StacksVerified U.S. regulatory reference

14 CFR §11.21

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
FAA follows the Administrative Procedure Act (APA) procedures for these common types of rules:
  1. (a)Rules found in the Code of Federal Regulations;
  2. (b)Airworthiness directives issued under part 39 of this chapter; and
  3. (c)Airspace Designations issued under various parts of this chapter.