52 Pa. Code § 56.22
The provisions of this § 56.22 amended under the Public Utility Code, 66 Pa.C.S. § § 331, 501, 504, 1301, 1305, 1401-1419, 1501 and 1504.
This section cited in 52 Pa. Code § 56.15 (relating to billing information); and 52 Pa. Code § 56.181 (relating to duties of parties; disputing party's duty to pay undisputed portion of bills; public utility's duty to pay interest whenever overpayment found).