30 C.F.R. § 57.6312 Secondary blasting.
Title 30 - Mineral Resources
Secondary blasts fired at the same time in the same work area shall be initiated from one source.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart E—Explosives
Transportation—Surface and Underground
§ 57.6312 Secondary blasting.
