Tier 1 official source
eCFR.gov
The electronic Code of Federal Regulations, updated continuously as a working regulatory reference.
Source metadata
- Domain
- ecfr.gov
- Owner
- National Archives and Records Administration
- Level
- federal
- Category
- Regulation and rulemaking
- Last checked
- 2026-07-23
What you can do there
Read current federal regulations
Search sections and parts
Trace regulatory authority
Find definitions and applicability language
Related questions
What is eCFR.gov?
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What regulation controls this process?