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 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 14 - Aeronautics and Space (last rev. May 07, 2025)
Title 16 - Commercial Practices (last rev. May 12, 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 25 - Indians (last rev. Mar 21, 2025)
Title 26 - Internal Revenue (last rev. May 19, 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 32 - National Defense (last rev. Jan 17, 2025)
Title 34 - Education (last rev. Feb 18, 2025)
Title 39 - Postal Service (last rev. Apr 23, 2025)
Title 42 - Public Health (last rev. May 16, 2025)
Title 43 - Public Lands: Interior (last rev. May 16, 2025)
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 49 - Transportation (last rev. Mar 20, 2025)
Title 50 - Wildlife and Fisheries (last rev. May 16, 2025)