14 C.F.R. § 21.171 Applicability.
Title 14 - Aeronautics and Space
This subpart prescribes procedural requirements for the issue of airworthiness certificates.
Title 14: Aeronautics and Space
PART 21—CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS
Subpart H—Airworthiness Certificates
§ 21.171 Applicability.