This subchapter adopts the general conformity rule promulgated by the EPA under section 176(c) of the Clean Air Act (42 U.S.C.A. § 7506(c)) and the regulations codified at 40 CFR Part 93, Subpart B (relating to determining uniformity of general Federal actions to state or Federal implementation plans), with respect to the conformity of general Federal actions to the Commonwealth’s State Implementation Plan.