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Regulations last checked for updates: Jun 04, 2025
Title 1 - General Provisions last revised: Jan 01, 1900
All Titles
Title 1
Chapter I
Part 21
Subpart A - Subpart A—General
CODE STRUCTURE
§ 21.7 - Titles and subtitles.
§ 21.8 - Chapters and subchapters.
§ 21.9 - Parts, subparts, and undesignated center heads.
§ 21.10 - Sections.
§ 21.1 - Drafting.
§ 21.6 - Notice of expiration of codified material.
NUMBERING
§ 21.11 - Standard organization of the Code of Federal Regulations.
§ 21.12 - Reservation of numbers.
§ 21.14 - Deviations from standard organization of the Code of Federal Regulations.
HEADINGS
§ 21.16 - Required document headings.
§ 21.18 - Tables of contents.
§ 21.19 - Composition of part headings.
AMENDMENTS
§ 21.20 - General requirements.
REFERENCES
§ 21.21 - General requirements: References.
§ 21.23 - Parallel citations of Code and Federal Register.
§ 21.24 - References to 1938 edition of Code.
EFFECTIVE DATE STATEMENT
§ 21.30 - General.
OMB CONTROL NUMBERS
§ 21.35 - OMB control numbers.
authority:
44 U.S.C. 1506
; sec. 6, E.O. 10530, 19 FR 2709; 3 CFR, 1954-1958 Comp., p. 189
source:
37 FR 23611, Nov. 4, 1972, unless otherwise noted.
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