30 C.F.R. § 56.7013 Covering or guarding drill holes.
Title 30 - Mineral Resources
Drill holes large enough to constitute a hazard shall be covered or guarded.
Title 30: Mineral Resources
PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES
Subpart F—Drilling and Rotary Jet Piercing
Drilling
§ 56.7013 Covering or guarding drill holes.
