12 Pa. Code § 145.98
An interested person may request the Department to grant a variance from the requirements of this chapter as applied to the person. The person shall furnish the Department with the information pertaining to its request for a variance as the Department may deem necessary for an informed decision. The variance may be granted by the Department only if the following conditions have been met:
The provisions of this § 145.98 adopted July 12, 1974, effective July 13, 1974, 4 Pa.B. 1403.