California, your days driving U.S. emissions policy are numbered.

That's the message behind House Bill H.R. 4117 , the Fuel Emissions Freedom Act — and it's shaking up the automotive world.

Even if it clears Congress, lawsuits are certain. California has never been shy about using the courts to defend its regulatory turf.

First introduced on June 24, 2025, and now under review by the House Committee on Energy and Commerce, the legislation seeks to repeal federal and state motor vehicle emission and fuel economy standards under the Clean Air Act and related laws.

Its stated goals? Lower costs for consumers, simplify compliance for automakers, and revive U.S. competitiveness. But behind the legal jargon lies a direct challenge to one of the most powerful forces in U.S. auto regulation:

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