> ## Documentation Index > Fetch the complete documentation index at: https://vaquill.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # Resolve many citations at once > Resolve up to 50 Bluebook citations to their exact sections in one call. The batch form of `GET /us/statutes/resolve`, and the same verdict per citation. Use it when you are checking the citations in a document rather than looking one up: a brief, a memo, or a model's output typically carries dozens, and the single-citation route makes that dozens of round trips. **Cost**: 2 credits per citation, the same as resolving them one at a time. Batching buys a round trip and latency, not a discount. Unresolved citations are charged (a confident "this does not resolve" is the answer you are paying for when verifying a model's output); only citations we failed to process because of a backend error are refunded, and `creditsConsumed` reports what was actually billed. **Duplicates are collapsed** before pricing and before the response is built, so sending the same citation twice costs once and returns one entry. **Every input gets an entry.** An unresolved citation appears with `resolved: false`, never as an omission: a caller checking thirty citations needs to know WHICH failed, and a shorter array cannot say that. ## Example ```python requests.post(url, headers=h, json={ "citations": [ "42 U.S.C. 1983", "16 C.F.R. 444.1", "Cal. Civ. Code 1950.5", ], }) ``` Scope the whole batch with `state` or `corpusType` when every citation belongs to one jurisdiction or corpus (`22 CCR 76227` is California and `8 CCR 1206-2` is Colorado; the acronym alone cannot say which). Omit both for a batch that spans jurisdictions and let each citation name its own. ## OpenAPI ````yaml https://api.vaquill.ai/external/openapi.json post /api/v1/us/statutes/resolve openapi: 3.1.0 info: title: Vaquill Developer API description: >- Public API for legal statutes and legislation. **Authentication**: Pass your API key via the `Authorization: Bearer vq_key_...` header. **Credits**: Each call costs API credits. See `GET /api/v1/api-credits/pricing` for the full pricing matrix. ## Jurisdictions | Jurisdiction | Coverage | `countryCode` | |---|---|---| | **United States** | USC and the Statutes at Large, the CFR and its annual editions, all 52 state and territory statutory codes (50 states plus DC and Puerto Rico), state administrative regulations, court rules, federal and state constitutions, federal agency guidance and adjudications, the Federal Register, the Sentencing Guidelines and US tax treaties. | `US` | See the full [Coverage page](https://www.vaquill.ai/docs/api-guide/coverage) for the jurisdiction-by-jurisdiction breakdown, or call `/us/statutes/coverage` for live counts. Coverage is per (jurisdiction, corpusType) pair, so treat that endpoint as the authoritative list rather than this summary. ## Endpoints - **US Statutes**: Search and retrieve any of the corpora above with full text, resolve a citation to its exact section, browse the statutory hierarchy, read a section as it stood on a past date, and follow its change history, cross-references and defined terms - **Board Watches**: Subscribe to a corpus source and get a webhook or email when it refreshes with real changes (free, API key required) - **Pricing**: Credit costs per endpoint (no auth required) ## Rate limits Limits are enforced per API key and scale with your plan. A `429` response includes a `Retry-After` header. | Plan | Per minute | Per hour | Per day | |---|---|---|---| | Vaquill API Pro | 30 | 500 | 1,000 | | Vaquill API Business | 150 | 2,500 | 10,000 | For full documentation, visit the [API Reference](https://www.vaquill.ai/docs/api-reference/). version: 1.0.0 contact: name: Vaquill API Support url: https://www.vaquill.ai email: support@vaquill.ai license: name: Proprietary url: https://www.vaquill.ai/terms termsOfService: https://www.vaquill.ai/terms servers: - url: https://api.vaquill.ai description: Production security: - ApiKeyAuth: [] tags: - name: US Statutes description: >- Search and retrieve US statutes. Covers the United States Code (USC), Code of Federal Regulations (CFR), all 50 state statutes, constitutions, court rules, executive orders, Federal Register agency rules, agency guidance, and state regulations. Scope a search with the `corpusType` filter. - **Search**: Search across all USC, CFR, state, and regulatory sections - **Section**: Get metadata, citation, hierarchy, and source links for a specific section - **Body**: Get the full text of a section - name: Board Watches description: >- Law-change alerts. Subscribe to a **board** (a tracked corpus source, identified by `corpusType` plus an optional `state`) and get a webhook or email whenever it refreshes with real changes, naming the exact sections that changed. Fetch old-vs-new text for any amended section via the change diff. Boards refresh on their own existing cadence; watching one does not change how often it refreshes. Every endpoint here is **free**: authenticated by API key and rate-limited, but not credit-metered. See the [Law Change Alerts guide](https://www.vaquill.ai/docs/api-guide/alerts) for the full walkthrough. - name: Pricing description: >- Credit pricing and conversion rates. No authentication required. 1 credit = $0.01 USD. externalDocs: description: Full API Reference url: https://www.vaquill.ai/docs/api-reference/ paths: /api/v1/us/statutes/resolve: post: tags: - US Statutes summary: Resolve many citations at once description: >- Resolve up to 50 Bluebook citations to their exact sections in one call. The batch form of `GET /us/statutes/resolve`, and the same verdict per citation. Use it when you are checking the citations in a document rather than looking one up: a brief, a memo, or a model's output typically carries dozens, and the single-citation route makes that dozens of round trips. **Cost**: 2 credits per citation, the same as resolving them one at a time. Batching buys a round trip and latency, not a discount. Unresolved citations are charged (a confident "this does not resolve" is the answer you are paying for when verifying a model's output); only citations we failed to process because of a backend error are refunded, and `creditsConsumed` reports what was actually billed. **Duplicates are collapsed** before pricing and before the response is built, so sending the same citation twice costs once and returns one entry. **Every input gets an entry.