U.S. Code of Federal Regulations
Regulations most recently checked for updates: May 21, 2025
Title 1 - General Provisions
(last rev. Jan 01, 1900)
Title 2 - Grants and Agreements
(last rev. Jan 21, 2025)
Title 3 - The President
(last rev. Mar 17, 2015)
Title 4 - Accounts
(last rev. Jul 18, 2024)
Title 5 - Administrative Personnel
(last rev. Apr 29, 2025)
Title 6 - Domestic Security
(last rev. Jan 21, 2014)
Title 7 - Agriculture
(last rev. May 13, 2025)
Title 8 - Aliens and Nationality
(last rev. May 18, 2025)
Title 9 - Animals and Animal Products
(last rev. Apr 21, 2025)
Title 10 - Energy
(last rev. May 16, 2025)
Title 11 - Federal Elections
(last rev. Feb 21, 2025)
Title 12 - Banks and Banking
(last rev. May 16, 2025)
Title 13 - Business Credit and Assistance
(last rev. Feb 18, 2025)
Title 14 - Aeronautics and Space
(last rev. May 07, 2025)
Title 15 - Commerce and Foreign Trade
(last rev. May 02, 2025)
Title 16 - Commercial Practices
(last rev. May 12, 2025)
Title 17 - Commodity and Securities Exchanges
(last rev. Apr 22, 2025)
Title 18 - Conservation of Power and Water Resources
(last rev. May 19, 2025)
Title 19 - Customs Duties
(last rev. May 14, 2025)
Title 20 - Employees' Benefits
(last rev. Mar 17, 2025)
Title 21 - Food and Drugs
(last rev. May 19, 2025)
Title 22 - Foreign Relations
(last rev. Jan 17, 2025)
Title 23 - Highways
(last rev. May 19, 2025)
Title 24 - Housing and Urban Development
(last rev. Apr 20, 2025)
Title 25 - Indians
(last rev. Mar 21, 2025)
Title 26 - Internal Revenue
(last rev. May 19, 2025)
Title 27 - Alcohol, Tobacco Products and Firearms
(last rev. Mar 20, 2025)
Title 28 - Judicial Administration
(last rev. May 02, 2025)
Title 29 - Labor
(last rev. Apr 30, 2025)
Title 30 - Mineral Resources
(last rev. Apr 14, 2025)
Title 31 - Money and Finance: Treasury
(last rev. May 14, 2025)
Title 32 - National Defense
(last rev. Jan 17, 2025)
Title 33 - Navigation and Navigable Waters
(last rev. May 19, 2025)
Title 34 - Education
(last rev. Feb 18, 2025)
Title 36 - Parks, Forests, and Public Property
(last rev. Apr 21, 2025)
Title 37 - Patents, Trademarks, and Copyrights
(last rev. Apr 30, 2025)
Title 38 - Pensions, Bonuses, and Veterans' Relief
(last rev. Apr 01, 2025)
Title 39 - Postal Service
(last rev. Apr 23, 2025)
Title 40 - Protection of Environment
(last rev. Apr 21, 2028)
Title 42 - Public Health
(last rev. May 16, 2025)
Title 43 - Public Lands: Interior
(last rev. May 16, 2025)
Title 44 - Emergency Management and Assistance
(last rev. Dec 31, 2024)
Title 45 - Public Welfare
(last rev. May 05, 2025)
Title 46 - Shipping
(last rev. Mar 17, 2025)
Title 47 - Telecommunication
(last rev. May 16, 2025)
Title 48 - Federal Acquisition Regulations System
(last rev. Oct 18, 2025)
Title 49 - Transportation
(last rev. Mar 20, 2025)
Title 50 - Wildlife and Fisheries
(last rev. May 16, 2025)
