GIFT, ZIFT, fertility preservation), cycle or dollar limits, age restrictions, employer-size thresholds, self-insured plan exemption status, religious employer exemption, effective date, and the statute citation. As of 2026, 25 states plus DC require some form of fertility coverage, but the variation is enormous: California (SB 729, effective January 2026) mandates IVF in large group plans with no cycle limit; Arkansas caps lifetime coverage at $15,000 and requires trying cheaper treatments first; Delaware covers six egg retrievals but only for iatrogenic infertility; several states mandate only fertility preservation for cancer patients. Self-insured employer plans (covering ~65% of workers with job-based insurance) are exempt from all state mandates under federal ERISA. Answers 'does my state require insurance to cover IVF', 'how many IVF cycles does my state mandate', 'does the fertility mandate apply to my employer', and 'what are the age limits for mandated fertility coverage in [state]'. (26 records, last verified 2026-10-27, JSON at https://referencesource.org/state-fertility-insurance-mandates/data.json)
- [State Heat Illness Prevention Standards — Temperature Triggers and Required Employer Actions](https://referencesource.org/state-heat-illness-prevention-standards/): At what outdoor temperature must employers provide shade, water, rest breaks, and written prevention plans? Six U.S. states enforce specific heat illness prevention standards with temperature triggers that exceed the stalled federal OSHA proposal. This dataset compares each state's trigger temperatures, required actions at each tier, coverage scope (indoor/outdoor, which industries), acclimatization requirements, and regulatory citations. (7 records, last verified 2026-08-17, JSON at https://referencesource.org/state-heat-illness-prevention-standards/data.json)
- [Homestead exemption amounts by state](https://referencesource.org/state-homestead-exemption-amounts/): How much equity in a home a creditor cannot reach, state by state, taken from each state's own statute. When a money judgment is enforced or a bankruptcy is filed, this figure decides whether the house is sold: equity below it is protected outright, and the difference between $50,000 and $1,000,000 is the difference between keeping a home and losing it. No federal agency compiles the state figures, and the fifty-state tables that do exist are published by law firms and bankruptcy-filing services. Several of these numbers moved recently and are indexed to keep moving: California's adjusts every January against the state CPI, Minnesota's is adjusted periodically by the commerce commissioner, Virginia's is due for a three-year CPI adjustment on 1 April 2027, and Missouri raised its figure by statute in 2026. A table that prints a dollar amount without the indexing rule beside it is wrong from the next adjustment onward, which is why this asset records the statute's own words for both. (18 records, last verified 2026-08-29, JSON at https://referencesource.org/state-homestead-exemption-amounts/data.json)
- [State minimum standards for hospital financial assistance (charity care)](https://referencesource.org/state-hospital-financial-assistance-thresholds/): The income floor a US state's own law forces hospitals to meet before they may bill a patient — stated as a percentage of the federal poverty level, taken one state at a time from that state's statute, never from a compilation. Federal law (IRS section 501(r)) makes every nonprofit hospital publish a financial assistance policy but sets no income threshold at all, so the only enforceable number is the one the state writes down, and roughly half the states write none. Where a state does set one it is genuinely different everywhere: Connecticut sets no free-care line at all but forbids a hospital collecting more than its own cost from an uninsured patient at or below 250% of the poverty income guidelines; California a single 400% line; Oregon free below 200% then a statutory sliding scale to 400%; Maryland free below 200% with six named discount bands running to 500% on financial hardship; Washington 300% free for hospitals in large health systems and 200% for the rest, which replaced a flat 200%/400% rule in 2022 and is still published the old way on most consumer sites. Each record also carries the deadline to apply, which is its own fifty-one-way fragment and the single most consequential thing here — Maryland allows a change of circumstances within 240 days of the first bill, Washington allows an application within two years of the date of service, and federal 501(r) sets 240 days for nonprofit hospitals only. Missing that window is how an unpayable bill becomes a collection account and then a credit event. Answers 'does my state make hospitals give free care and at what income', 'what is the charity care income limit in [state]', 'how long do I have to apply for hospital financial assistance in [state]', 'does my state's rule apply to a for-profit hospital', and 'is the Washington charity care limit 200% or 300%' (both — it depends on the hospital, since 2022). No federal agency publishes this; the one national assembly, a 2021 National Consumer Law Center report, is five years old and its URL now returns 404 at the address KFF still cites, and the Community Catalyst state pages that used to hold it are gone. Page one of a search for it is content-mill sites with no statutory citation, at least one of which states Washington's superseded rule as current. (14 records, last verified 2026-08-26, JSON at https://referencesource.org/state-hospital-financial-assistance-thresholds/data.json)
- [State Insurance Department Complaint Index by Company](https://referencesource.org/state-insurance-complaint-index-by-company/): Every state insurance department publishes, for each licensed insurer and line of business, how many complaints consumers filed against that company and how much premium the company wrote in that state, together with its own summary figure comparing the two. Nobody publishes it across states. Each regulator uses its own file format, its own line-of-business names, its own schedule — and, the part that catches people out, its own arithmetic. Indiana's "Complaint Index" is the company's share of all complaints divided by its share of all premium written in Indiana, so 1.00 is the state average. Michigan's "Complaint Ratio" is complaints per $1 million of written premium, which is a different quantity on a different scale with no meaning at 1.00. Putting those two in one column without saying so would get the asset's whole point wrong. So every record here carries the complaint count and the premium alongside the state's published figure, and quotes the state's own heading for that figure. The raw counts compare across states; the summary figures do not. (622 records, last verified 2026-10-27, JSON at https://referencesource.org/state-insurance-complaint-index-by-company/data.json)
- [State insurer-of-last-resort programs — FAIR Plan / Citizens eligibility and coverage limits](https://referencesource.org/state-insurer-of-last-resort-coverage-limits/): When private insurers won't write a property in a wildfire or hurricane state, the state's residual-market insurer (a FAIR Plan or a corporation like Florida's Citizens) is the fallback — but the dollar limits and the rule that determines who is even eligible differ by state and are stated only in that state's own statute or program announcement. Each record is one state's program, carrying its coverage-category limit and, where the source states one, the rule that makes a property ineligible. Answers 'what's the maximum FAIR Plan payout in California', 'why would Florida Citizens turn down my house', 'which states cap eligibility by a dollar replacement-cost figure vs. a pricing-comparison rule'. (32 records, last verified 2026-10-27, JSON at https://referencesource.org/state-insurer-of-last-resort-coverage-limits/data.json)
- [State health insurance marketplace assistance by state: who runs it, where subsidies start and stop, and what the state adds](https://referencesource.org/state-marketplace-assistance-programs/): One record per US state and the District of Columbia, stating who operates its health insurance marketplace, the income at which premium tax credit eligibility begins there, whether a coverage gap exists below it, and what the state itself adds on top of the federal credit. When the ACA's enhanced premium tax credits lapsed on 31 December 2025 a group of states stood up or expanded their own premium assistance to absorb part of the loss, and they did so on completely different terms: New Mexico backfills the full loss below 400% of the poverty line and caps benchmark premiums at 8.5% of income above it; New Jersey's assistance runs to 600% of the poverty line; Maryland covers the whole loss below 200% and part of it to 400%; California stops at 165%; Colorado pays a flat monthly amount; Washington pays per member per month. In ten states that never adopted the Medicaid expansion, a household below the poverty line still qualifies for nothing at all. Whether the federal cutoff at 400% of the poverty line is a cliff or a slope therefore depends entirely on the state, and no page states the answer for all fifty-one. Answers 'does my state have its own health insurance subsidy', 'what is the income limit for marketplace insurance in [state]', 'am I in the coverage gap', and 'does [state] have a health insurance mandate'. Open enrollment dates are deliberately not carried. The 2027 window is legally unsettled -- a June 2026 ruling vacated the federal rule that would have shortened it, an appeal was open, and the marketplaces' own pages describe their 2027 dates as expected or currently scheduled rather than fixed. A YYYY-MM-DD field cannot carry that hedge, so the dates are omitted rather than published as settled; healthcare.gov and each marketplace state them directly. (51 records, last verified 2026-08-14, JSON at https://referencesource.org/state-marketplace-assistance-programs/data.json)
