(a) Refuge alternatives shall be provided with a communications system that consists of—
(1) A two-way communication facility that is a part of the mine communication system, which can be used from inside the refuge alternative; and
(2) An additional communication system and other requirements as defined in the communications portion of the operator's approved Emergency Response Plan.
[73 FR 80700, Dec. 31, 2008]
source: 35 FR 17890, Nov. 20, 1970, unless otherwise noted.
cite as: 30 CFR 75.1600-3