Whenever the shipper specifically requests notification of the actual weight and charges on a shipment, and supplies the carrier with an address or telephone number, the carrier shall comply with the request immediately upon determining the actual weight and charges. The notification shall be made by telephone, first-class mail, fax, e-mail, or in person at the carrier's expense unless the carrier provides in its tariff that the actual cost of the notification shall be collected from the shipper.
52 Pa. Code § 31.131
The provisions of this §31.131 issued under the Public Utility Code, 66 Pa.C.S. § § 501, 1102, 1103, 1501, 1502, 1504, 1506, 1508 and Chapters 23 and 25.