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433 

Federal Aviation Administration, DOT 

§ 135.93 

carry or operate a portable oxygen con-
centrator for personal use on board an 
aircraft and a certificate holder may 
allow a passenger to carry or operate a 
portable oxygen concentrator on board 
an aircraft operated under this part 
during all phases of flight if the port-
able oxygen concentrator satisfies all 
of the requirements of this paragraph 
(f): 

(i) Is legally marketed in the United 

States in accordance with Food and 
Drug Administration requirements in 
title 21 of the CFR; 

(ii) Does not radiate radio frequency 

emissions that interfere with aircraft 
systems; 

(iii) Generates a maximum oxygen 

pressure of less than 200 kPa gauge 
(29.0 psig/43.8 psia) at 20 

°

C (68 

°

F); 

(iv) Does not contain any hazardous 

materials subject to the Hazardous Ma-
terials Regulations (49 CFR parts 171 
through 180) except as provided in 49 
CFR 175.10 for batteries used to power 
portable electronic devices and that do 
not require aircraft operator approval; 
and 

(v) Bears a label on the exterior of 

the device applied in a manner that en-
sures the label will remain affixed for 
the life of the device and containing 
the following certification statement 
in red lettering: ‘‘The manufacturer of 
this POC has determined this device 
conforms to all applicable FAA accept-
ance criteria for POC carriage and use 
on board aircraft.’’ The label require-
ments in this paragraph (f)(1)(v) do not 
apply to the following portable oxygen 
concentrators approved by the FAA for 
use on board aircraft prior to May 24, 
2016: 

(A) AirSep Focus; 
(B) AirSep FreeStyle; 
(C) AirSep FreeStyle 5; 
(D) AirSep LifeStyle; 
(E) Delphi RS–00400; 
(F) DeVilbiss Healthcare iGo; 
(G) Inogen One; 
(H) Inogen One G2; 
(I) Inogen One G3; 
(J) Inova Labs LifeChoice; 
(K) Inova Labs LifeChoice Activox; 
(L) International Biophysics 

LifeChoice; 

(M) Invacare Solo2; 
(N) Invacare XPO2; 

(O) Oxlife Independence Oxygen Con-

centrator; 

(P) Oxus RS–00400; 
(Q) Precision Medical EasyPulse; 
(R) Respironics EverGo; 
(S) Respironics SimplyGo; 
(T) SeQual Eclipse; 
(U) SeQual eQuinox Oxygen System 

(model 4000); 

(V) SeQual Oxywell Oxygen System 

(model 4000); 

(W) SeQual SAROS; and 
(X) VBox Trooper Oxygen Concen-

trator. 

(2) 

Operating requirements. 

Portable 

oxygen concentrators that satisfy the 
acceptance criteria identified in para-
graph (f)(1) of this section may be car-
ried on or operated by a passenger on 
board an aircraft provided the aircraft 
operator ensures that all of the condi-
tions in this paragraph (f)(2) are satis-
fied: 

(i) 

Exit seats. 

No person operating a 

portable oxygen concentrator is per-
mitted to occupy an exit seat. 

(ii) 

Stowage of device. 

During move-

ment on the surface, takeoff and land-
ing, the device must be stowed under 
the seat in front of the user, or in an-
other approved stowage location so 
that it does not block the aisle way or 
the entryway to the row. If the device 
is to be operated by the user, it must 
be operated only at a seat location that 
does not restrict any passenger’s access 
to, or use of, any required emergency 
or regular exit, or the aisle(s) in the 
passenger compartment. 

[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978, as 
amended by Amdt. 135–60, 61 FR 2616, Jan. 26, 
1996; Docket FAA–2014–0554, Amdt. 135–133, 81 
FR 33119, May 24, 2016; Docket FAA–2018–0119, 
Amdt. 135–139, 83 FR 9175, Mar. 5, 2018] 

§ 135.93 Minimum altitudes for use of 

autopilot. 

(a) 

Definitions. 

For purpose of this 

section— 

(1) Altitudes for takeoff/initial climb 

and go-around/missed approach are de-
fined as above the airport elevation. 

(2) Altitudes for enroute operations 

are defined as above terrain elevation. 

