• Title 1 - General Provisions (last rev. Jan 01, 1900)

• Title 2 - Grants and Agreements (last rev. Jan 01, 1900)

• Title 3 - The President (last rev. Mar 17, 2015)

• Title 4 - Accounts (last rev. Jul 18, 2024)

• Title 5 - Administrative Personnel (last rev. Apr 16, 2025)

• Title 6 - Domestic Security (last rev. Jan 14, 2025)

• Title 7 - Agriculture (last rev. Apr 14, 2025)

• Title 8 - Aliens and Nationality (last rev. Apr 14, 2025)

• Title 9 - Animals and Animal Products (last rev. Apr 21, 2025)

• Title 10 - Energy (last rev. Apr 21, 2025)

• Title 11 - Federal Elections (last rev. Feb 20, 2025)

• Title 12 - Banks and Banking (last rev. Apr 15, 2025)

• Title 13 - Business Credit and Assistance (last rev. Feb 18, 2025)

• Title 14 - Aeronautics and Space (last rev. Apr 02, 2025)

• Title 15 - Commerce and Foreign Trade (last rev. Mar 28, 2025)

• Title 16 - Commercial Practices (last rev. Apr 05, 2025)

• Title 17 - Commodity and Securities Exchanges (last rev. Apr 18, 2025)

• Title 18 - Conservation of Power and Water Resources (last rev. Mar 03, 2025)

• Title 19 - Customs Duties (last rev. Apr 11, 2025)

• Title 20 - Employees' Benefits (last rev. Mar 17, 2025)

• Title 21 - Food and Drugs (last rev. Apr 12, 2025)

• Title 22 - Foreign Relations (last rev. Jan 17, 2025)

• Title 23 - Highways (last rev. Apr 18, 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. Feb 28, 2025)

• Title 27 - Alcohol, Tobacco Products and Firearms (last rev. Mar 20, 2025)

• Title 28 - Judicial Administration (last rev. Apr 18, 2025)

• Title 29 - Labor (last rev. Apr 07, 2025)

• Title 30 - Mineral Resources (last rev. Apr 14, 2025)

• Title 31 - Money and Finance: Treasury (last rev. Apr 15, 2025)

• Title 32 - National Defense (last rev. Jan 17, 2025)

• Title 33 - Navigation and Navigable Waters (last rev. Apr 21, 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. Mar 31, 2025)

• Title 38 - Pensions, Bonuses, and Veterans' Relief (last rev. Apr 01, 2025)

• Title 39 - Postal Service (last rev. Apr 01, 2025)

• Title 40 - Protection of Environment (last rev. Nov 23, 2025)

• Title 42 - Public Health (last rev. Apr 15, 2025)

• Title 43 - Public Lands: Interior (last rev. Apr 16, 2025)

• Title 44 - Emergency Management and Assistance (last rev. Dec 31, 2024)

• Title 45 - Public Welfare (last rev. Apr 14, 2025)

• Title 46 - Shipping (last rev. Mar 17, 2025)

• Title 47 - Telecommunication (last rev. Apr 15, 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. Apr 21, 2025)