An Act providing for the abrogation of regulations relating to the Pennsylvania Heavy-Duty Diesel Emissions Control Program and for the applicability of Federal standards.

HB 1595 removes Pennsylvania's state-specific regulations for heavy-duty diesel vehicle emissions (25 Pa. Code Ch. 126 Subch. E) and replaces them with federal standards. It directly affects heavy-duty diesel vehicle owners, operators, and manufacturers in Pennsylvania who previously had to comply with the state's emissions control program. The bill's key mechanism is the immediate abrogation of Pennsylvania's program, making federal emissions standards the only applicable requirement for these vehicles in the state. The law takes effect immediately upon enactment.