(3) Altitudes for approach are defined 

as above the touchdown zone elevation 
(TDZE), unless the altitude is specifi-
cally in reference to DA (H) or MDA, in 

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434 

14 CFR Ch. I (1–1–24 Edition) 

§ 135.95 

which case the altitude is defined by 
reference to the DA(H) or MDA itself. 

(b) 

Takeoff and initial climb. 

No person 

may use an autopilot for takeoff or ini-
tial climb below the higher of 500 feet 
or an altitude that is no lower than 
twice the altitude loss specified in the 
Airplane Flight Manual (AFM), except 
as follows— 

(1) At a minimum engagement alti-

tude specified in the AFM; or 

(2) At an altitude specified by the Ad-

ministrator, whichever is greater. 

(c) 

Enroute. 

No person may use an 

autopilot enroute, including climb and 
descent, below the following— 

(1) 500 feet; 
(2) At an altitude that is no lower 

than twice the altitude loss specified in 
the AFM for an autopilot malfunction 
in cruise conditions; or 

(3) At an altitude specified by the Ad-

ministrator, whichever is greater. 

(d) 

Approach. 

No person may use an 

autopilot at an altitude lower than 50 
feet below the DA(H) or MDA for the 
instrument procedure being flown, ex-
cept as follows— 

(1) For autopilots with an AFM speci-

fied altitude loss for approach oper-
ations— 

(i) An altitude no lower than twice 

the specified altitude loss if higher 
than 50 feet below the MDA or DA(H); 

(ii) An altitude no lower than 50 feet 

higher than the altitude loss specified 
in the AFM, when the following condi-
tions are met— 

(A) Reported weather conditions are 

less than the basic VFR weather condi-
tions in § 91.155 of this chapter; 

(B) Suitable visual references speci-

fied in § 91.175 of this chapter have been 
established on the instrument ap-
proach procedure; and 

(C) The autopilot is coupled and re-

ceiving both lateral and vertical path 
references; 

(iii) An altitude no lower than the 

higher of the altitude loss specified in 
the AFM or 50 feet above the TDZE, 
when the following conditions are 
met— 

(A) Reported weather conditions are 

equal to or better than the basic VFR 
weather conditions in § 91.155 of this 
chapter; and 

(B) The autopilot is coupled and re-

ceiving both lateral and vertical path 
references; or 

(iv) A greater altitude specified by 

the Administrator. 

(2) For autopilots with AFM specified 

approach altitude limitations, the 
greater of— 

(i) The minimum use altitude speci-

fied for the coupled approach mode se-
lected; 

(ii) 50 feet; or 
(iii) An altitude specified by Admin-

istrator. 

(3) For autopilots with an AFM speci-

fied negligible or zero altitude loss for 
an autopilot approach mode malfunc-
tion, the greater of— 

(i) 50 feet; or 
(ii) An altitude specified by Adminis-

trator. 

(4) If executing an autopilot coupled 

go-around or missed approach using a 
certificated and functioning autopilot 
in accordance with paragraph (e) in 
this section. 

(e) 

Go-Around/Missed Approach. 

No 

person may engage an autopilot during 
a go-around or missed approach below 
the minimum engagement altitude 
specified for takeoff and initial climb 
in paragraph (b) in this section. An 
autopilot minimum use altitude does 
not apply to a go-around/missed ap-
proach initiated with an engaged auto-
pilot. Performing a go-around or 
missed approach with an engaged auto-
pilot must not adversely affect safe ob-
stacle clearance. 

(f) 

Landing. 

Notwithstanding para-

graph (d) of this section, autopilot min-
imum use altitudes do not apply to 
autopilot operations when an approved 
automatic landing system mode is 
being used for landing. Automatic 
landing systems must be authorized in 
an operations specification issued to 
the operator. 

(g) This section does not apply to op-

erations conducted in rotorcraft. 

[Doc. No. FAA–2012–1059, 79 FR 6088, Feb. 3, 
2014] 

§ 135.95 Airmen: Limitations on use of 

services. 

(a) No certificate holder may use the 

services of any person as an airman un-
less the person performing those serv-
ices—