Common carriers are prohibited from marking, painting or designing their vehicles so as to simulate vehicles operated by other carriers within the same local area. The simulation of design or other act intended to invite patronage by deception will be considered sufficient ground for revocation of certificates.
52 Pa. Code § 29.103
This section cited in 52 Pa. Code § 29.111 (relating to accounts, records and memoranda); and 52 Pa. Code § 30.31 (relating to vehicle equipment requirements).