Section 57.4200 - General requirements(a) For fighting fires that could endanger persons, each mine shall have- (1) Onsite firefighting equipment for fighting fires in their early stages; and(2) Onsite firefighting equipment for fighting fires beyond their early stages, or the mine shall have made prior arrangements with a local fire department to fight such fires.(b) This onsite firefighting equipment shall be-(1) Of the type, size, and quantity that can extinguish fires of any class which would occur as a result of the hazards present; and(2) Strategically located, readily accessible, plainly marked, and maintained in fire-ready condition.50 FR 4082, Jan. 29, 1985, as amended at 50 FR 20100, May 14, 1985