1 CFR § 21.53 - Nonstatutory materials.
---
identifier: "/us/cfr/t1/s21.53"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "1 CFR § 21.53 - Nonstatutory materials."
title_number: 1
title_name: "General Provisions"
section_number: "21.53"
section_name: "Nonstatutory materials."
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: "Special Civil Air Reg. SR-422A, 28 FR 6703, 14 CFR part 4b. E.O. 11130, 28 FR 12789; 3 CFR 1959-1963 Comp."
regulatory_source: "37 FR 23611, Nov. 4, 1972, unless otherwise noted."
cfr_part: "21"
---
# 21.53 Nonstatutory materials.
Nonstatutory documents shall be cited by document designation and by *Federal Register* volume and page, followed, if possible, by the parallel citation to the Code of Federal Regulations. For example:
Special Civil Air Reg. SR-422A, 28 FR 6703, 14 CFR part 4b. E.O. 11130, 28 FR 12789; 3 CFR 1959-1963 Comp.
[37 FR 23611, Nov. 4, 1972, as amended at 54 FR 9683, Mar. 7, 1989]