- [Medical malpractice noneconomic damages caps by state](https://referencesource.org/state-medical-malpractice-damages-caps/): How much can a patient recover for pain and suffering in a medical malpractice case? The cap on noneconomic damages in 48 states and the District of Columbia: the dollar limit where one is in force, and where there is none, whether that is because no statute was passed, a court struck the cap down, or the state constitution forbids caps. New Jersey and Rhode Island are not covered yet. Seventeen states quote their own legislature or constitution directly — Arizona, California, Colorado, Hawaii, Idaho, Iowa, Maine, Massachusetts, Michigan, Montana, Nebraska, Nevada, North Dakota, Ohio, South Carolina, West Virginia and Wyoming. The rest quote the American Medical Association's 50-state damage-cap chart, which summarises the statutes rather than being them; the chart names the statute or case that settles each state, so those records are waiting to be moved to it. A state appears more than once where its law caps different things separately: wrongful-death awards, catastrophic injuries, emergency care in a trauma centre, a per-provider ceiling under a compensation-fund scheme, or total damages rather than noneconomic damages alone. Several caps climb on a schedule (California to $750,000 over ten years, Colorado's noneconomic cap to $875,000 by 2029 and then biennially for inflation, Nevada's to $750,000 by 2028 and then 2.1% a year, Iowa by 2.1% each January from 2028) or are re-set annually for inflation (Michigan, by the state treasurer against the CPI), so a figure is only as good as the date printed beside it — each record gives the source's own as-of date rather than a present-day amount worked out by arithmetic. Whether a cap is still enforceable is reported only where the cited source itself says so. A cap a court has voided stays printed in the code — Illinois' $500,000 cap is still in the compiled statutes and has been void since LeBron v. Gottlieb in 2010 — so a record resting on a statute page says the cap was enacted and that the source does not address its validity, rather than claiming it is in force. Answers 'medical malpractice damages cap in Ohio', 'does Florida have a cap on pain and suffering', 'California MICRA cap', 'noneconomic damages limit by state'. A reference lookup, not legal advice: per-defendant versus per-occurrence application, catastrophic-injury exceptions and wrongful-death distinctions all change the answer, and the record says so where the source does. (62 records, last verified 2026-08-31, JSON at https://referencesource.org/state-medical-malpractice-damages-caps/data.json)
- [State mini-WARN act thresholds: layoff notice requirements beyond federal WARN](https://referencesource.org/state-mini-warn-act-thresholds/): For each US state with its own layoff-notice (mini-WARN) statute: the employer size that makes the law apply, the layoff or closing size that triggers notice, how many days of notice are owed, and whether severance is mandatory — each from the state's own statute with a verbatim quote. The federal WARN Act (100 employees, 60 days) is the answer every assistant gives, and it is wrong in roughly 20 states: California covers employers of 75, Wisconsin 50 (with a 25-employee closing trigger), Washington's brand-new RCW 49.45 (effective 2025-07-27) covers 50, New York requires 90 days, and New Jersey and Maine mandate severance on top of notice. Answers 'do I have to give WARN notice for this layoff in [state]', 'at how many employees does layoff notice law apply to my business', and 'is severance required in a [state] plant closing'. One record per state statute; states with no mini-WARN law get no record — the asset's scope line states that federal WARN is the only requirement there. (11 records, last verified 2026-08-18, JSON at https://referencesource.org/state-mini-warn-act-thresholds/data.json)
- [Minimum marriage age and exceptions by state](https://referencesource.org/state-minimum-marriage-age-exceptions/): What is the youngest age someone can legally marry in this state, and what exceptions exist? Sixteen states and DC set an absolute minimum of 18 with no exceptions. The remaining states allow marriage below 18 through some combination of parental consent, judicial approval, emancipation, or pregnancy exceptions, with age floors ranging from 15 to 17 -- and a handful of states set no statutory age floor at all. This area is changing fast: Oklahoma eliminated its no-floor status in May 2026, Oregon's 18-minimum ban took effect in 2026, and California AB 1267 is pending for the 2026 session. The best existing compilation (Tahirih Justice Center, September 2025) is already stale on these changes and is a PDF. One record per state, each quoting the statutory text verbatim -- taken from the state's own code where the compilation is stale, and otherwise from the compilation's reproduction of that text. Answers 'can a 16 year old get married in Texas', 'minimum marriage age in California', 'which states allow child marriage', 'states that ban marriage under 18'. This is a statutory reference, not legal advice. (56 records, last verified 2026-08-31, JSON at https://referencesource.org/state-minimum-marriage-age-exceptions/data.json)
- [State Opioid Initial Prescribing Limits](https://referencesource.org/state-opioid-prescribing-limits/): Maximum days' supply for a first opioid prescription for acute pain, by state, with the statutory or regulatory citation. Over half the states cap initial prescriptions at 3 to 14 days; some also cap daily dosage in morphine milligram equivalents (MME). (11 records, last verified 2026-08-18, JSON at https://referencesource.org/state-opioid-prescribing-limits/data.json)
- [State OSHA plan civil penalty maximums by violation type compared with federal](https://referencesource.org/state-osha-plan-penalty-maximums/): Maximum civil penalty amounts for workplace safety violations in each OSHA-approved State Plan, compared with the federal OSHA baseline. Each record is one state-plan jurisdiction and one violation type (serious, willful, repeat, other-than-serious, failure-to-abate, regulatory/posting). Gives the state's maximum and minimum penalty, the corresponding federal amount, and key structural differences in how the penalty is computed (severity tiers, employer-size reductions, good-faith adjustments). Answers 'what is the maximum fine for a serious OSHA violation in [state]' and 'how does [state]'s penalty structure differ from federal OSHA'. Special note for 2026: the October 2025 CPI-U was not produced due to the government shutdown, so federal penalties were not adjusted — but some state plans (CA, OR) adjusted independently, widening the gap. (25 records, last verified 2026-08-15, JSON at https://referencesource.org/state-osha-plan-penalty-maximums/data.json)
- [State paid family and medical leave program contribution rates, benefits, and eligibility](https://referencesource.org/state-paid-family-leave-programs/): The mandatory paid family and medical leave programs that US states operate, with each state's current contribution rate, employer/employee split, maximum weekly benefit, wage replacement formula, leave duration, covered reasons, employer-size threshold, and program launch date. As of mid-2026, 14 states plus DC operate programs: California, Colorado, Connecticut, Delaware, DC, Maine, Massachusetts, Minnesota, New Jersey, New York, Oregon, Rhode Island, and Washington. Maryland and Virginia have enacted programs launching in 2028. Contribution rates change annually (Washington rose to 1.13% for 2026; Massachusetts remains at 0.88%). Wage replacement ranges from a flat 67% (New York) to sliding scales giving 90-100% to low-wage workers (Washington, Oregon, Colorado, Minnesota). Family-leave duration ranges from 8 weeks (California, Rhode Island) to 12 weeks in most programs, with Massachusetts allowing 26 weeks to care for a service member. This is a production-edge asset: maintaining current rates across 15+ annually-changing programs was prohibitive for one person and is now economic. Answers 'what is the paid family leave contribution rate in [state]', 'how much paid leave do employees get in [state]', 'does my state have paid family leave', and 'what is the maximum paid leave benefit in [state]'. (15 records, last verified 2026-08-17, JSON at https://referencesource.org/state-paid-family-leave-programs/data.json)
- [State pay transparency laws — salary range disclosure requirements](https://referencesource.org/state-pay-transparency-salary-range-disclosure/): Whether an employer must disclose a salary/wage range in a job posting varies by state on three axes that only the statute text states precisely: the employee-count threshold that triggers the duty, whether the range must appear in the posting itself or only on request, and the penalty for non-compliance. Each record is one state, carrying its statutory citation, the employee-count threshold, what must be disclosed, and the penalty range. Answers 'does a 10-person company in New York have to post a salary range', 'what's the penalty for not disclosing pay in a Washington job posting', 'which states require pay-scale disclosure at 15 employees vs 4'. (14 records, last verified 2026-08-19, JSON at https://referencesource.org/state-pay-transparency-salary-range-disclosure/data.json)
- [US state PFAS product restriction effective dates by category](https://referencesource.org/state-pfas-product-restrictions/): State-by-state PFAS product ban and restriction effective dates. Each record is one state’s ban on one product category, with the effective date, the statute or bill number, the enforcement agency, and any exemptions (e.g. currently unavoidable use). Answers 'can I sell [product] containing PFAS in [state] after [date]', 'which states ban PFAS in cookware', 'when does [state] ban all PFAS products'. Roughly 30 jurisdictions with active or pending PFAS product restrictions as of mid-2026, each with different product category definitions and phase-in schedules. (134 records, last verified 2026-10-06, JSON at https://referencesource.org/state-pfas-product-restrictions/data.json)