** An unresolved citation appears with `resolved: false`, never as an omission: a caller checking thirty citations needs to know WHICH failed, and a shorter array cannot say that. ## Example ```python requests.post(url, headers=h, json={ "citations": [ "42 U.S.C. 1983", "16 C.F.R. 444.1", "Cal. Civ. Code 1950.5", ], }) ``` Scope the whole batch with `state` or `corpusType` when every citation belongs to one jurisdiction or corpus (`22 CCR 76227` is California and `8 CCR 1206-2` is Colorado; the acronym alone cannot say which). Omit both for a batch that spans jurisdictions and let each citation name its own. operationId: resolve_statute_citations_batch requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/StatuteResolveBatchRequest' responses: '200': description: One verdict per submitted citation, in order. content: application/json: schema: $ref: '#/components/schemas/StatuteResolveBatchResponse' '401': description: Invalid or missing API key. content: application/json: schema: $ref: '#/components/schemas/ApiDetailError' '402': description: Insufficient credits. content: application/json: schema: $ref: '#/components/schemas/ApiDetailError' '422': description: Empty `citations`, more than 50, or a bad `state`/`corpusType`. content: application/json: schema: $ref: '#/components/schemas/ApiDetailError' '429': description: Rate limit exceeded. content: application/json: schema: $ref: '#/components/schemas/ApiDetailError' components: schemas: StatuteResolveBatchRequest: properties: citations: items: type: string type: array minItems: 1 title: Citations description: >- Bluebook citation strings to resolve, up to 50 per call. Duplicates are collapsed and order is preserved, so the response's `results` array lines up with the de-duplicated input. Priced PER CITATION at the single-resolve rate, exactly like `POST /us/statutes/sections`: batching is a round-trip and latency win, not a discount. Thirty citations cost the same 60 credits either way and take one request instead of thirty. examples: - - 42 U.S.C. 1983 - 16 C.F.R. 444.1 - Cal. Civ. Code 1950.5 state: anyOf: - type: string maxLength: 2 minLength: 2 - type: 'null' title: State description: >- Optional two-letter jurisdiction to resolve every citation WITHIN. Applies to the whole batch: a batch spanning jurisdictions should omit it and let each citation name its own. Same semantics as the single-citation route -- a constraint, not a hint. examples: - ca corpusType: anyOf: - type: string - type: 'null' title: Corpustype description: >- Optional corpus to resolve every citation WITHIN: `STATE`, `REGULATION`, `STATE_RULES`, `CONSTITUTION`, `STATE_CONSTITUTION`. examples: - REGULATION additionalProperties: false type: object required: - citations title: StatuteResolveBatchRequest description: >- Batch citation resolution. See `POST /us/statutes/resolve`. `/resolve` took 1,159 calls in the 16 days to 2026-08-31, second only to search, and every one of them carried a single citation. The caller shape it is actually serving is an agent handed a brief, a memo or a model's output with thirty citations in it, doing thirty round trips to check them. StatuteResolveBatchResponse: properties: results: items: $ref: '#/components/schemas/StatuteResolveBatchItem' type: array title: Results description: >- One entry per de-duplicated input citation, in the order supplied. An unresolved citation is an entry with `resolved: false`, never an omission: a caller checking thirty citations needs to know which of them failed, and a shorter array cannot say. resolvedCount: type: integer title: Resolvedcount description: How many of the submitted citations resolved. default: 0 examples: - 2 count: type: integer title: Count description: Total entries in `results`, after de-duplication. default: 0 examples: - 3 processingTimeMs: type: number title: Processingtimems description: Server-side time for this request in milliseconds. default: 0 examples: - 610.2 creditsConsumed: type: number title: Creditsconsumed description: >- Credits actually charged. Read it rather than multiplying the list price by your input length: a backend failure on some citations refunds those, so this can be lower than 2 x `count`. default: 0 examples: - 6 type: object title: StatuteResolveBatchResponse description: Response for `POST /us/statutes/resolve`. ApiDetailError: properties: detail: type: string title: Detail description: >- Human-readable reason, safe to surface to an end user. Branch on the HTTP status rather than on this string: the wording is not part of the contract and may be reworded, but 401 (bad key), 402 (out of credits), 403 (missing scope), 404 (no such resource) and 429 (rate limited) are stable. examples: - Insufficient API credits. type: object required: - detail title: ApiDetailError description: |- Error envelope the API actually returns. All errors (401/402/403/404/422/429/5xx) come back as a single `detail` string (FastAPI default), e.g. `{"detail": "Insufficient API credits."}`. Documenting the real shape so client code can rely on it. StatuteResolveBatchItem: properties: resolved: type: boolean title: Resolved description: True when this citation resolved to an exact section. inputCitation: type: string title: Inputcitation description: The citation string you asked to resolve, echoed back. section: anyOf: - $ref: '#/components/schemas/StatuteResult' - type: 'null' description: The resolved section, or null when this citation did not resolve. subsection: anyOf: - type: string - type: 'null' title: Subsection description: >- Parsed pinpoint subsection when the citation carried one. See the single-citation route for the full semantics, including the case where the publisher issues a larger unit than the citation names. type: object required: - resolved - inputCitation title: StatuteResolveBatchItem description: >- One citation's verdict inside a batch response. Deliberately the same field names as `StatuteResolveResponse` minus the per-request bookkeeping, so a caller migrating from the single route reads each item with the code it already has. StatuteResult: properties: actId: type: string title: Actid description: >- Unique section identifier (e.g., 'USC_T42_C21_S1983', 'CFR_T17_P240_S240_10b5_1'). citation: anyOf: - type: string - type: 'null' title: Citation description: >- Full citation (e.g., '42 U.S.C. § 1983 (2024)', '17 C.F.R. § 240.10b5-1 (2026)'). citationShort: anyOf: - type: string - type: 'null' title: Citationshort description: Short citation (e.g., '42 U.S.C. § 1983', '17 C.F.R. § 240.10b5-1'). title: anyOf: - type: string - type: 'null' title: Title description: Section title. corpusType: anyOf: - type: string - type: 'null' title: Corpustype description: >- One of `USC`, `CFR`, `STATE`, `CONSTITUTION`, `FEDERAL_RULES`, `STATE_CONSTITUTION`, `STATE_RULES`, or `EXECUTIVE_ACTION`. state: anyOf: - type: string - type: 'null' title: State description: >- 2-letter lowercase state code (e.g. `ca`, `tx`) when the row belongs to a state corpus. `federal` for federal rows. source: anyOf: - type: string - type: 'null' title: Source description: >- The named source within `corpusType`, for corpora that fold several independently filterable bodies of law into one token. `FEDERAL_RULES` sources: `frcp` (Federal Rules of Civil Procedure), `frcrp` (Federal Rules of Criminal Procedure), `fre` (Federal Rules of Evidence), `frap` (Federal Rules of Appellate Procedure), `frbp` (Federal Rules of Bankruptcy Procedure), `sct` (Rules of the Supreme Court of the United States). `CFR` sources: `far` (Federal Acquisition