The owner or operator of the developed facility shall ensure that there is a check-in/check-out system, which will inform personnel on the surface of the mine as to who is currently in the developed facility.
25 Pa. Code § 207.319
The owner or operator of the developed facility shall ensure that there is a check-in/check-out system, which will inform personnel on the surface of the mine as to who is currently in the developed facility.
25 Pa. Code § 207.319