30 CFR § 57.4330
Surface firefighting, evacuation, and rescue procedures.
FIREFIGHTING PROCEDURES/ALARMS/DRILLS
(a) Mine operators shall establish emergency firefighting,
evacuation, and rescue procedures for the surface portions of their
operations. These procedures shall be coordinated in advance with available
firefighting organizations.
(b) Fire alarm procedures or systems shall be established to promptly
warn every person who could be endangered by a fire.
(c) Fire alarm systems shall be maintained in operable condition.