Regulation (48 C.F.R. ch. 1)), `dfars` (Defense Federal Acquisition Regulation Supplement (48 C.F.R. ch. 2)) (both are already part of `CFR`; this only splits the existing Title 48 data by chapter, it does not add new sections). `AGENCY_GUIDANCE` sources: `administrative_guidance` (Synthesized administrative guidance (e.g. SALT cap, CTC, 401(k) limits)), `ssa_ruling` (Social Security Administration Rulings), `irs_rev_proc` (IRS Revenue Procedures), `irs_notice` (IRS Notices), `irs_rev_rul` (IRS Revenue Rulings), `irs_announcement` (IRS Announcements), `irs_irm` (Internal Revenue Manual (IRS internal procedure)), `merger_guidelines` (DOJ & FTC Merger Guidelines (2023)), `doj_leniency` (DOJ Antitrust Division Leniency Policy), `doj_business_review` (DOJ Antitrust Division Business Review Letters (1991-2021)), `cms_iom` (CMS Medicare Internet-Only Manuals (instruction to Medicare contractors, not a regulation)), `copyright_circular` (US Copyright Office Circulars), `copyright_compendium` (Compendium of U.S. Copyright Office Practices, Third Edition (2014, 2017 and 2021 editions)), `doj_justice_manual` (DOJ Justice Manual), `uscis_policy_manual` (USCIS Policy Manual), `mpep` (USPTO Manual of Patent Examining Procedure (MPEP)), `tmep` (USPTO Trademark Manual of Examining Procedure (TMEP)), `cftc_staff_letter` (CFTC Staff Letters (no-action, exemptive, interpretative; 2008-present)), `fincen_ruling` (FinCEN Administrative Rulings), `fincen_guidance` (FinCEN Guidance (alerts, advisories, notices, bulletins, fact sheets)), `fincen_boi_faq` (FinCEN Beneficial Ownership Information FAQs), `fincen_boi_rule_qa` (FinCEN BOI Rulemaking Q&As (final rule and interim final rule)), `fincen_boi_compliance_guide` (FinCEN Small Entity Compliance Guide (Beneficial Ownership Information Reporting)), `fincen_amla_material` (FinCEN Anti-Money Laundering Act of 2020 Implementation Material), `frb_sr_letter` (Federal Reserve Supervision and Regulation (SR) / Consumer Affairs (CA) Letters), `occ_bulletin` (OCC Bulletins), `occ_interpretive_letter` (OCC Interpretive Letters), `fdic_fil` (FDIC Financial Institution Letters (FILs)), `cfpb_supervisory_guidance` (CFPB Supervisory Guidance), `cfpb_circular` (CFPB Consumer Financial Protection Circulars), `dfars_pgi` (DFARS PGI (Procedures, Guidance, and Information)), `ftc_advisory_opinion` (FTC Advisory Opinions), `ftc_policy_statement` (FTC Policy Statements (1967-present)), `nlrb_gc_memo` (NLRB General Counsel Memoranda), `nlrb_advice_memo` (NLRB Division of Advice Memoranda (rolling 10-year window, not the full archive)), `cpsc_advisory_opinion` (CPSC Office of General Counsel Advisory Opinions (historical, 1970s-2012)), `cpsc_secg` (CPSC Small Entity Compliance Guides), `whd_opinion_letter` (DOL Wage and Hour Division Opinion, Ruling and Administrator Interpretation Letters (FLSA, FMLA, DBRA, SCA, CCPA, MSPA; 1993-present)), `whd_foh` (DOL Wage and Hour Field Operations Handbook (WHD internal enforcement procedure, not law; 22 chapters)), `bis_advisory_opinion` (BIS (Bureau of Industry and Security) Advisory Opinions), `ddtc_commodity_jurisdiction` (DDTC (Directorate of Defense Trade Controls) Commodity Jurisdiction Determinations), `ddtc_guidance` (DDTC (Directorate of Defense Trade Controls) Policy Guidance Documents), `ofac_faq` (OFAC (Office of Foreign Assets Control) Frequently Asked Questions), `hhs_ocr_hipaa_faq` (HHS Office for Civil Rights HIPAA FAQs), `hhs_ocr_hipaa_guidance` (HHS Office for Civil Rights HIPAA Guidance Materials), `hhs_ocr_resolution_agreement` (HHS Office for Civil Rights HIPAA Resolution Agreements and Civil Money Penalties), `fcc_declaratory_ruling` (FCC (Federal Communications Commission) Declaratory Rulings), `ferc_policy_statement` (FERC (Federal Energy Regulatory Commission) Policy Statements), `doe_appliance_guidance` (DOE Appliance Standards Guidance and FAQs), `eeoc_guidance` (EEOC (Equal Employment Opportunity Commission) Enforcement and Policy Guidance, including Compliance Manual sections), `irs_written_determination` (IRS Written Determinations under 26 U.S.C. § 6110: Private Letter Rulings (PLR), Technical Advice Memoranda (TAM) and Chief Counsel Advice (CCA). Each is directed only to the taxpayer who requested it and, by § 6110(k)(3), may not be used or cited as precedent). `US_TAX_TREATY` sources: `us_tax_treaty` (U.S. Bilateral Income and Estate Tax Treaties), `us_tax_treaty_technical_explanation` (Treasury Technical Explanations (article-by-article commentary on a tax treaty)), `senate_treaty` (Senate Treaty Records (transmittal, parties and proceedings)), `senate_treaty_resolution` (Senate Resolutions of Advice and Consent, including the reservations, understandings and declarations that narrow a treaty's effect in US law), `senate_treaty_document` (Treaty Documents (CDOC TDOC series): the President's message transmitting a treaty to the Senate, with the instrument's text). `STATE_AGENCY_GUIDANCE` sources: `state_insurance_bulletin` (State Department of Insurance Bulletins), `state_financial_bulletin` (State Financial-Institutions Regulator Bulletins (banking, credit unions, trust companies, escrow agents, consumer lenders, money transmitters; AZ and OR only, where that regulator shares an index with the insurance regulator)). `AGENCY_ADJUDICATION` sources: `mspb_precedential` (MSPB Precedential Decisions), `mspb_nonprecedential` (MSPB Nonprecedential Orders), `olc_opinion` (DOJ Office of Legal Counsel Opinions (official bound volumes, 1933-2020)), `cfpb_enforcement_action` (CFPB Enforcement Actions), `sec_commission_opinion` (SEC Commission Opinions and Adjudicatory Orders), `bia_precedent` (BIA Precedent Decisions (I&N Dec.)), `ag_precedent` (Attorney General Immigration Decisions (I&N Dec.)), `immigration_admin_precedent` (INS and USCIS Administrative Precedent Decisions (I&N Dec.)), `nlrb_board_decision` (NLRB Board Decisions (bounded window; see coverage.mdx for the exact years covered)), `ftc_administrative_decision` (FTC Part 3 Administrative Decisions). Pass it back as the `source` search filter to scope to just this one source. Null for corpora with only one source. examples: - sct year: anyOf: - type: integer - type: 'null' title: Year description: >- The year this row was ingested, not the year of the law. Most ingesters stamp the capture year (`time.gmtime().tm_year`) and a few pin a literal, so 1,575,300 statute sections currently read 2026. **Do not filter or reason about currency with it.