14 C.F.R. § 21.175 Airworthiness certificates: classification.
Title 14 - Aeronautics and Space
(a) Standard airworthiness certificates are airworthiness certificates issued for aircraft type certificated in the normal, utility, acrobatic, commuter, or transport category, and for manned free balloons, and for aircraft designated by the Administrator as special classes of aircraft. (b) Special airworthiness certificates are primary, restricted, limited, light-sport, and provisional airworthiness certificates, special flight permits, and experimental certificates. [Amdt. 21–21, 33 FR 6858, May 7, 1968, as amended by Amdt. 21–60, 52 FR 8043, Mar. 13, 1987; Amdt. 21–70, 57 FR 41368, Sept. 9, 1992; Amdt. 21–85, 69 FR 44861, July 27, 2004]
Title 14: Aeronautics and Space
PART 21—CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS
Subpart H—Airworthiness Certificates
§ 21.175 Airworthiness certificates: classification.