- [State prevailing wage law applicability thresholds](https://referencesource.org/state-prevailing-wage-thresholds/): At what project dollar amount does the prevailing wage apply in each state? About 28 US states have their own prevailing wage laws ('Little Davis-Bacon Acts') covering state- and locally-funded construction. The threshold ranges from $0 (New York, Illinois — all public works) to $1,000 (California) to $500,000 (Colorado) to $1,000,000 (Connecticut new construction). The remaining ~22 states have no prevailing wage law. The federal Davis-Bacon Act applies to all federally-funded construction over $2,000 regardless of state. One record per state, sourced from that state's department of labor. Answers 'does prevailing wage apply to my project in Texas', 'what is the prevailing wage threshold in California', 'which states have prevailing wage laws', and 'do I have to pay prevailing wage on a $50,000 state project'. The DOL published the definitive comparison at dol.gov but it returns 403 to non-browser fetchers, so agents and assistants are locked out of the federal reference. (11 records, last verified 2026-08-13, JSON at https://referencesource.org/state-prevailing-wage-thresholds/data.json)
- [State tuition-free college (promise) programs: eligibility rules by state](https://referencesource.org/state-promise-free-college-programs/): For each US state with a statewide tuition-free college ('promise' or 'reconnect') program: the program name, which institutions and credentials it covers, the funding model (last-dollar vs first-dollar, as the page states it), the income limit if any, the age or cohort restriction (recent graduates vs adults 25+), residency requirements, and renewal conditions (credits, GPA, continuous enrollment). Answers 'is community college free in [state]', 'do I qualify for [state]'s free tuition program', and 'does [state]'s promise program cover a bachelor's degree'. Production-edge candidate: roughly 35 programs, each defined by its own statute and agency rules, changing yearly (Massachusetts's MassEducate started fall 2024; Colorado Promise is a tax-credit mechanism unlike any neighbour) — a table nobody maintains because by-hand upkeep across 35 legislatures was prohibitive. No single original exists: the College Promise catalog is an annual PDF report, and page one is scholarship content mills (scholarships360, collegefinance, degreecalc) with no comprehensive current comparison. One authority per record: the state higher-ed agency or the administering college system's own page. The fact/advice split matters here: which program exists, who qualifies, what it covers are facts; 'should I enroll' is not our product. (5 records, last verified 2026-10-06, JSON at https://referencesource.org/state-promise-free-college-programs/data.json)
- [State public works payment bond requirements (Little Miller Acts)](https://referencesource.org/state-public-works-bond-thresholds/): Do I need a payment bond on this public works project, and what are the deadlines? Every US state has a 'Little Miller Act' requiring bonds on public construction contracts, but the contract value that triggers the requirement, the bond amount, the notice a subcontractor must serve to preserve a claim, and the deadline for suing on the bond all differ by state. One record per state and territory, each carrying that state's own statutory citation, plus a federal Miller Act row for comparison. Coverage is payment bond law; a performance bond threshold is recorded only for the handful of states whose source states one. States answer the contract-value question in two different ways and the record says which: 'Payment bond required above' is a figure the source states a bond IS required at or above, and 'Contracts excluded' is a figure or class the source states is outside the requirement, or that the public body may waive. A job just above a 'Contracts excluded' figure is bonded. Answers 'Little Miller Act thresholds by state', 'do I need a bond on a $75,000 public project in Virginia', 'state payment bond requirements for construction', 'payment bond claim deadline by state'. Adjacent to mechanics-lien-deadlines, construction-retainage-limits, and construction-prompt-payment-deadlines. (53 records, last verified 2026-10-27, JSON at https://referencesource.org/state-public-works-bond-thresholds/data.json)
- [State Residential Radon Disclosure, Testing, and Certification Requirements](https://referencesource.org/state-radon-disclosure-requirements/): State laws governing radon in residential real estate transactions vary dramatically. Some states require sellers to disclose known radon test results (Florida, Illinois, New Jersey). Others fold radon into broader environmental hazard disclosure forms (California, Colorado). Some mandate that radon measurement professionals be certified or licensed; others have no licensing requirement. EPA recommends 4 pCi/L as the action level but this is not a legal standard — state action levels may differ. This table gives the disclosure requirement, testing mandate, professional certification requirement, action level, and statute citation for each state. (41 records, last verified 2026-10-27, JSON at https://referencesource.org/state-radon-disclosure-requirements/data.json)
- [Real estate transfer tax by state: rate, who pays, brackets and first-time buyer relief](https://referencesource.org/state-real-estate-transfer-tax/): What does it cost to transfer a house, who is legally liable for the tax, and does a first-time buyer get relief? The state-level transfer, conveyance, deed excise or documentary stamp tax varies from none at all to 3 percent of the price, and the parts that move real money are the parts the assembled tables on the open web get wrong or omit. Delaware charges 3 percent, reduced to 2.5 percent where the county or municipality has enacted its own 1.5 percent tax, apportioned equally between grantor and grantee, with a first-time home buyer reduction of half a percent on the first $400,000 — content-mill tables print a flat '2%' or '2.5%' and none mention the first-time buyer relief. Florida is 70 cents per $100 statewide but 60 cents in Miami-Dade, where the widely-copied tables say Miami-Dade is higher. Washington and Hawaii are graduated by price band; Massachusetts prints a lower rate for Barnstable County than for the rest of the state; Virginia and Wisconsin impose the tax on the grantor by statute while Delaware splits it and New York's mansion tax falls on the buyer. One record per state, quoted from the state revenue department's own page or from the state statute that sets the rate. Answers 'how much is transfer tax in my state', 'who pays transfer tax buyer or seller', 'is there a first-time home buyer transfer tax exemption', and 'what is the deed excise on a $500,000 house'. (22 records, last verified 2026-08-29, JSON at https://referencesource.org/state-real-estate-transfer-tax/data.json)
- [State Right-to-Repair Laws: Coverage, Requirements, and Effective Dates](https://referencesource.org/state-right-to-repair-laws/): Which US states have enacted right-to-repair laws, what products each law covers (electronics, agricultural equipment, powered wheelchairs, automobiles), the price threshold above which parts and documentation must be provided, whether parts-pairing is prohibited, the enforcement mechanism (state AG only vs. private right of action), penalty amounts, and the effective date. As of August 2026, at least 8 states have enacted laws and 28+ have pending legislation. (6 records, last verified 2026-10-27, JSON at https://referencesource.org/state-right-to-repair-laws/data.json)
- [State conformity to federal Section 179 and bonus depreciation rules](https://referencesource.org/state-section-179-bonus-depreciation-conformity/): Whether each US state conforms to the federal Section 179 expensing limit and the 100% bonus depreciation deduction, and what state-specific caps or add-back rules apply when it does not. Each record is one state, stating its conformity status for both Section 179 and bonus depreciation, the state's own Section 179 dollar cap if different from federal, whether the state requires a bonus depreciation add-back, the depreciation method the state uses instead, and a statute or administrative citation. The federal Section 179 limit for 2026 is $2,560,000 with a $4,090,000 phase-out; 100% bonus depreciation was made permanent by the One Big Beautiful Bill Act (January 2025). At least a dozen states decouple from bonus depreciation (California, New York, New Jersey, Pennsylvania, Massachusetts, DC, Connecticut, Maryland, Tennessee, North Carolina, Indiana, Wisconsin among others), and several cap Section 179 far below the federal limit (California: $25,000; New Jersey: $25,000; Pennsylvania: not allowed for corporate income tax). A $480,000 equipment purchase in California produces roughly $51,000 in extra state tax in year one. Answers 'does my state allow bonus depreciation', 'what is the Section 179 limit in [state]', 'do I have to add back bonus depreciation on my state return', and 'which states decouple from federal depreciation rules'. (51 records, last verified 2026-10-27, JSON at https://referencesource.org/state-section-179-bonus-depreciation-conformity/data.json)
- [State small estate affidavit and simplified probate thresholds](https://referencesource.org/state-small-estate-affidavit-thresholds/): Dollar thresholds below which heirs can use a small estate affidavit or simplified probate procedure to transfer a decedent's property without full probate, for each US state and DC. Each record is one jurisdiction, giving the personal property threshold for the affidavit procedure, any separate real property threshold, waiting period, whether a will is required to be absent, inflation adjustment schedule, and statute citation. Answers 'what is the small estate limit in [state]' and 'can I avoid probate for a $X estate in [state]'. Thresholds range from $5,000 (some states) to $208,850 (California, inflation-adjusted triennially). Several states adjust periodically; most do not. No existing compilation cites the underlying statutes, making verification impossible. (13 records, last verified 2026-08-15, JSON at https://referencesource.org/state-small-estate-affidavit-thresholds/data.json)