** `lastAmendedYear` carries the amendment year, `currentThrough` and `currencyNote` carry the publisher's own currency statement, and `goodLawStatus` carries the status. relevanceScore: anyOf: - type: number - type: 'null' title: Relevancescore description: >- Relevance score, normalized to roughly 0-1. Higher means a better match for ranking within one response. It is a relative ranking signal, not a calibrated confidence or probability, so do not compare scores across different queries or treat a fixed value as a quality threshold. Exception: a query that resolves to an exact citation (e.g. '42 U.S.C. § 1983', 'Cal. Civ. Code § 1950.5', 'Fed. R. Civ. P. 12') always scores that section 1.0, since it is a certain match rather than a ranked one -- a natural-language or keyword query never returns 1.0 by comparison. **null on any endpoint that did not rank**: fetching a section by id, a batch fetch, or a section embedded in an intelligence response. It defaulted to 0.0 there, which reads as 'worst possible match' on a section the caller asked for by name. excerpt: type: string title: Excerpt description: Text excerpt (up to 500 characters). default: '' body: anyOf: - type: string - type: 'null' title: Body description: >- Full plain text of the section. Present ONLY when the request set `includeBody: true`, and null on any row whose text could not be resolved (those rows are not charged for a body). This is the actual statutory text, not the `excerpt`. The two are different things and the difference matters for quoting: `excerpt` is a ranking preview windowed around the match, so it can begin mid-section and drop a leading subsection marker -- measured 2026-09-02, four of five California rows lost their opening `(a) `. `body` is the document as the publisher printed it. examples: - (a) If within a reasonable time after written or oral notice... titleNumber: anyOf: - type: string - type: 'null' title: Titlenumber description: USC/CFR/state title number (e.g. '26', '13A'). titleName: anyOf: - type: string - type: 'null' title: Titlename description: Title name (e.g., 'The Public Health and Welfare'). chapter: anyOf: - type: string - type: 'null' title: Chapter description: Chapter number or identifier. chapterName: anyOf: - type: string - type: 'null' title: Chaptername description: Chapter name. sectionNumber: anyOf: - type: string - type: 'null' title: Sectionnumber description: Section number (e.g., '1983', '240.10b5-1'). sectionTitle: anyOf: - type: string - type: 'null' title: Sectiontitle description: >- The section's own heading (e.g., 'Rule G. Forfeiture Actions In Rem'). Distinct from `title`, which is the hierarchical display path. displayPath: anyOf: - type: string - type: 'null' title: Displaypath description: Full hierarchical path (Title > Chapter > Section). breadcrumb: anyOf: - items: additionalProperties: type: string type: object type: array - type: 'null' title: Breadcrumb description: Structured breadcrumb trail for navigation. parent: anyOf: - additionalProperties: true type: object - type: 'null' title: Parent description: >- Query for `GET /us/statutes/divisions` that lists this section's siblings (its containing chapter, part, or code). Pass it straight back to walk up the hierarchy. Null when the container cannot be determined. subchapter: anyOf: - type: string - type: 'null' title: Subchapter description: Subchapter number or identifier. subchapterName: anyOf: - type: string - type: 'null' title: Subchaptername description: Subchapter name. part: anyOf: - type: string - type: 'null' title: Part description: Part number or identifier (CFR/state). partName: anyOf: - type: string - type: 'null' title: Partname description: Part name. subpart: anyOf: - type: string - type: 'null' title: Subpart description: Subpart number or identifier (CFR). subpartName: anyOf: - type: string - type: 'null' title: Subpartname description: Subpart name. popularName: anyOf: - type: string - type: 'null' title: Popularname description: >- Popular/common name of the act (e.g. 'Truth in Lending Act'), when known. actStatus: anyOf: - type: string - type: 'null' title: Actstatus description: >- Raw section status: `in_force`, `repealed`, `renumbered`, `transferred`, `omitted`, `reserved`, `vacant`, or `unconstitutional`. goodLawStatus: anyOf: - type: string - type: 'null' title: Goodlawstatus description: >- Derived currency verdict: `good_law`, `not_good_law`, `not_operative`, or `unknown`. Conservative: states without a reliable repeal signal report `unknown` rather than over-claiming. `null` when currency checking is disabled. currencyNote: anyOf: - type: string - type: 'null' title: Currencynote description: Source's 'current through ...' note, when published. renumberedTo: anyOf: - type: string - type: 'null' title: Renumberedto description: Pointer to the new location when `actStatus` is `renumbered`. transferredTo: anyOf: - type: string - type: 'null' title: Transferredto description: Pointer to the new location when `actStatus` is `transferred`. issueDate: anyOf: - type: string - type: 'null' title: Issuedate description: Issue/publication date of this version (ISO 8601), when known. crossReferencesCfr: anyOf: - items: type: string type: array - type: 'null' title: Crossreferencescfr description: CFR cross-references parsed from the text, e.g. `['1.6011-4']`. crossReferencesUsc: anyOf: - items: type: string type: array - type: 'null' title: Crossreferencesusc description: >- USC cross-references parsed from the text, e.g. `['42:1983']`. `'self:
'` denotes a reference to another section of the same title. statutoryAuthority: anyOf: - items: additionalProperties: true type: object type: array - type: 'null' title: Statutoryauthority description: >- For a CFR/eCFR section: the USC (or other) citations in its 'Authority' note that authorize the rule, e.g. `[{'type': 'usc', 'title': 15, 'section': '78o', 'display': '15 U.S.C. 78o'}]`. Null for non-regulation corpora. implementingRegulations: anyOf: - items: additionalProperties: true type: object type: array - type: 'null' title: Implementingregulations description: >- For a USC section: the CFR parts that implement it, derived from the reverse of every CFR section's own `statutoryAuthority`, e.g. `[{'cfrTitle': 17, 'part': '240', 'partName': '...', 'display': '17 CFR Part 240'}]`. Null for non-USC corpora. frRegulationIdNumbers: anyOf: - items: type: string type: array - type: 'null' title: Frregulationidnumbers description: Regulation Identifier Number(s) (RIN) assigned to this rule. frDocketIds: anyOf: - items: type: string type: array - type: 'null' title: Frdocketids description: Rulemaking docket ID(s) this document was filed under. frEffectiveOn: anyOf: - type: string - type: 'null' title: Freffectiveon description: The rule's effective date (ISO 8601 date), when set. frCommentsCloseOn: anyOf: - type: string - type: 'null' title: Frcommentscloseon description: Public-comment deadline (ISO 8601 date). Proposed rules only. frSignificant: anyOf: - type: boolean - type: 'null' title: Frsignificant description: >- Whether the Federal Register marked this rule 'economically significant' (EO 12866). frCorrectionOf: anyOf: - type: string - type: 'null' title: Frcorrectionof description: >- Federal Register document number this document corrects, when this is a correction. frCorrections: anyOf: - items: type: string type: array - type: 'null' title: Frcorrections description: >- Federal Register document number(s) that later corrected this document. frRegulationsDotGovUrl: