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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.
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.

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What’s in the corpus

State statutes

52 jurisdictions (all 50 states + DC + Puerto Rico), 1.95M+ sections. Queryable via the statutes API.

Federal law

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.

State constitutions

51 jurisdictions (50 states + Puerto Rico), ~7.7K sections, with article/section structure and clickable citations. Queryable via the API (corpusType=STATE_CONSTITUTION).

Court rules

7 states, ~8K rules (civil, criminal, appellate, and local), refreshed weekly. Queryable via the API (corpusType=STATE_RULES).

State regulations

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).

Case law

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.
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.

Open source: 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.

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Federal

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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.
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.

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How to query a jurisdiction

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.

API Reference

Every endpoint with parameters and examples.

Open source pipeline

The scrapers and bulk-source parsers behind this corpus, on GitHub.