- [State unemployment insurance taxable wage bases and new employer tax rates by US state](https://referencesource.org/state-ui-taxable-wage-bases/): For each US state and DC, the taxable wage base (the per-employee annual earnings cap on which unemployment insurance tax is owed) and the tax rate assigned to new employers — sourced from each state's labor department or employment security agency. Answers 'what is the unemployment tax wage base in [state]', 'what UI rate do new employers pay in [state]', 'SUTA wage base by state 2026', and 'state unemployment insurance taxable wage base comparison'. The federal FUTA wage base is $7,000 and has not changed since 1983, but states range from $7,000 (California, several others) to over $78,000 (Washington), a 10× difference in the tax base for the same employee. New employer rates also vary widely. Changes take effect annually and states announce at different times (some January 1, some July 1, some fiscal year). No existing source cross-references all 50 states with per-state citations to the actual .gov announcement. (14 records, last verified 2026-08-17, JSON at https://referencesource.org/state-ui-taxable-wage-bases/data.json)
- [US state unclaimed property dormancy periods by property type](https://referencesource.org/state-unclaimed-property-dormancy-periods/): How many years of inactivity before each type of property (wages, checks, insurance proceeds, utility deposits, gift cards, safe-deposit boxes, securities, etc.) must be reported as unclaimed in each US state. Each record is one state + property type with the dormancy period in years, the statute citation, and any conditions (e.g. dual thresholds for solids, different rules for government-held funds). Answers 'how long before uncashed payroll in [state] is escheatable?', 'what is the dormancy period for life insurance in [state]?', and 'which states have the shortest dormancy for [property type]?' — questions where the answer varies by state AND property type, and where getting it wrong triggers penalties and audit exposure. (80 records, last verified 2026-08-15, JSON at https://referencesource.org/state-unclaimed-property-dormancy-periods/data.json)
- [US state universal occupational license recognition laws — conditions and scope](https://referencesource.org/state-universal-license-recognition-laws/): Which US states have passed universal occupational license recognition laws, what conditions they impose (minimum years licensed, good standing, criminal background, exam requirements), which professions are excluded, and whether military spouse provisions are included. Each record is one state's law with its specific conditions. Answers 'does [state] recognize my out-of-state professional license?', 'how long do I need to have been licensed to qualify?', 'are there professions excluded from universal recognition in [state]?', and 'does [state] have a military spouse licensing provision?' — questions where the answer is rapidly changing as states adopt new laws (22+ states as of mid-2026), and where the conditions differ meaningfully between states. (10 records, last verified 2026-08-15, JSON at https://referencesource.org/state-universal-license-recognition-laws/data.json)
- [State Window Tint Darkness (VLT%) Limits by Window Position](https://referencesource.org/state-window-tint-vlt-limits/): Every state sets its own minimum visible-light-transmittance (VLT) percentage for aftermarket window tint, and the limit is usually different for the windshield, front side windows, rear side windows, and rear window -- so the same tint film can be legal in one state and a ticket in the next, and legal on the back windows but not the front. States revise these numbers periodically (Iowa's front-side-window minimum dropped from 70% to 50% effective 1 July 2026 under House File 766, while Iowa's own implementing administrative rule, 761 IAC 450.7, still states the old 70% figure), and the free tint-shop guides that circulate are inconsistent about it: one popular guide's Iowa page, dated before the law was even signed, still shows 70%. A car owner or installer asking 'how dark can I legally tint my windows here' needs the current, per-window, per-state percentage from the statute itself. (83 records, last verified 2026-08-27, JSON at https://referencesource.org/state-window-tint-vlt-limits/data.json)
- [State Worker Classification Tests — Independent Contractor vs Employee](https://referencesource.org/state-worker-classification-tests/): Which legal test each U.S. state uses to distinguish employees from independent contractors (ABC test, common law/right-to-control, or modified ABC), the statutory citation, key exemptions by industry or occupation, and the date the current test took effect. (10 records, last verified 2026-08-17, JSON at https://referencesource.org/state-worker-classification-tests/data.json)
- [Stihl chainsaw chain and bar specifications by model](https://referencesource.org/stihl-chainsaw-chain-and-bar-specs/): Chain pitch, gauge, drive link count, bar length and OEM chain part number for each Stihl chainsaw model and bar combination — including the MSE electric saws and HT pole pruner models the dealer charts list alongside the petrol saws. One row per model per bar length. Answers 'what chain does my Stihl MS261 take', 'Stihl MS440 20 inch bar drive links' and 'Stihl chain part number for [model]' — the multi-variable lookup assistants get wrong by guessing a plausible pitch/gauge combination. (843 records, last verified 2026-08-04, JSON at https://referencesource.org/stihl-chainsaw-chain-and-bar-specs/data.json)
- [Stolen EBT/SNAP benefit replacement policy by US state](https://referencesource.org/stolen-ebt-benefit-replacement-by-state/): For each US state that publishes one: whether SNAP or cash-assistance benefits stolen by electronic theft (skimming, cloning, phishing) are replaced, under what authority, and for what date ranges — after the federal replacement mandate expired on December 20, 2024. The answers now diverge sharply: New York stopped accepting SNAP replacement claims on September 30, 2025 while continuing Cash Assistance replacement; California responded with chip/tap card hardware for all 4.4M cardholders and warns benefits 'might not be replaced'. Every model trained before December 2024 asserts a federal replacement right that no longer exists. Answers 'my EBT benefits were stolen, will they be replaced in [state]', 'is there a deadline to claim stolen SNAP benefits', and 'does [state] replace skimmed cash assistance'. Only states whose agency states a policy get a record; no inference from silence. (9 records, last verified 2026-08-18, JSON at https://referencesource.org/stolen-ebt-benefit-replacement-by-state/data.json)
- [Short-term rental registration rules, city by city, from each city's own page](https://referencesource.org/str-registration-rules-major-cities/): For each major US city, from the city government's own page: whether short-term rentals must register or be licensed, the fee, the licence term, primary-residence and unit-count limits, and dated rule changes. This is the portfolio's first city-level asset — every other jurisdictional asset is state-level — and the rules are churning: Austin rewrote its rules three times in twelve months (Feb 2025 zoning change, Oct 2025 two-year licences and tenant operation, and from July 1, 2026 the city 'will begin requesting removal of unlicensed properties from STR platforms'); Chicago registers 'shared housing units' with $2,500–$10,000 fines per violation; NYC's Local Law 18 registration regime has a Prohibited Buildings List. The incumbents assembling this are property-management software vendors (Lodgify, Hospitable, Truvi) whose city guides are content marketing with no quotes, no dates and uneven freshness — keeping fifty city pages current by hand was the prohibitive part, and it is exactly what the pipeline does. Answers 'do I need a licence to Airbnb my place in [city]', 'what is the fine for an unregistered short-term rental in [city]', and 'what changed in [city]'s STR rules this year'. Cities whose page we cannot reach get no record. (7 records, last verified 2026-10-05, JSON at https://referencesource.org/str-registration-rules-major-cities/data.json)
- [Superseded and deprecated identifier mappings](https://referencesource.org/superseded-standards-mappings/): Withdrawn standards, deprecated API models and retired identifiers mapped to their named successors. Answers 'ISO 9001:2008 withdrawn — replaced by what', 'gpt-3.5-turbo-0613 shut down — migrate to which model', and 'ICD-9-CM superseded by what' — the 'what replaced X' lookup that assistants get confidently wrong on obscure designations because the supersession chain is versioned and scattered. (140 records, last verified 2026-09-30, JSON at https://referencesource.org/superseded-standards-mappings/data.json)
- [Hypodermic needle gauge dimensions (OD, ID, wall thickness, dead volume)](https://referencesource.org/syringe-needle-gauge-dimensions/): The physical dimensions behind a needle gauge number: nominal outer diameter, inner diameter, wall thickness, and dead volume per 25.4 mm of needle. Gauge number alone is not enough to answer 'will this needle prime my 10 uL syringe' or 'what is the ID of a 26s needle' — the wall marker ('s', 'RW') changes the ID at the same gauge, and dead volume is what actually determines whether a small-volume syringe can be primed. Two independent publishers are cited and they agree where they overlap: Hamilton, a syringe maker, covers 34 gauge down to 10 gauge with dead volumes; New England Small Tube, a tube manufacturer, covers 6 to 27 gauge in regular wall with millimetre figures of its own. Each keeps its own naming, so the same needle can appear twice — as '18 gauge needle' and as '18 RW' — with a separate quote behind each. (51 records, last verified 2026-08-27, JSON at https://referencesource.org/syringe-needle-gauge-dimensions/data.json)