anyOf: - type: string - type: 'null' title: Frregulationsdotgovurl description: Link to this document's public comment docket on regulations.gov. frRelatedDocuments: anyOf: - items: $ref: '#/components/schemas/FrRelatedDocument' type: array - type: 'null' title: Frrelateddocuments description: >- Other Federal Register documents sharing this document's RIN(s) (its proposed rule, its final rule, and any corrections), most recent first. Only populated on `GET /us/statutes/section/{actId}` for a row that carries `frRegulationIdNumbers`; always null on `/us/statutes/search` results, since computing it needs a follow-up lookup that is too expensive to run per search result. subject: anyOf: - type: string - type: 'null' title: Subject description: >- The publisher's own subject or document-type label, where it prints one (for example a state insurance bulletin's `RE:` line, or its listing category such as `Rescission`). rescindedOn: anyOf: - type: string - type: 'null' title: Rescindedon description: >- ISO date the document was rescinded or withdrawn, when the source states one. sourceCredit: anyOf: - type: string - type: 'null' title: Sourcecredit description: >- The Office of the Law Revision Counsel's credit line for a **USC** section: the acts that enacted and amended it, in order, e.g. `June 25, 1948, ch. 646, 62 Stat. 869; Pub. L. 85-508, Sec. 12, July 7, 1958, 72 Stat. 348`. Parentheses stripped, whitespace normalized. USC only, and null on a USC section that prints no credit (a transferred, repealed or reclassified stub). CFR sections carry the same fact as a list in `federalRegisterCitations` instead, which is why the shape differs; no other corpus publishes one. amendmentYears: anyOf: - items: type: integer type: array - type: 'null' title: Amendmentyears description: >- Distinct years the section was amended, parsed from the publisher's history note. **Always newest first, and de-duplicated.** Ingesters store the array in both orders (eCFR writes newest first, state regulations and state statutes write oldest first), so the order is imposed at serve time and the served order is the only one to rely on. Years outside 1789..(current year) are dropped rather than served: amendment dates are parsed out of prose and a note can yield a sunset or substitution date that is not an amendment at all. lastAmendedYear: anyOf: - type: integer - type: 'null' title: Lastamendedyear description: >- Most recent amendment year, when known. Re-derived at serve time as `max(amendmentYears)`, so it never exceeds the list served beside it. Falls back to the publisher's own scalar only when `amendmentYears` is empty, and only when that scalar is itself within 1789..(current year). amendmentsCount: anyOf: - type: integer - type: 'null' title: Amendmentscount description: >- How many amendments the publisher recorded for this section. **Not the length of `amendmentYears`, and it is not safe to derive one from the other.** For regulations and court rules this counts amending EVENTS: one per register citation, filing or history entry, so a section amended twice in the same year counts 2 against a single entry in `amendmentYears`. Measured 2026-08-30, the two numbers differ on 181,757 regulation sections and 15,648 court-rule sections. For the other corpora, and for any source that publishes no per-event record, it falls back to the number of distinct years, which understates a section amended twice in one year. currentThrough: anyOf: - type: string - type: 'null' title: Currentthrough description: >- The date the publisher states this text is current through, e.g. `2025-01-06`. Set on every USC section. `currencyNote` carries the same fact as prose where a publisher writes it that way. amendmentHistory: anyOf: - items: type: string type: array - type: 'null' title: Amendmenthistory description: >- Structured amendment entries where the publisher records them separately from the credit line in `history`. sourceNote: anyOf: - type: string - type: 'null' title: Sourcenote description: The publisher's source note for the section, verbatim. effectiveDate: anyOf: - type: string - type: 'null' title: Effectivedate description: >- When THIS version took effect, as the publisher prints it. On a section with `actStatus=superseded` this is the start of that version's window. priorEffectiveDates: anyOf: - items: type: string type: array - type: 'null' title: Prioreffectivedates description: Earlier effective dates recorded for the section. history: anyOf: - type: string - type: 'null' title: History description: >- The publisher's own amendment/history credit line, verbatim, e.g. `Effective 5/4/2005; Superseded 8/1/2016`. `amendmentYears` is parsed from this; keep both when you need the exact wording. supersededBy: anyOf: - type: string - type: 'null' title: Supersededby description: >- `actId` of the section that replaced this one. Present on a superseded version so you can fetch the current text in one hop via `GET /statutes/section/{actId}`. supersedes: anyOf: - type: string - type: 'null' title: Supersedes description: '`actId` of the earlier version this section replaced, when known.' ruleSet: anyOf: - type: string - type: 'null' title: Ruleset description: >- For court rules, the rule family this belongs to, e.g. `North Dakota Rules of Civil Procedure`. Rule numbers repeat across families (a Civil Rule 12 and a Criminal Rule 12 both exist), so this is what disambiguates them. publicLaws: anyOf: - items: type: string type: array - type: 'null' title: Publiclaws description: Public Laws referenced by the section, e.g. `['Pub. L. 96-170']`. federalRegisterCitations: anyOf: - items: type: string type: array - type: 'null' title: Federalregistercitations description: >- Federal Register citations associated with the section, e.g. `['48 FR 3956', '49 FR 15073']`. This is the CFR's form of the credit line `sourceCredit` carries for the USC: the rulemakings that established and amended the section. Populated on 37.4% of CFR sections, empty where eCFR prints no source note. granuleId: anyOf: - type: string - type: 'null' title: Granuleid description: govinfo granule identifier (USC/CFR provenance). packageId: anyOf: - type: string - type: 'null' title: Packageid description: govinfo package identifier (USC/CFR provenance). htmlUrl: anyOf: - type: string - type: 'null' title: Htmlurl description: HTML version of the statute section. pdfUrl: anyOf: - type: string - type: 'null' title: Pdfurl description: PDF version of the statute section. xmlUrl: anyOf: - type: string - type: 'null' title: Xmlurl description: XML version of the statute section. textUrl: anyOf: - type: string - type: 'null' title: Texturl description: >- Plain-text version. Populated for state corpora (MS, NJ, NY, NV, etc.). docxUrl: anyOf: - type: string - type: 'null' title: Docxurl description: Microsoft Word (DOCX) version, when available. stateHtmlUrl: anyOf: - type: string - type: 'null' title: Statehtmlurl description: >- HTML rendering of the document. For most