The provisions of 30 CFR 77.1000 (relating to highwalls, pits and spoil banks; plans) are incorporated by reference.
25 Pa. Code § 208.291
The provisions of this §208.291 issued under sections 106 and 106.1 of the Bituminous Coal Mine Safety Act (52 P. S. §§ 690-106 and 690-106.1).