> ## 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.

# API Coverage

> Exactly which US jurisdictions and corpus types the Vaquill statutes API has ingested, with live section counts

This page lists the US legal data Vaquill has ingested, by corpus type and by
jurisdiction. Vaquill covers the full stack of US primary law, not just statutes:
federal law, state statutes, state constitutions, court rules, state regulations,
and case law. The **Developer API** (`/statutes/*`) serves statutes, regulations,
constitutions, court rules, and executive actions, scoped with the `corpusType`
filter; case law is available in the platform. Coverage is queryable live from
`GET /statutes/coverage` and `GET /statutes/states`; the per-corpus matrix below
is a snapshot. In total the ingested corpus holds **\~3.5M sections** across all of
these corpus types.

<Info>
  **Snapshot date: 2026-07-21.** Statute coverage is always live via
  `/statutes/states` and `/statutes/codes`. Constitutions, court rules and case
  law are an expanding set.

  **Regulations come in two tiers, and the difference matters.** 14 states are
  ingested from the state's own official publisher and refreshed on a monthly
  cycle. The remaining 31 come from a dated 2024 corpus with no live refresh
  path, because those states either publish no free official full text or have
  not been built yet. Every section from that tier carries `actStatus:
      "snapshot"` plus the source's own "current through" line, and resolves to
  `goodLawStatus: "unknown"` rather than being asserted as current law. The
  matrix below marks them.
</Info>

## What's in the corpus

<CardGroup cols={2}>
  <Card title="State statutes" icon="building-columns">
    **52 jurisdictions** (all 50 states + DC + Puerto Rico), **1.95M+ sections**. Queryable via the statutes API.
  </Card>

  <Card title="Federal law" icon="landmark">
    US Code (54,855), CFR (219,745), Federal Register rules (121,214), Executive Orders (3,593), agency guidance (2,509), Federal Rules of Procedure (526), US Constitution (74). Queryable via the statutes API.
  </Card>

  <Card title="State constitutions" icon="scroll">
    **51 jurisdictions** (50 states + Puerto Rico), \~7.7K sections, with article/section structure and clickable citations. Queryable via the API (`corpusType=STATE_CONSTITUTION`).
  </Card>

  <Card title="Court rules" icon="gavel">
    **7 states**, \~8K rules (civil, criminal, appellate, and local), refreshed weekly. Queryable via the API (`corpusType=STATE_RULES`).
  </Card>

  <Card title="State regulations" icon="clipboard-list">
    **45 states**, **1.1M+ rules**, with effective dates and statutory authority. 14 refreshed monthly from official publishers; 31 from a dated 2024 corpus, flagged `actStatus: "snapshot"`. Queryable via the API (`corpusType=REGULATION`).
  </Card>

  <Card title="Case law" icon="scale-balanced">
    Federal opinions from the Supreme Court through the District Courts (all 13 Circuits), plus state appellate and supreme court opinions across all 50 states, with inline citation resolution. Available in the platform.
  </Card>
</CardGroup>

Every section is indexed for hybrid semantic + keyword search and mirrored in
multiple formats (HTML, PDF, XML, plain text, DOCX) where the source provides
them.

<Card title="Open source: Vaquill-AI/open-us-law" icon="github" href="https://github.com/Vaquill-AI/open-us-law">
  The ingestion pipeline behind this corpus - the bulk-source parsers, scrapers,
  and the JSONL schema for US statutes, regulations, court rules, and federal law -
  is open source under a permissive license. Build your own copy of the corpus, or
  contribute a source.
</Card>

## Federal

| Corpus                                                      | Sections | Refresh |
| ----------------------------------------------------------- | -------- | ------- |
| United States Code (USC)                                    | 54,855   | Weekly  |
| Code of Federal Regulations (CFR)                           | 219,745  | Weekly  |
| Federal Register agency rules (final + proposed)            | 121,214  | Weekly  |
| Executive Orders (Federal Register Presidential Documents)  | 3,593    | Weekly  |
| Agency guidance (SSA rulings, IRS, administrative guidance) | 2,509    | Weekly  |
| Federal Rules of Procedure (FRCP, FRCrP, FRE, FRAP, FRBP)   | 526      | Weekly  |
| US Constitution                                             | 74       | Weekly  |

## State and territory matrix

Counts are ingested sections. A dash means that corpus type is not yet ingested
for that jurisdiction. Sorted by statute volume.

An asterisk (\*) on a regulation count marks the **2024 snapshot tier**: those
sections carry `actStatus: "snapshot"`, resolve to `goodLawStatus: "unknown"`,
and are not refreshed. Unmarked regulation counts are ingested from the state's
own official publisher and refreshed monthly.