state corpora this is the publisher's own page; for corpora we mirror (state agency guidance, regulations, court rules) it is our archived copy of the artifact the publisher served, on statutes-us.vaquill.ai. Use `externalUrl` for the publisher's canonical address. Never a PDF: a mirrored PDF is served as `pdfUrl` instead. Populated for state corpora only. govInfoHtmlUrl: anyOf: - type: string - type: 'null' title: Govinfohtmlurl description: Official govinfo.gov HTML version. govInfoPdfUrl: anyOf: - type: string - type: 'null' title: Govinfopdfurl description: Official govinfo.gov PDF version. abstract: anyOf: - type: string - type: 'null' title: Abstract description: >- The issuing agency's own summary of the document, as published in the Federal Register. Populated on 99.9% of rules and proposed rules, which makes 5.49M documents triageable without fetching the full text. examples: - This regulation extends time-limited tolerances for pesticides. agencies: anyOf: - items: type: string type: array - type: 'null' title: Agencies description: >- Issuing agencies, by name. Populated on 99.9% of Federal Register documents. Pair with `agencySlugs` when you need the token the `agency` search filter takes. examples: - - Environmental Protection Agency agencySlugs: anyOf: - items: type: string type: array - type: 'null' title: Agencyslugs description: >- The issuing agencies as slugs. These are exactly the values the `agency` filter on `/us/statutes/search` accepts, so an agency facet can be round-tripped straight back into a query. examples: - - environmental-protection-agency topics: anyOf: - items: type: string type: array - type: 'null' title: Topics description: >- The Federal Register's own CFR-index subject terms. Populated on ~71% of rules and ~68% of proposed rules, with one hard boundary: documents published before 2000 carry none, because the Federal Register did not index them this way. examples: - - Environmental protection - Pesticides and pests documentTypeLabel: anyOf: - type: string - type: 'null' title: Documenttypelabel description: >- The instrument type as the publisher names it: `Rule`, `Proposed Rule`, `Presidential Document`, `Declaratory Ruling`, `Resolution Agreement`. Deliberately NOT `corpusType`, which says which body of law a document belongs to: two documents in one corpus can be very different instruments. examples: - Rule documentSubtype: anyOf: - type: string - type: 'null' title: Documentsubtype description: >- Finer instrument class where the publisher gives one. On presidential documents this separates an executive order from a proclamation, a memorandum or a notice (~90% populated there). examples: - Proclamation action: anyOf: - type: string - type: 'null' title: Action description: >- The Federal Register's own ACTION line, ~100% populated. Carries distinctions no other field makes: interim final rule, direct final rule, withdrawal, reopening of the comment period. examples: - Final rule. president: anyOf: - type: string - type: 'null' title: President description: >- The president in office for this document, on Federal Register and presidential-document corpora spanning 1994 to present. examples: - George W. Bush signingDate: anyOf: - type: string - type: 'null' title: Signingdate description: >- When a presidential document was signed, which is routinely earlier than `publicationDate` and is the legally operative date. examples: - '2026-04-02' datesText: anyOf: - type: string - type: 'null' title: Datestext description: >- The verbatim DATES block from the Federal Register, ~98% populated. Worth reading alongside `frEffectiveOn`: a rule with staged or conditional effective dates has them here, and the single date flattens that away. examples: - This regulation is effective December 14, 2001. frVolume: anyOf: - type: integer - type: 'null' title: Frvolume description: Federal Register volume, the `66` in `66 FR 64768`. examples: - 66 frStartPage: anyOf: - type: integer - type: 'null' title: Frstartpage description: First Federal Register page, the `64768` in `66 FR 64768`. examples: - 64768 frEndPage: anyOf: - type: integer - type: 'null' title: Frendpage description: >- Last Federal Register page. With `frStartPage` this gives the page RANGE, which `citation` cannot express because it carries only the first page. examples: - 64775 wordCount: anyOf: - type: integer - type: 'null' title: Wordcount description: >- Words in the full document, so a caller can size a fetch before paying for the body. examples: - 6271 issuingAgency: anyOf: - type: string - type: 'null' title: Issuingagency description: >- The body that promulgated or issued this document: the state agency behind a regulation, the division behind an agency letter. Populated at 83.6-100% across the state-regulation corpora that carry it, and previously unreachable under any name, so 'which agency made this rule' had no answer. examples: - Pollution Control Board adoptingCitations: anyOf: - items: type: string type: array - type: 'null' title: Adoptingcitations description: >- Citations to the instrument that ADOPTED this rule: the state register notice, the Washington filing number, the adopting order. The rulemaking audit trail. Unified across four different payload spellings, so this is comparable across states in a way the underlying data is not. examples: - - 37 Ill. Reg. 16539 lawImplemented: anyOf: - type: string - type: 'null' title: Lawimplemented description: >- The statute this rule IMPLEMENTS, as distinct from `statutoryAuthority`, which is the statute granting the rulemaking power. Florida populates both and they differ. examples: - Section 4656.1, Public Resources Code lastAmendedDate: anyOf: - type: string - type: 'null' title: Lastamendeddate description: >- Full date of the most recent amendment, where the publisher gives one. Illinois and Colorado regulations carry their amendment provenance only here and in `amendmentNote`: neither state has a `history`, and Colorado has no `effectiveDate` either, so for Colorado this is the only date that exists. examples: - October 4, 2013 amendmentNote: anyOf: - type: string - type: 'null' title: Amendmentnote description: >- The publisher's amendment credit line where it is stored separately from `history`. Illinois and Colorado regulations, ~72% populated. examples: - Amended at 37 Ill. Reg. 16539, effective October 4, 2013 currencyYear: anyOf: - type: integer - type: 'null' title: Currencyyear description: >- Machine-readable counterpart to `currencyNote`, which is prose. 