U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 1Chapter IPart 21Subpart B - Subpart B—Citations of Authority

PLACEMENT
§ 21.43 - Placing and amending authority citations.
§ 21.45 - Nonstatutory authority.
§ 21.40 - General requirements: Authority citations.
§ 21.41 - Agency responsibility.
§ 21.42 - Exceptions.

FORM
§ 21.51 - General.
§ 21.52 - Statutory material.
§ 21.53 - Nonstatutory materials.
© 2016 GovRegs | About | Disclaimer | Privacy