U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 14Chapter IPart 39 - PART 39—AIRWORTHINESS DIRECTIVES
View all text of Part 39 [§ 39.1 - § 39.27]
§ 39.1 - Purpose of this regulation.

The regulations in this part provide a legal framework for FAA's system of Airworthiness Directives.

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