30 C.F.R. § 57.6604 Precautions during storms.
Title 30 - Mineral Resources
During the approach and progress of an electrical storm— (a) Surface blasting operations shall be suspended and persons withdrawn from the blast area or to a safe location; or (b) Underground electrical blasting operations that are capable of being initiated by lightning shall be suspended and all persons withdrawn from the blast area or to a safe location.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart E—Explosives
Extraneous Electricity—Surface and Underground
§ 57.6604 Precautions during storms.
