In these Regulations:
"special certificate of airworthiness " means:
(a) a certificate of airworthiness issued for:
(i) an aircraft type certificated in the primary, intermediate or restricted category; or
(ii) an aircraft in the limited category; or
(iii) an amateur-built aircraft accepted under an ABAA; or
(iv) a light sport aircraft covered by regulation 21.186; or
(b) a provisional certificate of airworthiness; or
(c) an experimental certificate.
"standard certificate of airworthiness " means a certificate of airworthiness issued for:
(a) an aircraft type certificated in the normal, utility, acrobatic, commuter, or transport category; or
(b) a manned free balloon; or
(c) an aircraft in a special class of aircraft.
Source FARs section 21.175 modified.