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Federal Aviation Administration, DOT 

§ 91.203 

their operations specifications or man-
agement specifications, as applicable. 

[Doc. No. 18334, 54 FR 34294, Aug. 18, 1989, as 
amended by Amdt. 91–280, 68 FR 54560, Sept. 
17, 2003; Amdt. 91–296, 72 FR 31679, June 7, 
2007; Docket FAA–2013–0485, Amdt. 91–345, 81 
FR 90175, Dec. 13, 2016] 

§ 91.191

Category II and Category III 


(a) Except as provided in paragraph 

(c) of this section, after August 4, 1997, 
no person may operate a U.S.-reg-
istered civil aircraft in a Category II or 
a Category III operation unless— 

(1) There is available in the aircraft a 

current and approved Category II or 
Category III manual, as appropriate, 
for that aircraft; 

(2) The operation is conducted in ac-

cordance with the procedures, instruc-
tions, and limitations in the appro-
priate manual; and 

(3) The instruments and equipment 

listed in the manual that are required 
for a particular Category II or Cat-
egory III operation have been inspected 
and maintained in accordance with the 
maintenance program contained in the 

(b) Each operator must keep a cur-

rent copy of each approved manual at 
its principal base of operations and 
must make each manual available for 
inspection upon request by the Admin-

(c) This section does not apply to op-

erations conducted by a certificate 
holder operating under part 121 or part 
135 of this chapter or a holder of man-
agement specifications issued in ac-
cordance with subpart K of this part. 

[Doc. No. 26933, 61 FR 34560, July 2, 1996, as 
amended by Amdt. 91–280, 68 FR 54560, Sept. 
17, 2003] 

§ 91.193

Certificate of authorization 

for certain Category II operations. 

The Administrator may issue a cer-

tificate of authorization authorizing 
deviations from the requirements of 
§§ 91.189, 91.191, and 91.205(f) for the op-
eration of small aircraft identified as 
Category A aircraft in § 97.3 of this 
chapter in Category II operations if the 
Administrator finds that the proposed 
operation can be safely conducted 
under the terms of the certificate. 
Such authorization does not permit op-

eration of the aircraft carrying persons 
or property for compensation or hire. 

§§ 91.195–91.199


Subpart C—Equipment, Instru-

ment, and Certificate Re-



: Docket No. 18334, 54 FR 34304, Aug. 

18, 1989, unless otherwise noted. 

§ 91.201


§ 91.203

Civil aircraft: Certifications 


(a) Except as provided in § 91.715, no 

person may operate a civil aircraft un-
less it has within it the following: 

(1) An appropriate and current air-

worthiness certificate. Each U.S. air-
worthiness certificate used to comply 
with this subparagraph (except a spe-
cial flight permit, a copy of the appli-
cable operations specifications issued 
under § 21.197(c) of this chapter, appro-
priate sections of the air carrier man-
ual required by parts 121 and 135 of this 
chapter containing that portion of the 
operations specifications issued under 
§ 21.197(c), or an authorization under 
§ 91.611) must have on it the registra-
tion number assigned to the aircraft 
under part 47 of this chapter. However, 
the airworthiness certificate need not 
have on it an assigned special identi-
fication number before 10 days after 
that number is first affixed to the air-
craft. A revised airworthiness certifi-
cate having on it an assigned special 
identification number, that has been 
affixed to an aircraft, may only be ob-
tained upon application to an FAA 
Flight Standards district office. 

(2) An effective U.S. registration cer-

tificate issued to its owner or, for oper-
ation within the United States, the 
second copy of the Aircraft registra-
tion Application as provided for in 
§ 47.31(c), a Certificate of Aircraft reg-
istration as provided in part 48, or a 
registration certification issued under 
the laws of a foreign country. 

(b) No person may operate a civil air-

craft unless the airworthiness certifi-
cate required by paragraph (a) of this 
section or a special flight authoriza-
tion issued under § 91.715 is displayed at 

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