- [Texas electrician licensing: practice questions with the answer quoted from TDLR](https://referencesource.org/texas-electrician-licensing-practice-questions/): Practice questions on the Texas electrician licensing path — hours, supervision, application forms and fees, the exam, renewal, continuing education and reciprocity — where the answer to every question is a word-for-word extract from the page the Texas Department of Licensing and Regulation publishes it on. This is NOT National Electrical Code practice. The Texas journeyman and master examinations are open-book NEC examinations and contain no questions on Texas law or TDLR rules at all, so nothing here rehearses exam content and no NEC text is reproduced. What it rehearses is everything around the exam, which is where applications actually fail: that 7,000 hours lets you sit the journeyman exam but 8,000 is required for the licence; that Journeyman Industrial experience cannot be used to qualify for Master; that hours from a career and technology education programme count for Residential Wireman and for nothing else; that a licence expired more than three years cannot be renewed at all. Answers 'how many hours to take the Texas journeyman electrician exam', 'Texas electrician license renewal fee', 'which states does Texas have electrician reciprocity with', 'how many CE hours for a Texas journeyman electrician' and 'what NEC edition is the Texas electrician exam'. The exam moves from the 2023 NEC to the 2026 NEC on 1 September 2026 and both statements are recorded here from the pages that make them. (127 records, last verified 2026-08-25, JSON at https://referencesource.org/texas-electrician-licensing-practice-questions/data.json)
- [Thermocouple type letter to alloy pair, ANSI/IEC color code and tolerance class](https://referencesource.org/thermocouple-type-color-code-crosswalk/): A thermocouple's type letter (J, K, T, E, N, R, S, B, C...) names an alloy pair, but the wire color that identifies it on the bench is set by a different standards body depending on where the part was made or bought — ANSI/ASTM MC96.1 uses one color code, IEC 60584-3 (and JIS C 1602 in Japan) uses a different one for the same alloy pair, and the two schemes disagree on which color means positive. Nobody publishes the type letter, both color codes, the alloy pair and the accuracy tolerance class on one page; a buyer or field technician instead has to hold two vendor charts side by side and hope the type letters line up. A record here is one thermocouple type with its positive/negative alloy names, ANSI positive/negative wire color, IEC positive/negative wire color, usable temperature range, and its ASTM E230 standard/special-limits tolerance alongside its IEC 60584-2 / JIS C 1602 class 1/2/3 tolerance. Answers 'is red positive or negative on a type K thermocouple', 'what color is IEC type J versus ANSI type J', 'what's the accuracy tolerance on a class 2 type N thermocouple', and 'my probe has a yellow and red wire, what type is it and is that ANSI or IEC'. (12 records, last verified 2026-08-19, JSON at https://referencesource.org/thermocouple-type-color-code-crosswalk/data.json)
- [Does paying old debt restart the statute of limitations, by state](https://referencesource.org/time-barred-debt-revival-rules-by-state/): Once a debt's statute of limitations has run, a collector can still call and can still get you to pay something — and in roughly half the states, doing so restarts the clock and makes the whole balance suable again ('zombie debt'). The existing state-civil-statute-of-limitations asset here answers how long the original clock runs; this one answers the question people actually face when a collector calls about an old account: if I make a payment or acknowledge the debt in writing now, does that revive a claim that already expired? States split cleanly and the split is not obvious from the general SOL length. Ohio and California statutes say a signed written acknowledgment or a payment starts a new limitations period running. New York and Minnesota statutes say the opposite in as many words: no payment, written or oral affirmation, or other activity on the debt revives or extends an expired period. One record per state, quoted verbatim from that state's own code, not from a debt-settlement company's summary — those pages are written to encourage the outcome (making a payment) that some of these statutes penalize. Answers 'does paying old debt restart the clock', 'zombie debt revival by state', 'will a partial payment restart the statute of limitations'. This is a deadline/eligibility lookup, not legal advice: whether a specific payment or acknowledgment counts, and what happens after re-aging on a credit report, are separate questions the statute doesn't always answer. (19 records, last verified 2026-09-01, JSON at https://referencesource.org/time-barred-debt-revival-rules-by-state/data.json)
- [TLS certificate and CA requirement effective dates (CA/Browser Forum, Chrome, Mozilla)](https://referencesource.org/tls-certificate-requirement-effective-dates/): Forward-dated schedule of when each TLS certificate and certificate authority requirement takes effect, and which programme it binds. Each record is one requirement with its effective date, the Baseline Requirements section it amends, and the authority imposing it. Covers the CA/Browser Forum TLS Baseline Requirements effective-date table, the Google Chrome Root Program policy, and the Mozilla Root Store Policy. Answers 'when does the 200 day certificate lifetime take effect', 'TLS certificate maximum validity 100 days date', '47 day certificates 2029 timeline', 'when does domain validation reuse drop to 200 days', 'SC-081 phased schedule', and 'when do CAs have to do DNSSEC validation'. The dates changed recently and change again with every ballot, so an answer from model memory describes a world that has already moved; the maximum subscriber certificate validity drops to 200 days on 2026-03-15 and to 100 days on 2027-03-15, and the domain-validation reuse period and the subject-identity reuse period fall on different schedules to each other. (46 records, last verified 2026-08-05, JSON at https://referencesource.org/tls-certificate-requirement-effective-dates/data.json)
- [Toll transponder interoperability: which pass works in which states](https://referencesource.org/toll-transponder-interoperability/): For each US toll transponder programme (E-ZPass, SunPass and SunPass PRO, TxTag and the Central US partners, and the rest as their pages prove reachable): the states and networks where that transponder is accepted, from the operating agency's own interoperability page with a verbatim quote. No authority maintains the national matrix — the E-ZPass Group's member list sits behind an agency login, and the only assembled versions are toll-calculator vendors' blog posts. The answers cross-cut: SunPass PRO works on E-ZPass roads in 19 states but the plain SunPass Mini works in only six; a TxTag works in Kansas and Oklahoma but not on E-ZPass roads; Florida's Turnpike accepts E-ZPass but only via specific transponder models. Answers 'will my E-ZPass work in Florida', 'which toll pass should I get for a Texas-to-Chicago drive', and 'does SunPass work in Georgia'. One record per transponder-programme statement of acceptance, quoting the agency page. (16 records, last verified 2026-10-27, JSON at https://referencesource.org/toll-transponder-interoperability/data.json)
- [Maximum legal vehicle size and weight limits by US state](https://referencesource.org/truck-size-weight-limits-by-state/): For each US state, the maximum legal dimensions and gross weight a vehicle plus load may have on state highways before an oversize/overweight permit is required, from the state's own vehicle code or DOT/DMV page: width, height, semitrailer length, combination length, and gross weight. Height genuinely fragments — 13 feet 6 inches in most eastern states (Florida, Ohio), 14 feet in western states (Washington) — so a load legal in one state needs a permit in the next. Answers 'how tall can a truck be in [state]', 'what is the maximum legal trailer length in [state]', and 'at what point do I need an oversize permit in [state]'. Values verbatim from statute or the agency page; the many exceptions (auto transporters, safety devices, RVs) stay in the source quote, not in extra fields. (5 records, last verified 2026-10-27, JSON at https://referencesource.org/truck-size-weight-limits-by-state/data.json)
- [EPA TSCA Section 6 chemical risk management status: prohibitions, effective dates, and exemptions](https://referencesource.org/tsca-section-6-chemical-risk-management-status/): Status of EPA risk management rules for chemicals found to present unreasonable risk under TSCA Section 6. Each record is one chemical with its current rule status (proposed/final/effective), effective dates for prohibitions, specific uses prohibited, and any exemptions or compliance date extensions. Currently covers ~11 chemicals under Section 6(a) active risk management plus 5 PBT chemicals under Section 6(h). The pipeline has 20+ more chemicals in risk evaluation. Answers 'is [chemical] being regulated under TSCA?', 'when does the prohibition on methylene chloride take effect?', 'which uses of TCE are exempt?', and 'what is the current rule status for 1-bromopropane?' (16 records, last verified 2026-10-27, JSON at https://referencesource.org/tsca-section-6-chemical-risk-management-status/data.json)
- [Unemployment insurance: maximum weekly benefit and weeks of duration by US state](https://referencesource.org/ui-weekly-benefit-and-duration-by-state/): For each US state: the maximum (and minimum, where stated) weekly unemployment benefit amount, the maximum number of payable weeks, and — where the state uses one — the sliding-scale rule that ties duration to the state unemployment rate. Answers 'how much is unemployment in [state]', 'how many weeks of unemployment can I get in [state]', and 'what is the maximum unemployment benefit in [state]'. The claimant-side counterpart to the employer-side wage-base asset proposed 2026-08-17. The confident-wrong conditions are strong: Texas's cap moved from $591 to $605 in October 2025 (indexed annually, so any trained-in figure decays every October); several states no longer offer the 'standard' 26 weeks (NC and FL are at 12, tied to the unemployment rate by formula), and page one is entirely content mills (savingtoinvest, layoffcalc, remotelaws) — the DOL comparison of state UI laws is an annual PDF, not an agent-reachable page. One authority per record: the state workforce agency's own page or the state statute. Record the duration formula verbatim where one exists — the formula is the fact that generic answers flatten. (6 records, last verified 2026-10-28, JSON at https://referencesource.org/ui-weekly-benefit-and-duration-by-state/data.json)
