30 C.F.R. § 57.6301 Blasthole obstruction check.
Title 30 - Mineral Resources
Before loading, blastholes shall be checked and, wherever possible, cleared of obstructions.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart E—Explosives
Transportation—Surface and Underground
§ 57.6301 Blasthole obstruction check.