100% populated on the nine state-regulation corpora that carry a currency statement. examples: - 2025 reviewDate: anyOf: - type: string - type: 'null' title: Reviewdate description: >- The date a rule must be re-adopted or it expires, where the state runs a sunset review. Ohio regulations, ~80% populated. Not an amendment date: it is in the future. examples: - 11/1/2028 originalEnactmentDate: anyOf: - type: string - type: 'null' title: Originalenactmentdate description: >- When the section was FIRST enacted, ~72% populated on the US Code. Deliberately separate from `effectiveDate`: merging them would report an amended section as effective from its original year. On 35.7% of US Code points this is the only enactment date we hold. examples: - June 27, 1934 releaseDate: anyOf: - type: string - type: 'null' title: Releasedate description: >- When the document was released publicly, where that differs from when it was issued. NLRB advice memoranda are written years before release; measured, the two dates are never equal. examples: - '2018-06-14' documentNumber: anyOf: - type: string - type: 'null' title: Documentnumber description: >- The issuer's own document or case number, for exact lookup: an FCC DA number, an NLRB case-handling docket, a ruling number. On NLRB advice memoranda and FCC/HHS OCR documents this is NOT recoverable from `sectionNumber`. examples: - 21-CA-211066 caseName: anyOf: - type: string - type: 'null' title: Casename description: >- The charged party or covered entity a document concerns. Only 27% equal to `sectionTitle` on HHS OCR, so it is not recoverable from the served text. examples: - Dunn-Edwards Corp. forum: anyOf: - type: string - type: 'null' title: Forum description: >- For `corpusType=AGENCY_ADJUDICATION`, the KIND of proceeding that produced the document, in the publisher's own words. On CFPB enforcement actions this is `Administrative Proceeding` (the Bureau's own Office of Administrative Adjudication, under 12 C.F.R. Part 1081) or `Civil Action` (a suit the Bureau filed in a federal district court). One action can carry both, in which case they are joined with `; `. Null on every other corpus. examples: - Administrative Proceeding court: anyOf: - type: string - type: 'null' title: Court description: >- The body that heard the matter, where the publisher names one. Distinct from `forum`, which is the KIND of proceeding: `forum` has two values and is what you filter on, `court` has as many values as there are districts and is for display. Populated on every CFPB civil action and on the administrative proceedings the Bureau labels with its own adjudication office. examples: - U.S. District Court for the District of Massachusetts relatedDocuments: anyOf: - items: type: string type: array - type: 'null' title: Relateddocuments description: >- The publisher's own labels for the filings whose text this record carries, in the order the publisher lists them. A CFPB enforcement action is ONE legal event published as two to seventeen PDFs and the unit we serve is the ACTION, not the filing: a consent order and the stipulation consenting to it are one record, because splitting them makes every search return two half-answers. This is what tells you which filings are inside the record you are holding. Only the operative instrument is mirrored under `pdfUrl`. examples: - - Consent Order - Stipulation settlementAmount: anyOf: - type: string - type: 'null' title: Settlementamount description: >- The monetary penalty or settlement, as the agency prints it. 95.2% populated on HHS OCR resolution agreements, where it is the single most-asked fact of the corpus. examples: - $16,500 requesters: anyOf: - items: type: string type: array - type: 'null' title: Requesters description: >- Who asked for the determination or relief. On export-control commodity-jurisdiction determinations this is the applicant (100% populated); on no-action letters it determines who may rely on the relief. examples: - - Preece, Inc. program: anyOf: - type: string - type: 'null' title: Program description: >- The benefit or regulatory program a document governs, e.g. Old-Age and Survivors Insurance. 100% populated on Social Security rulings, where it is the primary axis a practitioner filters on. examples: - Old-Age and Survivors Insurance languageCode: anyOf: - type: string - type: 'null' title: Languagecode description: >- ISO code of the language the document is written in, present where a corpus is not wholly English. 86% of Puerto Rico insurance bulletins are Spanish (`es`) and nothing previously said so. examples: - es volume: anyOf: - type: integer - type: 'null' title: Volume description: >- Volume number for corpora organised in volumes, e.g. the USCIS Policy Manual, whose Volume is the top hierarchy level and had no served representation at all. examples: - 1 articleNumber: anyOf: - type: string - type: 'null' title: Articlenumber description: >- Article number. Article is the PRIMARY hierarchy level in state constitutions, where `chapter` and `part` are 0-6% populated, so without this those corpora served almost no structure. examples: - '1' articleName: anyOf: - type: string - type: 'null' title: Articlename description: Article title, the companion to `articleNumber`. examples: - Declaration of Rights ruleSetCode: anyOf: - type: string - type: 'null' title: Rulesetcode description: >- Stable machine key for the rule family, where `ruleSet` gives only the prose name. 100% populated on the court-rules states that have a rule set. examples: - NDSUPCTADMINR edition: anyOf: - type: string - type: 'null' title: Edition description: The publisher's edition or year for this text. examples: - '2025' relatedCitations: anyOf: - items: type: string type: array - type: 'null' title: Relatedcitations description: >- Citations OUT of this document that are neither USC nor CFR: the state statutes a regulation implements, the Internal Revenue Code sections a ruling construes, other guidance it points at. `crossReferencesUsc` and `crossReferencesCfr` are 0% on several of these corpora, so this is the only outbound citation set they have. examples: - - RCW 28A.150.290 supersessionActions: anyOf: - additionalProperties: true type: object - type: 'null' title: Supersessionactions description: >- What this document does to EARLIER documents, keyed by the issuer's own verb: `modifies`, `obsoletes`, `amplifies`, `clarifies`, `rescinds`, each mapping to the documents affected. `supersedes` and `supersededBy` cover only the strongest verb. Without these a caller cannot tell a modified revenue procedure from an untouched one, nor see which memorandum rescinded which. examples: - modifies: - Rev. Proc. 2011-47 licenseNote: anyOf: - type: string - type: 'null' title: Licensenote description: >- Licence and upstream dataset for text derived from a third-party snapshot rather than fetched from the publisher. Present on the state-regulation corpora built from an external dataset; absent means we hold the text under no third-party licence. examples: - MIT (reglab/statecodes) subtitle: anyOf: - type: string - type: 'null' title: Subtitle description: >- Subtitle, where a jurisdiction puts a level between title and chapter. Maryland's regulations are organised Title > Subtitle > Chapter and are 100% populated; no other served field expressed that level. Deliberately NOT the same as `subchapter`, which sits BELOW chapter. examples: - '11' subtitleName: anyOf: - type: string - type: 'null' title: Subtitlename description: Subtitle title, the companion to `subtitle`. examples: - AIR QUALITY publisherKey: anyOf: - type: string - type: 'null' title: Publisherkey description: >- The publisher's own stable identifier for this document, where it issues one. On the US Code this is the OLRC's `usckey` (100% populated), which joins directly to the uscode.house.gov bulk XML; on Colorado regulations it is the state's rule id. Use it to reconcile our records against the publisher's without matching on citation strings. examples: - '430000000310400000000000000000000' versionId: anyOf: - type: string - type: 'null' title: Versionid description: >- The publisher's identifier for THIS VERSION of the document, where it versions them separately from the document itself. 