25 Pa. Code § 87.137
Air pollution control measures shall be planned and employed as an integral part of the surface mining activities and shall meet the following requirements:
The provisions of this § 87.137 adopted December 19, 1980, 10 Pa.B. 4789, effective July 31, 1982, 12 Pa.B. 2382; amended July 30, 1982, 12 Pa.B. 2473, effective July 31, 1982, 12 Pa.B. 2382.
This section cited in 25 Pa. Code § 87.66 (relating to air pollution control plan).