14 CFR · Part 21
140 sections, read subpart by subpart. Every section keeps its own page and exact citation.
About Part 21
Each subpart, appendix and SFAR reads as one continuous document, with its sections in the contents. Copy an exact citation or open the official eCFR text from any section.
Reflects the eCFR edition of Sep 29, 2026.
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Subpart A
§§ 21.1–21.9.
Subpart B
§§ 21.11–21.55.
Subpart C
§§ 21.71–21.85.
Subpart D
§§ 21.91–21.101.
Subpart E
§§ 21.111–21.120.
Subpart F
§§ 21.121–21.130.
Subpart G
§§ 21.131–21.150.
Subpart H
§§ 21.171–21.199.
Subpart I
§§ 21.211–21.225.
Subpart J [Reserved]
Subpart K
§§ 21.301–21.320.
Subpart L
§§ 21.321–21.335.
Subpart M [Reserved]
Subpart N
§§ 21.500–21.502.
Subpart O
§§ 21.601–21.621.
Subpart P
§ 21.700.