30 C.F.R. § 75.386 – Final mining of pillars. | Midpage
§ 75.386
30 C.F.R. § 75.386
Final mining of pillars.
When only one mine opening is available due to final mining of pillars, no more than 20 miners at a time shall be allowed in the mine, and the distance between the mine opening and working face shall not exceed 500 feet.