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U.S. Administrative Law (Regulations)

Federal Register / Code of Federal Regulations

Code of Federal Regulations

The Code of Federal Regulations (CFR) is a subject arrangement of the general and permanent rules issued by the executive departments and agencies of the federal government which were originally published in the Federal Register.
Each volume of the CFR is revised annually: the revision date is on the cover and the color of the cover changes every year.

Code of Federal Regulations
In the Library Code of Federal Regulations
Reference KF 70 A3
Indexes CFR Index and Finding Aids.
Reference KF 70 .A34 C6 (shelved at the end of the Federal Register)
Index to the Code of Federal Regulations.
Reference KF 70 .A3 index 2000 and supplements
This index provides more in-depth subject access to the CFR.

1996-   via GPO's FDSyS:
             Browse by Title
            or use the Advanced Search:
            (select Code of Federal Regulations and search by keyword, title, section, etc.)

1938-1995  via Library of Congress' free access to HeinOnline
            Browse by date and CFR Title

    Not an official legal edition of the CFR.
    The e-CFR is an editorial compilation of CFR material and Federal Register amendments.
     Updated daily.

Arrangement of the CFR

  • The CFR is divided into 50 titles or broad subject areas.
  • Each title is divided into chapters (I, II, III, etc.) which usually bear the name of the issuing agency.
  • Chapters are divided into parts (1, 2, 3, etc.) covering a single subject or agency function.
  • Subparts (A, B, C, etc.) group related sections within a part.
  • Parts are divided into sections, the basic unit of the CFR.
    Section numbers include the symbol §, the number of the part, a period, and the section number.
    For example, §25.3 is the third section in part 25.
  • Sections may be further divided into paragraphs e.g., (a), (b), (c).
 Title 50 - Wildlife and Fisheries
    Chapter I - US Fish and Wildlife Service, Department of Interior
       Part 17 - Endangered and threatened wildlife and plants
          Subpart B - Lists
             Section 17.11 - Endangered and threatened wildlife
                Paragraph (h)- List of Endangered and threatened wildlife 

[Reserved] indicates that a segment has been established for future use or that it has been vacated from previous use.