Sec. 11.21 - What are the most common
kinds of rulemaking actions for which FAA follows the Administrative
FAA follows the Administrative Procedure Act (APA) procedures for these common types of rules:
(a) Rules found in the Code of Federal Regulations;
(b) Airworthiness directives issued under part 39 of this chapter; and
(c) Airspace Designations issued under various parts of this chapter.