Every document published in the Federal Register from January 2020 onward — Rules, Proposed Rules, Notices, and Presidential Documents (including every Executive Order). Target ~360k records across 6 years. Per document: document number (e.g. '2024-12345'), type + subtype, title, abstract, publication date, effective date, signing date (for EOs), executive order number, agencies involved (JSON array of slugs), citation (e.g. '91 FR 12345'), volume + page range, PDF/HTML/JSON URLs, topics. The Federal Register is the definitive record of US federal rulemaking — this lets you ask 'what rules has EPA proposed in the last 30 days?' or 'every executive order on critical minerals' in one query.
The listed URL identifies a referenced source; it does not by itself document the ingestion endpoint. Referenced source URL: https://www.federalregister.gov/api/v1/documents.json. Source-specific terms apply. US federal employee-authored works are generally public domain under 17 USC 105; non-federal and third-party material retains source terms. Free or keyless access does not alter source terms. Metadata and normalization authored by MORVS (AI Analytics LLC) are CC0 only where expressly stated.