25 Pa. Code § 94.56
A new source of discharge which replaces a source of discharge forever eliminated as a result of demolition, destruction, accident, act of God or act of government shall constitute an exception to the ban if the Department determines that the following conditions are met:
The provisions of this § 94.56 adopted November 4, 1977, effective November 21, 1977, 7 Pa.B. 3259.
This section cited in 25 Pa. Code § 94.21 (relating to existing overload); 25 Pa. Code § 94.52 (relating to limitations on exception); and 25 Pa. Code § 94.53 (relating to transfer of exception).