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Preemption Waivers Clean Air Act

Holland & Knight LLP

Up in the Air: Congress Nullifies Clean Air Act Waivers for California

Holland & Knight LLP on

In the weeks since Holland & Knight previously reported on challenges to California's Clean Air Act (CAA) preemption waivers on April 30, 2025, Congress has taken decisive action. Following the U.S. House of Representatives'...more

Holland & Knight LLP

Up in the Air: Challenges to California's Clean Air Act Preemption Waiver

Holland & Knight LLP on

When it comes to regulating motor vehicle emissions, California has long been different. California was the first state in the nation to enact tailpipe emission standards and as result of its "pioneering" efforts in the...more

Holland & Knight LLP

The Impact of a Trump EPA on California's Mobile Source Rules

Holland & Knight LLP on

Under Clean Air Act (CAA) Section 209(a) (42 U.S.C. § 7543), states are preempted from adopting or enforcing emissions standards for new motor vehicles or new motor vehicle engines. However, because California had adopted its...more

Pillsbury Winthrop Shaw Pittman LLP

EPA-California Legal Showdown Looms Over Authority to Regulate Carbon

Multi-state coalition’s lawsuit challenges Trump EPA withdrawal of California Clean Air Act waiver. EPA formally announced its decision to withdraw California’s 2013 Clean Air Act waiver, which allowed the state to set its...more

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