Prohibition on fuel emission standards

(a) Federal preemption Notwithstanding any other law, the Federal Government may not establish, enforce, or maintain fuel emission standard for motor vehicles. (b) State prohibition A State, or political subdivision thereof, may not enforce or maintain any fuel emission standards for motor vehicles. (c) Preemption of standards Any Federal or State law, regulation, or executive order that establishes fuel emissions standards for motor vehicles is hereby nullified and shall have no force or effect.