This resolution disapproves a rule from the Environmental Protection Agency that allows California to enforce stricter pollution standards for vehicles.
This joint resolution nullifies the Environmental Protection Agency notice titled California State Motor Vehicle and Engine Pollution Control Standards; Advanced Clean Cars II; Waiver of Preemption; Notice of Decision (90 Fed. Reg. 642) and published on January 6, 2025. Among other elements, the notice grants the California Air Resources Board request for a waiver for its Advanced Clean Cars II (ACC II) regulations. (Under the Clean Air Act, California may seek waivers of the preemption prohibiting states from enacting certain emission standards.)