Code of Federal Regulations List of Subjects

This is a list of Code of Federal Regulations (CFR) Subjects arranged by CFR Title and Part. The files are  current as of October 1, 2024.

The Code of Federal Regulations (CFR) is an annual codification of the general and permanent rules published in the Federal Register by the executive departments and agencies of the Federal Government.

• Every Rule or Proposed Rule document in the Federal Register must set out indexing terms for each CFR part that it affects.

CFR Titles

Select a CFR title to view the indexing terms currently assigned to individual parts:

1   |   2   |   3   |   4   |   5   |   6   |   7   |   8   |   9   |   10

11   |   12   |   13   |   14   |   15   |   16   |   17   |   18   |   19   |   20

21   |   22   |   23   |   24   |   25   |   26   |   27   |   28   |   29   |   30

31   |   32   |   33   |   34   |   35   |   36   |   37   |   38   |   39   |   40

41   |   42   |   43   |   44   |   45   |   46   |   47   |   48   |   49   |   50

For a list of all Federal Register indexing terms, see the Federal Register Thesaurus of Indexing Terms.

The Thesaurus was last updated as of April 1, 2024.