773 

Federal Aviation Administration, DOT 

§ 91.801 

the U.S. for the purpose of demonstra-
tion at an airshow, the application 
may be made to the Flight Standards 
Division Manager or Aircraft Certifi-
cation Directorate Manager of the FAA 
region in which the airshow is located. 

(b) The Administrator may issue a 

special flight authorization for a for-
eign civil aircraft subject to any condi-
tions and limitations that the Admin-
istrator considers necessary for safe 
operation in the U.S. airspace. 

(c) No person may operate a foreign 

civil aircraft under a special flight au-
thorization unless that operation also 
complies with part 375 of the Special 
Regulations of the Department of 
Transportation (14 CFR part 375). 

(Approved by the Office of Management and 
Budget under control number 2120–0005) 

[Doc. No. 18334, 54 FR 34320, Aug. 18, 1989, as 
amended by Amdt. 91–212, 54 FR 39293, Sept. 
25, 1989] 

§§ 91.717–91.799

[Reserved] 

Subpart I—Operating Noise Limits 

S

OURCE

: Docket No. 18334, 54 FR 34321, Aug. 

18, 1989, unless otherwise noted. 

§ 91.801

Applicability: Relation to part 

36. 

(a) This subpart prescribes operating 

noise limits and related requirements 
that apply, as follows, to the operation 
of civil aircraft in the United States. 

(1) Sections 91.803, 91.805, 91.807, 

91.809, and 91.811 apply to civil subsonic 
jet (turbojet) airplanes with maximum 
weights of more than 75,000 pounds 
and— 

(i) If U.S. registered, that have stand-

ard airworthiness certificates; or 

(ii) If foreign registered, that would 

be required by this chapter to have a 
U.S. standard airworthiness certificate 
in order to conduct the operations in-
tended for the airplane were it reg-
istered in the United States. Those sec-
tions apply to operations to or from 
airports in the United States under 
this part and parts 121, 125, 129, and 135 
of this chapter. 

(2) Section 91.813 applies to U.S. oper-

ators of civil subsonic jet (turbojet) 
airplanes covered by this subpart. This 
section applies to operators operating 
to or from airports in the United 

States under this part and parts 121, 
125, and 135, but not to those operating 
under part 129 of this chapter. 

(3) Sections 91.803, 91.819, and 91.821 

apply to U.S.-registered civil super-
sonic airplanes having standard air-
worthiness certificates and to foreign- 
registered civil supersonic airplanes 
that, if registered in the United States, 
would be required by this chapter to 
have U.S. standard airworthiness cer-
tificates in order to conduct the oper-
ations intended for the airplane. Those 
sections apply to operations under this 
part and under parts 121, 125, 129, and 
135 of this chapter. 

(b) Unless otherwise specified, as 

used in this subpart ‘‘part 36’’ refers to 
14 CFR part 36, including the noise lev-
els under appendix C of that part, not-
withstanding the provisions of that 
part excepting certain airplanes from 
the specified noise requirements. For 
purposes of this subpart, the various 
stages of noise levels, the terms used to 
describe airplanes with respect to those 
levels, and the terms ‘‘subsonic air-
plane’’ and ‘‘supersonic airplane’’ have 
the meanings specified under part 36 of 
this chapter. For purposes of this sub-
part, for subsonic airplanes operated in 
foreign air commerce in the United 
States, the Administrator may accept 
compliance with the noise require-
ments under annex 16 of the Inter-
national Civil Aviation Organization 
when those requirements have been 
shown to be substantially compatible 
with, and achieve results equivalent to 
those achievable under, part 36 for that 
airplane. Determinations made under 
these provisions are subject to the lim-
itations of § 36.5 of this chapter as if 
those noise levels were part 36 noise 
levels. 

(c) Sections 91.851 through 91.877 of 

this subpart prescribe operating noise 
limits and related requirements that 
apply to any civil subsonic jet (tur-
bojet) airplane (for which an airworthi-
ness certificate other than an experi-
mental certificate has been issued by 
the Administrator) with a maximum 
certificated takeoff weight of more 
than 75,000 pounds operating to or from 
an airport in the 48 contiguous United 
States and the District of Columbia 
under this part, parts 121, 125, 129, or 

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