47 CFR § 1.399
Scope
February 16, 2021
This subpart shall be applicable to notice and comment rulemakings proceedings conducted under 5 U.S.C. 553, and shall have no application to formal rulemaking (or rate making) proceedings unless the Commission directs that it shall govern the conduct of a particular proceeding.
[42 FR 25735, May 19, 1977]