- [UL-Classified replacement circuit breaker cross-reference by panel brand](https://referencesource.org/ul-classified-circuit-breaker-cross-reference-by-brand/): Residential circuit breakers that Underwriters Laboratories has Classified for use in a different manufacturer's load centre, taken from each manufacturer's own catalog. Each record is one classified breaker: its own catalog number, its ampere rating, and the competing brands' breakers it is listed to replace. Answers 'my panel is a Square D and the supply house only has Eaton in stock — what fits'. There is no single public database of this because UL Classification is tested breaker-by-breaker and every manufacturer publishes only its own outbound mapping, never the full grid across competitors. (26 records, last verified 2026-08-26, JSON at https://referencesource.org/ul-classified-circuit-breaker-cross-reference-by-brand/data.json)
- [Underground storage tank financial responsibility minimum coverage amounts](https://referencesource.org/ust-financial-responsibility-minimum-coverage/): Owners and operators of petroleum underground storage tanks (USTs) must prove they can cover the cost of corrective action and third-party damage from a release, in specific dollar amounts set by federal regulation and, in some states, by an alternative state-run mechanism. 40 CFR 280.93 sets the federal baseline: $1 million per occurrence for petroleum marketers, $500,000 for other owners, scaling to $2 million annual aggregate for owners of more than 100 tanks. States can adopt these amounts directly (Florida's own DEP quick-guide reproduces the identical figures) or substitute their own compliance route (California lets an owner use the state UST Cleanup Fund as the mechanism, which caps what the Fund pays and leaves a much smaller amount to be carried privately, sized by the claimant's priority class). Each record is one coverage tier: the dollar amount, whether it is a per-occurrence limit, an annual aggregate or a deductible, who it applies to, and the source section, quoted verbatim. Answers 'how much UST insurance coverage do I need', 'what financial responsibility amount applies to my tanks', 'does my state require more than the federal minimum'. (17 records, last verified 2026-08-26, JSON at https://referencesource.org/ust-financial-responsibility-minimum-coverage/data.json)
- [Underground Storage Tank Operator Training Requirements by State](https://referencesource.org/ust-operator-training-requirements/): Training, certification, and renewal requirements for Class A, B, and C UST operators in each US state, including whether EPA online training is accepted, exam pass thresholds, renewal intervals, and the implementing agency. (7 records, last verified 2026-08-15, JSON at https://referencesource.org/ust-operator-training-requirements/data.json)
- [Winter utility shutoff/disconnection moratorium by state](https://referencesource.org/utility-shutoff-moratorium-by-state/): Whether a utility can disconnect service for non-payment during winter, and under what conditions, varies by state on the exact season window, which utility types are covered, and whether an income test applies. Existing free summaries (e.g. energy-broker lead-gen sites) round this to 'most cold states ban Dec-Mar disconnects', which is not precise enough to answer a specific household's situation. Each record is one state and one class of utility — several states set a different window or income test for water than for electric and gas — carrying the exact moratorium window, covered utility types, and eligibility/income test if any, sourced from the state's own regulation or utility-commission order rather than a secondary summary. Answers 'can my gas get shut off in January in Pennsylvania', 'does New Jersey's winter shutoff protection cover water bills', 'what income level qualifies for winter shutoff protection in my state'. (13 records, last verified 2026-08-19, JSON at https://referencesource.org/utility-shutoff-moratorium-by-state/data.json)
- [Miele vacuum cleaner bag type by model series](https://referencesource.org/vacuum-filter-fitment/): Which Miele dust bag type (GN, FJM, U, or KK) fits a given Miele vacuum cleaner model series. Answers 'which Miele bag do I need for my [model]', 'Miele GN vs FJM — what's the difference' and 'Miele Complete C3 bag type'. The lookup assistants get wrong because the bag type depends on the series, not the product line name. (10 records, last verified 2026-08-04, JSON at https://referencesource.org/vacuum-filter-fitment/data.json)
- [Vehicle emissions testing: which counties require it, in which states](https://referencesource.org/vehicle-emissions-testing-by-state/): For each US state that runs a vehicle emissions inspection (I/M) program: which counties require testing, how often, which vehicles are exempt, and the test type — from the state environmental agency's own page, not a DMV content mill. The answer is county-level, not state-level, and it is moving: North Carolina asked EPA to remove all nineteen of its remaining counties (submitted October 2024), Texas is adding Bexar County (San Antonio) in 2026, and Colorado is changing test types in 2026. Georgia's program covers exactly 13 named metro-Atlanta counties; Texas covers 17 counties across four metros; Colorado covers all or part of 9 Front Range counties; California's list of 34 counties is the fact that testing there is not statewide. Some exemptions move on their own: Virginia's regulation exempts anything older than 'the current calendar year minus 24', so the cut-off year advances every January whether or not anyone republishes the page; Vermont tests the OBD system on vehicles '16 model years old or newer', and New York's OBDII window runs from 'the current year minus 25' to 'the current year minus two' — three rolling cut-offs no static listicle tracks. The north-east answers the county question differently: Vermont, New Jersey, Rhode Island, Delaware and New Hampshire inspect everywhere in the state, and in New York the county list that matters is the Diesel Emissions Metropolitan Area for heavy diesels, while light diesels take the OBDII test anywhere in the state. EPA maintains no current state/county list — only technical guidance. Utah is the clearest case for asking the question county by county: its program is run by five county health departments and they do not share one rule, so Cache County exempts vehicles less than six model years old while Salt Lake, Davis, Weber and Utah counties test them every other year, and Utah County alone tests 1998–2021 diesels. New Mexico's whole program is one county — Bernalillo — under the Albuquerque-Bernalillo County Air Quality Control Board's own regulation. Two states are recorded here as stated absences rather than omitted: Idaho repealed the state I/M requirement effective 1 July 2023, and EPA removed Tennessee's six counties from the federally-approved plan effective 16 September 2021 — though that rule's own footnote says it does not preclude counties keeping a local program, so 'Tennessee has no testing' is not quite what the source says. Two gaps are stated rather than papered over. Ohio names no county anywhere we can reach: OAC 3745-26-01(G) defines the program area by nonattainment status instead of by name, so the cadence, the twenty-five-year scope, the exemptions and the E-Check contract's June 2027 end date are recorded and the county list is not claimed. And Massachusetts carries no cadence, because the annual interval lives in 540 CMR 4.00, which no host that will serve us publishes as text; its scope and exemptions come from Cornell LII's mirror of 310 CMR 60.02 — a mirror, not mass.gov, which blocks us, and one that states it reflects amendments only through 11 August 2017. Answers 'do I need an emissions test to register my car in [county], [state]', 'is [state] getting rid of emissions testing', and 'how old does my car have to be to be exempt in [state]'. States with no program get no record unless their agency states the absence. (28 records, last verified 2026-08-18, JSON at https://referencesource.org/vehicle-emissions-testing-by-state/data.json)
- [Vehicle inspection defect categories: MOT major, minor and dangerous verdicts](https://referencesource.org/vehicle-inspection-defect-categories/): What each vehicle defect is categorised as at a roadworthiness inspection, and therefore whether it fails the test. Each record is one defect under one authority, stating the defect reference, the defect wording as published, and the category (Minor, Major or Dangerous). Covers the DVSA MOT inspection manual for cars, vans and passenger vehicles (classes 3, 4, 5 and 7), the DVSA MOT inspection manual for motorcycles (classes 1 and 2), EU Directive 2014/45/EU Annex I, and the US minimum periodic inspection standards in 49 CFR Appendix A to Part 396. Answers 'is a cracked windscreen a major or minor MOT defect', 'MOT inspection manual zone A windscreen damage', 'does a worn wheel bearing fail an MOT', 'is a tyre bulge dangerous or major', and 'what fails an MOT test'. The same defect usually appears twice, once Major and once Dangerous, separated only by a severity qualifier, and the UK, EU and US verdicts for the same physical fault do not always agree. (1422 records, last verified 2026-08-06, JSON at https://referencesource.org/vehicle-inspection-defect-categories/data.json)
- [Vehicle Lemon Law Eligibility Thresholds by State](https://referencesource.org/vehicle-lemon-law-thresholds-by-state/): State lemon law eligibility thresholds for new motor vehicles in each US state and DC: the time window, mileage limit, number of repair attempts required, and cumulative out-of-service days that trigger the presumption, with the controlling statute cited. (37 records, last verified 2026-08-31, JSON at https://referencesource.org/vehicle-lemon-law-thresholds-by-state/data.json)
