30 C.F.R. § 57.7801 Jet drills.
Title 30 - Mineral Resources
Jet piercing drills shall be provided with: (a) A system to pressurize the equipment operator's cab, when a cab is provided; and (b) A protective cover over the oxygen flow indicator.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart F—Drilling and Rotary Jet Piercing
Rotary Jet Piercing—Surface Only
§ 57.7801 Jet drills.
