(1)
Except for Group B, Division 1 and Group F, Division 1 major occupancies, where a fire alarm system is required under Subsection 3.2.4., a one-way voice communication system shall be installed in buildings where a 2-stage fire alarm system is installed and whose occupant load exceeds 1 000.
(2)
The one-way voice communication system required by Sentence (1) shall consist of loudspeakers that are
(a)
operated from the central alarm and control facility or, in the absence of a central alarm and control facility, from a designated area, and
(b)
except in elevator cars, designed and located so that transmitted messages are audible and intelligible in all parts of the building. (See Note A-3.2.4.22.(1)(b))
(3)
Where the facility is not equipped with staff trained to provide instructions over the loudspeakers, a pre-recorded message shall be provided.
(4)
The voice communication system required by Sentence (1) shall meet the silencing and transmission requirements of Sentences 3.2.4.22.(2) to (4) and (6).