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 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES › Subpart E—Explosives

30 C.F.R. § 56.6301

Blasthole obstruction check

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Before loading, blastholes shall be checked and, wherever possible, cleared of obstructions.