30 CFR § 56.7801
Jet drills
July 29, 2020
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.
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.