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Code · CFR · Title 30 — Mineral Resources · Part 57 · § 57.4560

§ 57.4560. Mine entrances.

106 words·~1 min read·/us/cfr/t30/s§ 57.4560·

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For at least 200 feet inside the mine portal or collar timber used for ground support in intake openings and in exhaust openings that are designated as escapeways shall be---
(a)Provided with a fire suppression system, other than fire extinguishers and water hoses, capable of controlling a fire in its early stages; or
(b)Covered with shotcrete, gunite, or other material with equivalent fire protection characteristics; or
(c)Coated with fire-retardant paint or other material to reduce its flame spread rating to 25 or less and maintained in that condition. \[50 FR 4082, Jan. 29, 1985, as amended at 50 FR 20100, May 14, 1985\]
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§ 57.4560
Mine entrances.
Fed. Reg.×2
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