Pennsylvania Code
Title 25 - ENVIRONMENTAL PROTECTION
Part I - Department of Environmental Protection
Subpart C - Protection of Natural Resources
Article I - Land Resources
Chapter 88 - ANTHRACITE COAL
Subchapter B - SURFACE ANTHRACITE COAL MINES: MINIMUM ENVIRONMENTAL PROTECTION PERFORMANCE STANDARDS
Section 88.113 - Protection of underground mining

No surface coal mining activities may be conducted in close proximity to any point of an active underground mine, to the extent that the surface mining activities could be declared a nuisance and danger to the health, safety and welfare of persons within an active underground mine. All surface mining activities shall be conducted with and in compliance with the Pennsylvania Anthracite Coal Mine Act (52 P. S. §§ 70-101-70-145).

This section cited in 25 Pa. Code § 88.54 (relating to surface mining near underground mining); and 25 Pa. Code § 88.381 (relating to general requirements).