| Jurisdiction                     | Statutes | Regulations | Constitution | Court Rules |
| -------------------------------- | -------- | ----------- | ------------ | ----------- |
| California                       | 161,226  | 75,872\*    | 295          | 640         |
| Mississippi                      | 158,688  | 35,546\*    | 304          | -           |
| Texas                            | 122,535  | 44,247      | 402          | -           |
| Indiana                          | 83,148   | 37,749\*    | 52           | -           |
| Illinois                         | 72,163   | -           | 168          | 422         |
| New Jersey                       | 55,910   | 52,061\*    | 11           | -           |
| Washington                       | 51,488   | 51,142      | 159          | -           |
| Nevada                           | 48,190   | 34,245\*    | 1            | 1,349       |
| Alabama                          | 45,984   | 18,282\*    | 233          | -           |
| Louisiana                        | 43,550   | 29,127\*    | 56           | -           |
| Michigan                         | 40,646   | 22,961\*    | 307          | -           |
| New York                         | 40,102   | 50,570\*    | 21           | -           |
| Maryland                         | 39,552   | 12,871      | 24           | 1,220       |
| South Dakota                     | 39,541   | 25,884\*    | 29           | -           |
| Arkansas                         | 36,936   | 5,555\*     | 236          | -           |
| Oregon                           | 36,202   | 48,578\*    | 1            | -           |
| Oklahoma                         | 35,329   | 56,910\*    | 330          | -           |
| Colorado                         | 34,231   | 610         | 396          | -           |
| Virginia                         | 33,856   | 22,399      | 123          | -           |
| Ohio                             | 33,161   | 19,293      | 217          | -           |
| Tennessee                        | 32,685   | -           | 148          | -           |
| Montana                          | 30,514   | 32,208\*    | 193          | -           |
| South Carolina                   | 29,947   | 6,651       | 240          | -           |
| Missouri                         | 29,296   | 9,660\*     | 303          | -           |
| North Dakota                     | 29,042   | 17,144\*    | 185          | -           |
| Iowa                             | 28,223   | 26,237\*    | 54           | -           |
| Georgia                          | 28,154   | 19,580\*    | 79           | -           |
| Minnesota                        | 27,747   | 15,391      | 138          | 958         |
| North Carolina                   | 26,685   | 30,167\*    | 154          | -           |
| Nebraska                         | 25,997   | 14,127\*    | 244          | -           |
| Utah                             | 25,880   | -           | 220          | -           |
| West Virginia                    | 25,460   | 20,029\*    | 5            | -           |
| New Hampshire                    | 25,375   | -           | 2            | -           |
| Maine                            | 25,316   | 1,770       | 106          | -           |
| Florida                          | 24,866   | 32,765\*    | 188          | -           |
| Kansas                           | 24,361   | -           | 16           | -           |
| New Mexico                       | 24,035   | 13,274      | 59           | -           |
| District of Columbia (territory) | 23,694   | -           | -            | -           |
| Puerto Rico (territory)          | 23,649   | -           | 102          | -           |
| Vermont                          | 23,521   | 1,047\*     | 22           | -           |
| Massachusetts                    | 23,152   | 24,735\*    | 5            | -           |
| Idaho                            | 22,754   | 8,551       | 240          | -           |
| Arizona                          | 22,674   | 16,417\*    | 323          | 1,740       |
| Delaware                         | 21,649   | -           | 196          | -           |
| Rhode Island                     | 21,107   | 12,102\*    | 119          | -           |
| Kentucky                         | 20,894   | 4,894       | 274          | -           |
| Wisconsin                        | 18,158   | 17,830      | 14           | -           |
| Alaska                           | 17,935   | 24,765\*    | 44           | -           |
| Hawaii                           | 16,446   | 26,705\*    | 169          | -           |
| Connecticut                      | 16,082   | 17,468\*    | 34           | -           |
| Pennsylvania                     | 14,547   | 52,663\*    | 186          | 1,722       |
| Wyoming                          | 10,219   | 18,416\*    | 314          | -           |

<Note>
  All 50 states plus DC and Puerto Rico have statute coverage, and most are
  complete.
  Pennsylvania's Consolidated Statutes are complete; its older unconsolidated
  (Purdon's) statutes are a separate later addition and are prioritized for
  backfill.
  For the authoritative current
  count of any jurisdiction, call
  `/statutes/coverage` or `/statutes/states` (live).
  Regulations now cover 45 states. 14 are official-source and refreshed monthly
  (CO, ID, IL, KS, KY, MD, ME, MN, NM, OH, SC, VA, WA, WI); the rest are the
  2024 snapshot tier marked with an asterisk above, and California, New Jersey,
  New York and Vermont can only ever be served that way because their
  administrative codes are published exclusively under commercial licence with
  no free official full text. Constitutions and court rules roll out state by
  state.
</Note>

## How to query a jurisdiction

```bash theme={"theme":"github-dark"}
# Self-describing coverage matrix: every corpusType and its per-jurisdiction counts
curl https://api.vaquill.ai/api/v1/statutes/coverage \
  -H "Authorization: Bearer vq_key_..."

# Live coverage with current section counts
curl https://api.vaquill.ai/api/v1/statutes/states \
  -H "Authorization: Bearer vq_key_..."

# Statutory codes for one state (e.g. Mississippi)
curl "https://api.vaquill.ai/api/v1/statutes/codes?state=ms" \
  -H "Authorization: Bearer vq_key_..."

# Search within a state
curl -X POST https://api.vaquill.ai/api/v1/statutes/search \
  -H "Authorization: Bearer vq_key_..." \
  -H "Content-Type: application/json" \
  -d '{"query": "landlord retaliation", "corpusType": "STATE", "state": "ms"}'

# Search state regulations (corpusType REGULATION, paired with a state)
curl -X POST https://api.vaquill.ai/api/v1/statutes/search \
  -H "Authorization: Bearer vq_key_..." \
  -H "Content-Type: application/json" \
  -d '{"query": "stormwater discharge permit", "corpusType": "REGULATION", "state": "wa"}'
```

Each column in the matrix above maps to a `corpusType` filter on `/statutes/search`: statutes to `STATE`, regulations to `REGULATION`, constitutions to `STATE_CONSTITUTION`, and court rules to `STATE_RULES`. Federal Register agency rules use `FEDERAL_REGISTER` and agency guidance uses `AGENCY_GUIDANCE`.

<CardGroup cols={2}>
  <Card title="API Reference" icon="code" href="/docs/api-reference/statutes/search-us-statutes">
    Every endpoint with parameters and examples.
  </Card>

  <Card title="Open source pipeline" icon="github" href="https://github.com/Vaquill-AI/open-us-law">
    The scrapers and bulk-source parsers behind this corpus, on GitHub.
  </Card>
</CardGroup>
