30-2-602. Storage of flammable materials; smoking restricted; fire doors.
(a) Surface storage of oils, grease and other flammable materials shall be in a storage area located at a safe distance from the powder magazine. Flammable materials shall be removed from the storage area for use only in quantities necessary to meet the requirements of a day. Structures in the storage area shall be of fire-resistive material and well ventilated. Tight metal receptacles shall be provided for oily waste.
(b) Smoking in or about surface structures shall be restricted to places where it will not cause fire or an explosion.
(c) Unless existing structures located within one hundred (100) feet of any mine opening are of reasonably fireproof construction, fire doors shall be erected at effective points in mine openings to prevent smoke or fire from outside sources endangering men working underground. These doors shall be tested at least monthly and kept in effective operation.