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113 

Federal Aviation Administration, DOT 

§ 121.312 

equipped at each flight deck station 
with a combined safety belt and shoul-
der harness that meets the applicable 
requirements specified in § 25.785 of this 
chapter, effective March 6, 1980, except 
that— 

(1) Shoulder harnesses and combined 

safety belt and shoulder harnesses that 
were approved and installed before 
March 6, 1980, may continue to be used; 
and 

(2) Safety belt and shoulder harness 

restraint systems may be designed to 
the inertia load factors established 
under the certification basis of the air-
plane. 

(g) Each flight attendant must have a 

seat for takeoff and landing in the pas-
senger compartment that meets the re-
quirements of § 25.785 of this chapter, 
effective March 6, 1980, except that— 

(1) Combined safety belt and shoulder 

harnesses that were approved and in-
stalled before March, 6, 1980, may con-
tinue to be used; and 

(2) Safety belt and shoulder harness 

restraint systems may be designed to 
the inertia load factors established 
under the certification basis of the air-
plane. 

(3) The requirements of § 25.785(h) do 

not apply to passenger seats occupied 
by flight attendants not required by 
§ 121.391. 

(h) Each occupant of a seat equipped 

with a shoulder harness or with a com-
bined safety belt and shoulder harness 
must have the shoulder harness or 
combined safety belt and shoulder har-
ness properly secured about that occu-
pant during takeoff and landing, except 
that a shoulder harness that is not 
combined with a safety belt may be un-
fastened if the occupant cannot per-
form the required duties with the 
shoulder harness fastened. 

(i) At each unoccupied seat, the safe-

ty belt and shoulder harness, if in-
stalled, must be secured so as not to 
interfere with crewmembers in the per-
formance of their duties or with the 
rapid egress of occupants in an emer-
gency. 

(j) After October 27, 2009, no person 

may operate a transport category air-
plane type certificated after January 1, 
1958 and manufactured on or after Oc-
tober 27, 2009 in passenger-carrying op-
erations under this part unless all pas-

senger and flight attendant seats on 
the airplane meet the requirements of 
§ 25.562 in effect on or after June 16, 
1988. 

(k) 

Seat dimension disclosure. 

(1) Each 

air carrier that conducts operations 
under this part and that has a Web site 
must make available on its Web site 
the width of the narrowest and widest 
passenger seats in each class of service 
for each airplane make, model and se-
ries operated by that air carrier in pas-
senger-carrying operations. 

(2) For purposes of paragraph (k)(1) of 

this section, the width of a passenger 
seat means the distance between the 
inside of the armrests for that seat. 

[Doc. No. 7522, 32 FR 13267, Sept. 20, 1967] 

E

DITORIAL

N

OTE

: For F

EDERAL

R

EGISTER

ci-

tations affecting § 121.311, see the List of CFR 
Sections Affected, which appears in the 
Finding Aids section of the printed volume 
and at 

www.govinfo.gov. 

§ 121.312

Materials for compartment 

interiors. 

(a) 

All interior materials; transport cat-

egory airplanes and nontransport cat-
egory airplanes type certificated before 
January 1, 1965. 

Except for the mate-

rials covered by paragraph (b) of this 
section, all materials in each compart-
ment of a transport category airplane, 
or a nontransport category airplane 
type certificated before January 1, 1965, 
used by the crewmembers and pas-
sengers, must meet the requirements of 
§ 25.853 of this chapter in effect as fol-
lows, or later amendment thereto: 

(1) 

Airplane with passenger seating ca-

pacity of 20 or more

—(i) 

Manufactured 

after August 19, 1988, but prior to August 
20, 1990. 

Except as provided in para-

graph (a)(3)(ii) of this section, each air-
plane with a passenger capacity of 20 or 
more and manufactured after August 
19, 1988, but prior to August 20, 1990, 
must comply with the heat release rate 
testing provisions of § 25.853(d) in effect 
March 6, 1995 (formerly § 25.853(a–1) in 
effect on August 20, 1986) (see App. L of 
this part), except that the total heat 
release over the first 2 minutes of sam-
ple exposure must not exceed 100 kilo-
watt minutes per square meter and the 
peak heat release rate must not exceed 
100 kilowatts per square meter. 

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