- [After a car is repossessed, can you get it back by paying only what's late, or must you pay off the whole loan, by state](https://referencesource.org/vehicle-repossession-cure-rights-by-state/): Every state's UCC Article 9 (§ 9-623) gives a defaulted borrower a right to 'redeem' repossessed collateral, but redemption means paying the ENTIRE remaining balance plus repossession costs -- not just the missed payments. A minority of states layer a second, stronger right on top: a statutory 'right to cure' that lets the borrower keep or recover the vehicle by paying only the arrears (the missed installments plus late fees), restoring the original contract as though the default never happened. Which right a borrower actually has changes the amount of money needed by an order of magnitude, and the practical window differs too. Wisconsin's and Kansas's cure rights attach BEFORE the seller may take the vehicle at all (a notice-and-cure period the creditor has to wait out); California's and Ohio's run AFTER repossession, alongside the redemption right, and expire when the vehicle is sold; where no cure statute applies, the bare UCC redemption right is all there is. The cure right, where a state has one, is usually NOT in that state's UCC article 9 -- it lives in a consumer credit or retail instalment sales act somewhere else in the code (Wis. Stat. ch. 425, K.S.A. ch. 16a, ORC ch. 1317, Cal. Civ. Code ch. 2b), which is why reading only a state's 9-623 makes it look as though there is no cure right when there is one. A person facing repossession who searches for an answer needs to know which of these two shapes their state uses, not just 'you can get your car back' -- probed 2026-09-01: asked unaided which states allow reinstatement by paying only missed payments, the assistant searched five times and its own answer conceded 'not a universal right' while citing a scatter of lending-industry blogs (nortridge.com, repo.buzz), a repossession-agency trade page and consumer-finance content-marketing pages (SoFi, Capital One, Credit Karma) rather than any single verified, statute-cited compilation. One record per state, quoted verbatim from that state's own code: the cure or reinstatement section where the state has one, and that state's enactment of UCC 9-623 where the cited provisions give only redemption. Answers 'can I get my car back without paying it off', 'right to cure vs right to redeem after repossession', 'how many days to reinstate a car loan after repossession'. This is a deadline-and-mechanism lookup, not legal advice: a lender's specific notice and a borrower's specific default history can change what applies in an individual case, which the statute text alone does not resolve. (13 records, last verified 2026-09-01, JSON at https://referencesource.org/vehicle-repossession-cure-rights-by-state/data.json)
- [Vehicle title transfer deadlines and late penalties by state](https://referencesource.org/vehicle-title-transfer-deadlines-by-state/): For each US state: how many days a private-party buyer has to apply for a new certificate of title after buying a vehicle, and what the statute charges for missing the deadline — each from the state's own titling statute with a verbatim quote. There is no federal rule and the answers spread from 10 days (California, Minnesota's notice-of-sale) through 15 (Washington) to 30 (Texas, Ohio, Florida), and the penalties are just as scattered: Florida a flat $20, Washington $50 on the sixteenth day plus $2 for each additional day capped at $125, Texas escalating to $250. Answers 'how long do I have to transfer a car title after buying in [state]', 'what is the penalty for late title transfer in [state]', and 'is there a late fee if I miss the title deadline'. The Washington and Texas penalty formulas are stated as day-rate schedules, so a late-penalty calculator (inputs: state, days late) falls straight out of the data. One record per state statute. (13 records, last verified 2026-08-18, JSON at https://referencesource.org/vehicle-title-transfer-deadlines-by-state/data.json)
- [Vehicle trade-in sales tax credit rules by state -- full price taxed, or only the difference](https://referencesource.org/vehicle-trade-in-sales-tax-credit-by-state/): When you trade a car in, does the state charge sales tax on the full price of the new car, or only on the price left after the trade-in is deducted? On a $40,000 car with a $15,000 trade-in, that choice is about $900 in a 6% state. This covers 47 states, each taken from that state's own Department of Revenue, DMV or statute, with the sentence that states the rule quoted on every record.  Most states deduct the trade-in in full. Four charge tax on the whole price: California, Virginia, Oklahoma and Oregon. Four allow the deduction only in part, and these are the ones commonly reported wrongly -- Michigan caps it in dollars, Ohio allows it on new vehicles but not used, Georgia allows it on dealer sales but not private-party sales, and Rhode Island allows it on passenger vehicles, motorcycles and motor homes only. Alaska, Delaware and Montana charge no state sales tax on a vehicle at all.  Four places are missing, for two different reasons. Hawaii and the District of Columbia are missing because neither one writes such a rule down: Hawaii has no sales tax for a trade-in to be deducted from, and the District taxes a car on its NADA book value rather than on what you actually paid, so a trade-in never enters the sum. Mississippi and New Hampshire are missing only because their government websites would not open for us. We would rather show a gap than copy a figure out of a second-hand reproduction of the law. (47 records, last verified 2026-08-19, JSON at https://referencesource.org/vehicle-trade-in-sales-tax-credit-by-state/data.json)
- [State Property Tax Exemptions for Disabled Veterans — Exemption Amounts, Disability Rating Thresholds, and Eligibility Rules](https://referencesource.org/veteran-property-tax-exemptions-by-state/): How much property tax does a disabled veteran owe in each state? All 50 states offer some form of property tax exemption for veterans with service-connected disabilities, but the exemption amount, qualifying disability rating, home value caps, and surviving spouse provisions vary enormously. This dataset records each state's exemption type, dollar amounts or percentage thresholds by disability rating level, home value limits, surviving spouse eligibility, annual adjustment mechanism, and the specific statutory citation. (9 records, last verified 2026-08-17, JSON at https://referencesource.org/veteran-property-tax-exemptions-by-state/data.json)
- [VOC content limits for architectural coatings by jurisdiction](https://referencesource.org/voc-limits-architectural-coatings/): Maximum volatile organic compound (VOC) content limits for architectural coatings (paint, primer, stain, sealant, varnish) by regulatory jurisdiction. Each record is one coating category under one jurisdiction, stating the VOC limit in grams per liter and the effective date. Covers four jurisdictions: US federal (40 CFR 59 Subpart D), California CARB SCM, SCAQMD Rule 1113, and Texas (30 TAC §115.421). The same category can range from 50 g/L (SCAQMD) to 700 g/L (federal). Answers 'what is the VOC limit for industrial maintenance coatings in California', 'SCAQMD Rule 1113 flat coating VOC limit', and 'federal vs Texas VOC limit for primers'. OTC Model Rule, LADCO and Massachusetts limits are not yet covered — no source with the actual tables has been harvested. (222 records, last verified 2026-10-28, JSON at https://referencesource.org/voc-limits-architectural-coatings/data.json)
- [Wage garnishment limits and exempt earnings by state](https://referencesource.org/wage-garnishment-exemption-thresholds-by-state/): How much of a debtor's pay a creditor may garnish for an ordinary money judgment in each US state, taken one state at a time from that state's own statute. Two numbers usually govern: the share of disposable earnings a creditor may take, and the multiple of an hourly minimum wage below which earnings cannot be touched at all. A few states do it a third way and cap what one creditor may take across a whole CALENDAR YEAR instead, banded by what the debtor is expected to earn that year -- Iowa is the case here, and it states no weekly share of its own at all. Federal law (15 U.S.C. 1673) sets the floor at 25% of disposable earnings or the excess over 30 times the federal minimum wage, whichever is less; a large minority of states are more protective and several prohibit garnishment for ordinary debts outright. Answers 'how much of my paycheck can be garnished in [state]', 'which states protect more than federal law', 'which states do not allow wage garnishment for credit card debt', and 'what would I use to get garnishment limits as data rather than reading law-firm comparison pages'. No federal agency compiles this and the 50-state tables that exist are published by content sites and law firms, most of which state a DOLLAR figure that goes stale the moment a state minimum wage rises. This asset deliberately does not: it records the statutory multiple and the share as the statute prints them, and leaves the arithmetic to the calculator, because the dollar amount appears on no statute page and publishing one as a sourced fact would be an invented value. (39 records, last verified 2026-08-29, JSON at https://referencesource.org/wage-garnishment-exemption-thresholds-by-state/data.json)
- [Workers' compensation medical fee schedule conversion factors by US state — reimbursement rates, service category breakdowns, fee schedule basis, and effective dates](https://referencesource.org/wc-medical-fee-schedule-multipliers-by-state/): State-by-state comparison of workers' compensation medical fee schedule conversion factors — the dollar amounts per relative value unit that determine how much providers are reimbursed for services under workers' comp. Each record is one state with the conversion factor(s) by service category, the fee schedule basis (RBRVS, percentage of Medicare, proprietary, or other), the effective date, the update methodology (e.g. annual adjustment by MEI), and the source citation. Factors vary enormously: Texas uses $72.07 for most services and $90.48 for facility surgery; Minnesota uses $67.29 for medical/surgical. Answers 'what is the workers comp conversion factor in [state]', 'how does my state's workers comp fee schedule compare to Medicare', and 'when does the 2026 fee schedule take effect'. (6 records, last verified 2026-08-18, JSON at https://referencesource.org/wc-medical-fee-schedule-multipliers-by-state/data.json)
