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eCFR

The Electronic Code of Federal Regulations

eCFR

Reader Aids

Reader Aids help people use and understand the eCFR. Reader Aids information is not published in the Code of Federal Regulations.

Welcome to the eCFR! Check out our Getting Started guide to make the most of the site.

Titles

 Last Amended Recent Changes
Title 1 :: General Provisions Dec 29, 2022
Title 2 :: Federal Financial Assistance Apr 09, 2026 view changes
Title 3 :: The President Mar 17, 2015
Title 4 :: Accounts Jul 18, 2024
Title 5 :: Administrative Personnel Jun 04, 2026 view changes
Title 6 :: Domestic Security Feb 09, 2026 view changes
Title 7 :: Agriculture Jun 08, 2026 view changes
Title 8 :: Aliens and Nationality May 29, 2026 view changes
Title 9 :: Animals and Animal Products Jun 03, 2026 view changes
Title 10 :: Energy Jun 03, 2026 view changes
Title 11 :: Federal Elections Feb 20, 2025 view changes
Title 12 :: Banks and Banking Jun 03, 2026 view changes
Title 13 :: Business Credit and Assistance May 04, 2026 view changes
Title 14 :: Aeronautics and Space May 27, 2026 view changes
Title 15 :: Commerce and Foreign Trade May 26, 2026 view changes
Title 16 :: Commercial Practices May 14, 2026 view changes
Title 17 :: Commodity and Securities Exchanges Jun 08, 2026 view changes
Title 18 :: Conservation of Power and Water Resources May 28, 2026 view changes
Title 19 :: Customs Duties May 13, 2026 view changes
Title 20 :: Employees' Benefits May 20, 2026 view changes
Title 21 :: Food and Drugs Jun 05, 2026 view changes
Title 22 :: Foreign Relations May 27, 2026 view changes
Title 23 :: Highways May 11, 2026 view changes
Title 24 :: Housing and Urban Development May 22, 2026 view changes
Title 25 :: Indians Dec 01, 2025
Title 26 :: Internal Revenue Jun 04, 2026 view changes
Title 27 :: Alcohol, Tobacco Products and Firearms Jun 08, 2026 view changes
Title 28 :: Judicial Administration May 21, 2026 view changes
Title 29 :: Labor Jun 04, 2026 view changes
Title 30 :: Mineral Resources May 29, 2026 view changes
Title 31 :: Money and Finance: Treasury May 06, 2026 view changes
Title 32 :: National Defense Mar 09, 2026 view changes
Title 33 :: Navigation and Navigable Waters Jun 08, 2026 view changes
Title 34 :: Education May 19, 2026 view changes
Title 35 :: Reserved
Title 36 :: Parks, Forests, and Public Property Jun 05, 2026 view changes
Title 37 :: Patents, Trademarks, and Copyrights Mar 30, 2026 view changes
Title 38 :: Pensions, Bonuses, and Veterans' Relief Feb 27, 2026 view changes
Title 39 :: Postal Service May 15, 2026 view changes
Title 40 :: Protection of Environment Jun 08, 2026 view changes
Title 41 :: Public Contracts and Property Management May 07, 2026 view changes
Title 42 :: Public Health Jun 03, 2026 view changes
Title 43 :: Public Lands: Interior May 22, 2026 view changes
Title 44 :: Emergency Management and Assistance Dec 31, 2024 view changes
Title 45 :: Public Welfare Jun 04, 2026 view changes
Title 46 :: Shipping Jun 05, 2026 view changes
Title 47 :: Telecommunication Jun 08, 2026 view changes
Title 48 :: Federal Acquisition Regulations System May 07, 2026 view changes
Title 49 :: Transportation Jun 08, 2026 view changes
Title 50 :: Wildlife and Fisheries Jun 07, 2026 view changes

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

Learn more about the eCFR, its status, and the editorial process.

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