1 CFR § 21.20 - General requirements.

---
identifier: "/us/cfr/t1/s21.20"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "1 CFR § 21.20 - General requirements."
title_number: 1
title_name: "General Provisions"
section_number: "21.20"
section_name: "General requirements."
chapter_name: "ADMINISTRATIVE COMMITTEE OF THE FEDERAL REGISTER"
subchapter_number: "E"
subchapter_name: "PREPARATION, TRANSMITTAL, AND PROCESSING OF DOCUMENTS"
part_number: "21"
part_name: "PREPARATION OF DOCUMENTS SUBJECT TO CODIFICATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "44 U.S.C. 1506; sec. 6, E.O. 10530, 19 FR 2709; 3 CFR, 1954-1958 Comp., p. 189."
regulatory_source: "37 FR 23611, Nov. 4, 1972, unless otherwise noted."
cfr_part: "21"
---


# 21.20 General requirements.

(a) Each amendatory document shall identify in specific terms the unit amended, and the extent of the changes made.

(b) The number and heading of each section amended shall be set forth in full on a separate line.