- [Workers' compensation waiting periods and retroactive thresholds by US state](https://referencesource.org/wc-waiting-periods-by-state/): For each US state and DC, the number of days an injured worker must wait before wage-replacement benefits begin, and the number of disability days after which the waiting period is paid retroactively — sourced from each state's workers' compensation statute or agency. Answers 'how long is the workers comp waiting period in [state]', 'when does workers comp start paying in [state]', 'does workers comp pay retroactively in [state]', and 'workers compensation waiting period by state 2026'. Waiting periods range from 3 days (most states) to 7 days (Florida, New York, Texas, others). Retroactive triggers range from 7 days (Wisconsin) to 28 days (Texas). No existing cross-state source carries both the waiting period AND the retroactive threshold with per-state statutory citations. (17 records, last verified 2026-08-17, JSON at https://referencesource.org/wc-waiting-periods-by-state/data.json)
- [How often gas pumps and retail scales get inspected, by state](https://referencesource.org/weights-measures-device-inspection-intervals-by-state/): For each US state: how often commercial fuel dispensers and retail scales are tested for accuracy, and who has to arrange it -- taken from the state's own statute where the state sets an interval in law, and from the agency's own description of its programme where it does not. Answers 'how often are gas pumps inspected in [state]', 'how often do scales have to be tested', and 'who is responsible for getting my scale inspected'. The common assumption is that every state inspects annually and that the state pays for it, and both halves of that are wrong often enough to matter: Texas requires a commercial device to be tested only once every four years and lets the department go longer still if funding is short, while Kansas requires annual testing but puts the cost and the arranging on the device's owner, who must hire a licensed service company. No compiled multi-state table exists, because building one means reading fifty statutes and fifty agency sites in fifty formats and re-checking them every year. (6 records, last verified 2026-08-20, JSON at https://referencesource.org/weights-measures-device-inspection-intervals-by-state/data.json)
- [Private well water testing at property sale: which states require it](https://referencesource.org/well-water-testing-at-property-transfer/): For each US state whose statute or health department states a position: whether private well water must be tested when a home is sold, what must be tested for, and who is responsible. Four of the thirteen states here require it by law — New Jersey's Private Well Testing Act (seven named parameters, as a condition of sale), Oregon's ORS 448.271 (the seller tests for arsenic, nitrate and total coliform and reports the results), Rhode Island's RIGL 23-1-5.3 (eight analytes, prior to sale) and Maryland's Real Property 10-713 (since 2024, and the duty is the purchaser's, waivable in writing). The rest state that they do not: Virginia, Minnesota, Vermont, Wisconsin, Tennessee, Florida and Louisiana each say so in their own words, several while noting that the requirement a seller actually meets is the lender's or the county's — Minnesota names the lending institution and Dakota County in the same paragraph, and Washington's health department points at the county and the lender rather than at the state. Connecticut requires notice that testing material exists, not a test. Answers 'do I have to test the well water to sell my house in [state]', 'what does [state] require well water to be tested for at closing', and 'is a well test required for the buyer's loan or by law'. States whose authority states nothing get no record, and a duty to disclose a past test is not a duty to test. (13 records, last verified 2026-08-18, JSON at https://referencesource.org/well-water-testing-at-property-transfer/data.json)
- [Federal Whistleblower Protection Filing Deadlines by Statute](https://referencesource.org/whistleblower-filing-deadlines/): Filing deadlines, covered industries, and enforcement mechanisms for the 25 federal whistleblower protection statutes administered by OSHA. Each statute protects employees who report violations in a specific industry and requires complaints to be filed within a set number of days — from 30 (OSH Act, Clean Air Act) to 180 (SOX, FRSA, ACA). Missing the deadline bars the complaint regardless of merit. (25 records, last verified 2026-10-28, JSON at https://referencesource.org/whistleblower-filing-deadlines/data.json)
- [Will execution requirements by state: witnesses, notarization, holographic and electronic wills](https://referencesource.org/will-execution-requirements-by-state/): What each US state's probate/estates code requires for a will to be validly executed: how many witnesses, whether they must sign in the testator's presence, whether notarization can substitute for witnesses, whether holographic (handwritten, unwitnessed) wills are valid, whether electronic wills are authorized, and whether a self-proving affidavit is available. Each record is one state, from that state's statute. Answers 'how many witnesses does a will need in [state]', 'is a handwritten will valid in [state]', and 'does a will need to be notarized in [state]'. The general answer (two witnesses, no notary) is right in most states and wrong in the ones that matter: holographic wills are valid in roughly half of states and void in the rest, Colorado and North Dakota allow notarization instead of witnesses, Louisiana requires a notary plus two witnesses, and a growing list (Nevada, Florida, Arizona, Indiana...) authorizes electronic wills. People executing DIY wills hit exactly these edges. Existing charts are will-vendor marketing (Gentreo, estate-bee) with no statute citations. (50 records, last verified 2026-08-18, JSON at https://referencesource.org/will-execution-requirements-by-state/data.json)
- [Workers' compensation insurance requirements by US state: employee thresholds, who counts, and industry exceptions](https://referencesource.org/workers-comp-coverage-thresholds-by-state/): For each US state and DC, the minimum number of employees that triggers mandatory workers' compensation insurance, which workers count toward that total (part-time, seasonal, family members, corporate officers, LLC members), which industries face stricter rules (construction and other high-risk trades often require coverage from the first worker regardless of general threshold), and whether owners/officers are included by default or must opt in or out — sourced from that state's own workers' compensation board, labor department, or statute. Answers 'how many employees before I need workers' comp in [state]', 'does [state] require workers' comp for 1 employee', 'do part-time employees count toward the workers' comp threshold in [state]', 'is workers' comp required for construction companies in [state]', 'which states don't require workers' compensation insurance' (Texas is voluntary for private employers; South Dakota effectively voluntary), and 'workers' comp employee minimum by state 2026'. No single authority publishes this for all 50 states — it is 50 state workers' comp boards, each covering only its own jurisdiction, which is why every page-one result is an insurance broker or lead-generation site with no citations. The thresholds range from 1 (most states) through 2 (Virginia), 3 (Arkansas, Georgia, New Mexico, North Carolina), 4 (Florida general, South Carolina), to 5 (Alabama, Mississippi, Missouri, New York, Tennessee). Industry-specific overrides, especially for construction, are the most common source of compliance mistakes and the hardest to find in a single place. (7 records, last verified 2026-08-12, JSON at https://referencesource.org/workers-comp-coverage-thresholds-by-state/data.json)
- [US workplace chemical exposure limits: federal OSHA, Cal/OSHA and NIOSH, side by side](https://referencesource.org/workplace-exposure-limits/): Airborne exposure limits for workplace chemicals as stated by three independent authorities: federal OSHA's Table Z-1 (29 CFR 1910.1000), California's own Table AC-1 (8 CCR 5155), and NIOSH's Pocket Guide entry for the substance. Each record is one substance with the limit that agency publishes for it, the URL it came from and the verbatim line it was read from. **The product is the disagreement**: where more than one of them covers a substance the numbers are frequently far apart — acetone is 1000 ppm federally, 500 ppm in California and 250 ppm recommended by NIOSH; acetaldehyde is 200 ppm federally against 25 ppm in California; 1,1-dimethylhydrazine 0.5 against 0.01 — and exceeding a PEL is what triggers engineering controls, PPE and medical surveillance, so which number applies is consequential. OSHA's and California's are legal limits (PELs); NIOSH's is a recommendation (an REL), which is why it is carried in its own fields and never mixed into the PEL columns. Answers 'what is the exposure limit for [chemical]?', 'is the California PEL different from OSHA's?', 'what is the NIOSH REL for acetone' — the questions where an assistant gives one number without saying whose it is, or hands back an REL when it was asked for the legal limit. (802 records, last verified 2026-08-05, JSON at https://referencesource.org/workplace-exposure-limits/data.json)

## Index

- [Dataset index as JSON — slug, title, record count, one-line summary](https://referencesource.org/datasets.json)
- [Full catalog as JSON — the same list with the whole scope statement for each dataset](https://referencesource.org/catalog.json)
- [Sitemap](https://referencesource.org/sitemap.xml)
- [Method — what "verified" does and does not mean](https://referencesource.org/method/)

Every page except the interactive ones — calculators, list pages
and the /play/ puzzles — is also served as Markdown at the same path
(append `index.md`), the method page included. Dataset and record pages
carry no JavaScript; the interactive pages -- calculators, quizzes,
puzzles, list-page filters -- run one small inline script in the browser
and fetch nothing.