100% populated on Colorado regulations, where it is the only version pointer that exists. examples: - '11948' referencedShortTitles: anyOf: - items: type: string type: array - type: 'null' title: Referencedshorttitles description: >- Popular names of acts this section REFERENCES, ~10% of the US Code. Distinct from `popularName`, which is the section's own. examples: - - Driftnet Modernization and Bycatch Reduction Act subjectNumber: anyOf: - type: string - type: 'null' title: Subjectnumber description: >- The publisher's numbered subject index entry, the companion to the term in `topics`. 100% populated on Social Security rulings. examples: - '47' audience: anyOf: - type: string - type: 'null' title: Audience description: >- Who the document is addressed to or binds, where the issuer states it. 100% populated on the Montana insurance bulletins. examples: - All Persons Engaged in Marketing sourceCharStart: anyOf: - type: integer - type: 'null' title: Sourcecharstart description: >- Character offset where this text begins in the source document, for callers reconciling our extraction against the original PDF. Pairs with `sourcePageStart`. examples: - 263194 sourceCharEnd: anyOf: - type: integer - type: 'null' title: Sourcecharend description: Character offset where this text ends in the source document. examples: - 264198 alternateCitations: anyOf: - items: type: string type: array - type: 'null' title: Alternatecitations description: >- Other official citation forms for THIS document, where a publisher prints more than one. Puerto Rico gives an L.P.R.A. cite, Arizona a long form, the IRS an Internal Revenue Bulletin cite, the Federal Reserve a paired Consumer Affairs number. Distinct from `relatedCitations`, which is what this document points AT. Use these when you need to match a citation a user typed in the form their jurisdiction actually publishes. examples: - - 4 L.P.R.A. § 2077 expirationDate: anyOf: - type: string - type: 'null' title: Expirationdate description: >- When this rule lapses unless re-adopted. Distinct from `reviewDate` (the review deadline) and from any amendment date: it is in the future and it ENDS the rule. examples: - 03-01-2029 committeeNote: anyOf: - type: string - type: 'null' title: Committeenote description: >- Advisory-committee note on a procedural rule: the standard interpretive gloss courts read alongside the rule text. Deliberately separate from `amendmentNote`, which records when the rule changed rather than what it means. sourcePageStart: anyOf: - type: integer - type: 'null' title: Sourcepagestart description: >- First page in the official PDF this text was extracted from, for a pinpoint print citation. 100% populated on the Federal Rules. examples: - 114 sourcePageEnd: anyOf: - type: integer - type: 'null' title: Sourcepageend description: Last page in the official PDF; companion to `sourcePageStart`. examples: - 114 displayLabel: anyOf: - type: string - type: 'null' title: Displaylabel description: >- The publisher's own short label for this section, e.g. `Cal. BPC § 655.2` or `MPEP § 2165.03`. Populated on essentially every document we hold. Usually equal to `citationShort`, but NOT always: on the Federal Communications Commission, NLRB, HHS OCR and BIS corpora the two differ on every document, and there `displayLabel` is the form the publisher itself prints. examples: - MPEP § 2165.03 publicationDate: anyOf: - type: string - type: 'null' title: Publicationdate description: >- The date this document was published by its source. For Federal Register documents this is the FR publication date, the primary citation and sort key, populated on 100% of the 5.49M rules and proposed rules. Distinct from `effectiveDate` (when it takes legal effect) and from `issueDate` (when the issuing body dated it). A rule is routinely published before it is effective. examples: - '2001-12-14' publicLawCites: anyOf: - items: additionalProperties: true type: object type: array - type: 'null' title: Publiclawcites description: >- Structured Statutes at Large citations parsed out of the source credit, populated on ~72% of the US Code. Each entry carries `statVolume`, `statPage`, `type` and a `display` string. `publicLaws` gives the bare `Pub. L.` list and `sourceCredit` the raw prose; this is the same information already parsed, so a caller can link to the Statutes at Large without re-parsing the credit line. topLevelTitle: anyOf: - type: string - type: 'null' title: Topleveltitle description: >- The outermost division this document sits under, where the corpus has one that `titleNumber`/`chapter`/`part` do not already express. Examples: `Title 9: Criminal` for the DOJ Justice Manual, `Volume 1 - General Policies and Procedures` for the USCIS Policy Manual. Null for flat corpora, where one document is the whole unit. examples: - 'Title 9: Criminal' externalUrl: anyOf: - type: string - type: 'null' title: Externalurl description: URL on the official source website (eCFR or uscode.house.gov). type: object required: - actId title: StatuteResult description: A single statute section from search results. FrRelatedDocument: properties: actId: type: string title: Actid citation: anyOf: - type: string - type: 'null' title: Citation title: anyOf: - type: string - type: 'null' title: Title description: The related document's own title/heading, when known. documentType: anyOf: - type: string - type: 'null' title: Documenttype description: >- `proposed_rule`, `final_rule`, or the raw Federal Register category otherwise. publicationDate: anyOf: - type: string - type: 'null' title: Publicationdate description: Federal Register publication date (ISO 8601 date), when known. type: object required: - actId title: FrRelatedDocument description: >- One other Federal Register document sharing a RIN with this one. A Regulation Identifier Number (RIN) tracks one regulatory action through its lifecycle -- a proposed rule, its final rule, and any later corrections all carry the same RIN. This is what answers "what happened to this proposed rule": look up its RIN's other documents. securitySchemes: ApiKeyAuth: type: http scheme: bearer bearerFormat: vq_key_* description: >- API key issued from the developer dashboard. Pass as `Authorization: Bearer vq_key_...` ````