eCFR
The Electronic Code of Federal Regulations - the current, consolidated text of federal regulations in force. The authoritative, up-to-date regulatory text.
What's indexed
Regulatory text
Full text of regulations with structural hierarchy
Title/part/section structure
Navigable CFR structure for precise retrieval
Amendment history
Track when sections were last amended
Cross-references
Links between related CFR sections
Authority citations
Statutory authority for each regulation
Source notes
Federal Register citations for each provision
Why it matters
While the Federal Register publishes changes as they happen, the eCFR is the consolidated, current state of all federal regulations. For compliance teams, this is the definitive text of the rules in force right now. Monitoring eCFR changes tells you when the actual regulatory text has been updated - not just when a rule was proposed or finalized, but when the codified text changed.
Filters and metadata
Example queries
Search regulation text
search "capital adequacy" filter: title=12, part=3Track changes to a specific section
changes filter: title=17, part=240, since=2024-01-01As-of retrieval for point-in-time analysis
search "broker-dealer" filter: title=17, as_of=2024-06-15Freshness
The eCFR is updated as final rules take effect and the consolidated text changes. The corpus is recrawled to detect amendments. Change events are emitted when sections are added, modified, or removed, with diff-based change detection.