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CFR > Title 30 - Mineral Resources > CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR > SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH (parts 56 to 58) > PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES > SUBPART F—Drilling and Rotary Jet Piercing (§57.7002 to §57.7807) > 57.7013—Covering or guarding drill holes.
57.7013—Covering or guarding drill holes.
Drill holes large enough to constitute a hazard shall be covered or guarded.