---
kind: "section"
citation: "1 C.F.R. § 21.10"
title: "1"
number: "21.10"
heading: "Sections."
url: "https://uscodex.org/cfr/1/21.10"
---

# §21.10. Sections.

- (a) **The normal divisions of a part are sections.** Sections are the basic units of the Code.
- (b) When internal division is necessary, a section may be divided into paragraphs, and paragraphs may be further subdivided using the lettering indicated in [§ 21.11](/cfr/1/21.11.md).

## Notes

### Authority

Authority: 44 U.S.C. 1506; sec. 6, E.O. 10530, 19 FR 2709; 3 CFR, 1954-1958 Comp., p. 189.

### Source

Source: 37 FR 23611, Nov. 4, 1972, unless otherwise noted.