Sponsors (18)
The bill centralizes vehicle and nonroad emissions regulation to simplify compliance and create national consistency for industry, at the cost of stripping states of the ability to adopt stricter pollution controls—likely worsening some local air quality and creating legal uncertainty for affected parties.
Vehicle and nonroad equipment manufacturers, interstate fleets, and regulators face a single federal emissions standard instead of differing state regimes, creating uniform nationwide regulatory requirements.
Manufacturers, fleet operators, and fuel suppliers gain simpler, consolidated compliance obligations that reduce administrative complexity and can lower compliance costs across states.
State governments and residents (including California and other states) lose the authority to adopt stricter vehicle and nonroad emission standards, removing a tool used to pursue tougher local air quality and climate goals.
Communities downwind of polluting vehicles and nonroad equipment — often rural or disadvantaged areas — may face higher local air pollution and associated health risks if federal standards are weaker than prior state standards.
States that invested in stricter standards and complementary programs (e.g., California Air Resources Board initiatives) lose regulatory flexibility and the value of prior state investments aimed at improving air quality.
Based on analysis of 3 sections of legislative text.
Removes California's Clean Air Act waiver authority, voids existing waivers, denies pending waivers, and bars states from adopting California vehicle and nonroad engine standards.
Official title: Amend the Clean Air Act to eliminate a waiver under that Act, to eliminate an authorization for States to use new motor vehicle emission and new motor vehicle engine emissions standards identical to standards adopted in California, and for other purposes.
Introduced March 14, 2025 by Mike Lee · Last progress March 14, 2025
Removes the federal statutory authority that lets California obtain waivers to set its own new motor vehicle and engine emission standards and prevents other states from adopting California standards for on-road and nonroad engines and vehicles. It voids existing California waivers, denies pending waiver applications, repeals the clause that lets other states opt into California standards, and makes multiple conforming changes across the Clean Air Act to eliminate references to or reliance on California waiver authority. The change affects federal-state regulatory authority over vehicle emissions, state environmental programs that had relied on California standards, vehicle and equipment manufacturers, and consumers indirectly through potential changes in emissions standards and compliance costs. The bill does not appropriate funds or create new deadlines; it mainly removes legal authorities and cross-references in existing statute.