C.F.R. » Title 30 » CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR › SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH › PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES › Subpart J—Travelways and Escapeways

30 C.F.R. § 57.11036

Ladderway trap doors and guards

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Trap doors or adequate guarding shall be provided in ladderways at each level. Doors shall be kept operable.