An applicant for a motor carrier certificate or permit for the transportation of passengers or household goods in use, though not required to offer testimony as to the rates proposed to be charged, may do so if it is otherwise competent. The weight to be attributed to the evidence will depend upon the extent to which it is accompanied by cost evidence demonstrating that the prospective rates would be compensatory, that is, that the prospective rates would be adequate to enable the applicant to recover its costs and realize a reasonable return either on investment or under operating ratio standards. The demeanor and credibility of a witness offering the evidence will also be considered in evaluating the weight to be attributed to the evidence.
52 Pa. Code § 3.382
The provisions of this §3.382 amended under the Public Utility Code, 66 Pa.C.S. § § 501, 1102, 1103 and 1501.