EPA, California Advance Multiple Air Act Waivers As High Court Test Looms

January 8, 2024
California and EPA officials are advancing multiple Clean Air Act (CAA) preemption waivers allowing the state to implement tougher emissions standards for locomotives, harbor craft and passenger vehicles, amid speculation that the conservative Supreme Court could weigh challenges to waivers that have already been approved for trucks and cars. The ongoing litigation pursued by Republican-led states and liquid fuel groups -- which has not yet reached the high court -- could create significant hurdles for future California mobile source programs...

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