30 C.F.R. § 72.620 Drill dust control at surface mines and surface areas of underground mines.
Title 30 - Mineral Resources
Holes shall be collared and drilled wet, or other effective dust control measures shall be used, when drilling non-water-soluble material. Effective dust control measures shall be used when drilling water-soluble material.
Title 30: Mineral Resources
PART 72—HEALTH STANDARDS FOR COAL MINES
Subpart E—Miscellaneous
§ 72.620 Drill dust control at surface mines and surface areas of underground mines.
