66 Pa.C.S. § 2604.2

The commission shall be authorized to inspect, audit and investigate any books, records and facilities of the transportation network company and any affiliated entities as necessary to ensure compliance with this chapter. Documents or records marked as confidential will be treated according to the commission's practices and regulations regarding confidential and trade secret information. Information disclosed to the commission under this chapter shall be exempt from disclosure to a third person, including through a request submitted under the act of February 14, 2008 (P.L.6, No.3), known as the Right-to-Know Law.