Section 121.318

14 CFR Ch. I (1-1-19 Edition)

need not meet the requirements of
paragraph (a) of this section.
(e) No person may operate an airplane unless there is installed in each
lavatory a sign or placard that reads:
 - Federal law provides for a penalty of
up to $2,000 for tampering with the
smoke detector installed in this lavatory. -  These signs or placards need not
meet the requirements of paragraph (a)
of this section.
(f) Each passenger required by
Section 121.311(b) to occupy a seat or berth
shall fasten his or her safety belt about
him or her and keep it fastened while
the  - Fasten Seat Belt -  sign is lighted.
(g) No person may smoke while a  - No
Smoking -  sign is lighted or while  - No
Smoking -  placards are posted, except
as follows:
(1) Supplemental operations. The pilot
in command of an airplane engaged in
a supplemental operation may authorize smoking on the flight deck (if it is
physically separated from any passenger compartment), but not in any of
the following situations:
(i) During airplane movement on the
surface or during takeoff or landing;
(ii) During scheduled passenger-carrying public charter operations conducted under part 380 of this title; or
(iii) During any operation where
smoking is prohibited by part 252 of
this title or by international agreement.
(2) Certain intrastate domestic operations. Except during airplane movement on the surface or during takeoff
or landing, a pilot in command of an
airplane engaged in a domestic operation may authorize smoking on the
flight deck (if it is physically separated
from the passenger compartment) if - 
(i) Smoking on the flight deck is not
otherwise prohibited by part 252 of this
title;
(ii) The flight is conducted entirely
within the same State of the United
States (a flight from one place in Hawaii to another place in Hawaii
through the airspace over a place outside of Hawaii is not entirely within
the same State); and
(iii) The airplane is either not turbojet-powered or the airplane is not capable of carrying at least 30 passengers.
(h) No person may smoke in any airplane lavatory.

(i) No person may tamper with, disable, or destroy any smoke detector installed in any airplane lavatory.
(j) On flight segments other than
those described in paragraph (c) of this
section, the  - No Smoking -  sign must
be turned on during any movement on
the surface, for each takeoff, for each
landing, and at any other time considered necessary by the pilot in command.
(k) Each passenger shall comply with
instructions given him or her by a
crewmember
regarding
compliance
with paragraphs (f), (g), (h), and (l) of
this section.
(l) A certificate holder may operate a
nontransport category airplane type
certificated after December 31, 1964,
that is manufactured before December
20, 1997, if it is equipped with at least
one placard that is legible to each person seated in the cabin that states
 - Fasten Seat Belt, -  and if, during any
movement on the surface, for each
takeoff, for each landing, and at any
other time considered necessary by the
pilot in command, a crewmember orally instructs the passengers to fasten
their seat belts.
[Doc. No. 25590, 53 FR 12361, Apr. 13, 1988, as
amended by Amdt. 121-196, 53 FR 44182, Nov.
2, 1988; Amdt. 121-213, 55 FR 8367, Mar. 7, 1990;
Amdt. 121-230, 57 FR 42673, Sept. 15, 1992;
Amdt. 121-251, 60 FR 65931, Dec. 20, 1995;
Amdt. 121-256, 61 FR 30434, June 14, 1996;
Amdt. 121-277, 65 FR 36779, June 9, 2000]

Section 121.318

Public address system.

No person may operate an airplane
with a seating capacity of more than 19
passengers unless it is equipped with a
public address system which - 
(a) Is capable of operation independent of the crewmember interphone
system required by Section 121.319, except for
handsets, headsets, microphones, selector switches, and signaling devices;
(b) Is approved in accordance with
Section 21.305 of this chapter;
(c) Is accessible for immediate use
from each of two flight crewmember
stations in the pilot compartment;
(d) For each required floor-level passenger emergency exit which has an adjacent flight attendant seat, has a
microphone which is readily accessible
to the seated flight attendant, except
that one microphone may serve more

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