36 Pa. Stat. § 2718.108
The secretary shall enter into an agreement with the Secretary of Transportation of the United States, consistent with the provisions of this act and to the degree necessary to preserve the Commonwealth's entitlement to its full share of Federal road funds, and may take action in the name of the Commonwealth to comply with the terms of such agreement. In the event said Secretary of Transportation of the United States or his agent fails to agree, the disagreement shall be resolved with the Attorney General of this Commonwealth participating, and taking such appeals provided for in subsection (1) of section 131 of Title 23, United States Code, as amended, as he deems advisable. The agreement entered into on October 7, 1968, by the then Secretary of Highways with the Federal Highway Administrator, has not been authorized by the General Assembly and is hereby abrogated.
36 P.S. § 2718.108