Open US Law
A free, machine-readable snapshot of United States primary law, from statutes and regulations to court rules and agency decisions, normalized into one schema. 5,081,709 sections.
Total sections
Statute sections, state, territorial and federal
Regulation sections in force, state and federal
State attorney general opinions
What is in the dataset
Each record carries a stable act_id, a Bluebook-style citation, its full hierarchy (title, chapter, section), an act_status field (in_force, repealed, reserved, and related states), a source_url where one exists, and cross-references into the United States Code and the Code of Federal Regulations. The schema has 27 columns in total.
This is snapshot v2026.09.1, dated September 30, 2026, 308 files in all. It carries regulations for 40 jurisdictions alongside the current Code of Federal Regulations, 104,540 state attorney general opinions, past editions of the Code of Federal Regulations, proposed federal rules, Federal Register notices, federal session laws, and decisions from the NLRB, FTC, SEC, MSPB, the Board of Immigration Appeals and the Office of Legal Counsel. Every section appears exactly once. New snapshots ship quarterly, so you can pin an exact version.
A note on provenance
Every record carries the source_url it was published from: a government publisher, or a body the government designates to publish that law. Sections whose source could not be shown are left out rather than published without one.
Access the data
- Hugging Face datasetCanonical copy, in Parquet.View on Hugging Face
- Scrapers on GitHubThe open-source code that builds the dataset. Apache-2.0.View on GitHub
- Combined Parquet tarballAll jurisdictions in one file, about 6.91 GB, from the Cloudflare R2 mirror.Download tarball
- Machine manifestA JSON index of every file with a SHA256 for verification.Open index.json
Licensing
Three layers, each licensed separately and precisely.
Statutory text: public domain
The text of statutes and constitutions is public domain under the government edicts doctrine (Georgia v. Public.Resource.Org, 2020). We assert no rights over it.
Compilation and structuring: CC BY-NC 4.0
The normalized schema, the citations, the hierarchy, and the assembly of the corpus are released under Creative Commons Attribution-NonCommercial 4.0: free for research, teaching, legal aid, journalism and other non-commercial use. Commercial use needs a licence from us, or use the hosted API. Snapshots before v2026.09 were released under CC BY 4.0.
Scrapers: Apache-2.0
The code that collects and structures the data is licensed under Apache-2.0.
If you use the compilation, attribute it as: Open US Law by Vaquill AI, CC BY-NC 4.0.