California has launched a new legal challenge against the U.S. Environmental Protection Agency, accusing the federal agency of unlawfully placing long-standing state emissions waivers before Congress for possible repeal.
The lawsuit, filed in federal court in Washington, targets the EPA’s decision earlier this month to transmit several California clean-air waivers to lawmakers under the Congressional Review Act. State officials argue that the move attempts to transform regulatory waivers into congressional review items, despite decades of legal precedent treating them differently.
According to California, the federal government is stretching the law beyond recognition in an effort to dismantle environmental policies that have shaped vehicle emissions standards across the country. State Attorney General Rob Bonta said the EPA’s actions threaten to increase pollution, worsen air quality, create uncertainty for manufacturers, and place additional health burdens on communities already exposed to high emission levels.
The dispute centers on four waivers granted to California under the Clean Air Act. Those waivers allow the state to set emissions requirements that are stricter than federal standards for passenger vehicles, heavy-duty trucks, and certain outdoor power equipment. California has long used that authority to push automakers toward cleaner technologies and greater electric vehicle adoption.
Federal regulators approved the current framework of California’s vehicle emissions program in 2022. The rules require manufacturers to steadily increase electric vehicle sales while meeting tougher limits on tailpipe pollution.
The legal battle is the latest chapter in a broader clash between California and the Trump administration over environmental policy. Federal officials have pursued multiple measures aimed at weakening California’s influence over national vehicle standards, while also advancing policies designed to make gasoline-powered vehicles easier to market and purchase.
California’s clean-car strategy extends to a plan that would effectively end sales of new gasoline-only passenger vehicles by 2035. Supporters argue the transition will deliver substantial fuel savings and environmental benefits over time. Critics, including several major automakers, have contended that the requirements are too aggressive and could create significant compliance costs.
The conflict intensified after Congress voted to revoke California’s authority to implement the 2035 phaseout plan, following lobbying efforts by automobile manufacturers seeking relief from the state’s regulations. That action was made possible after the EPA submitted the related waiver to Congress for review, a step that many legal experts and Democratic lawmakers argued exceeded the intended scope of the Congressional Review Act.
California is already contesting that earlier submission in court. The new lawsuit expands the state’s effort to block what it views as an unprecedented attempt to use congressional review powers to dismantle environmental waivers that have historically been granted under the Clean Air Act.
The outcome could have far-reaching implications, not only for California’s climate agenda but also for the ability of future administrations to challenge state environmental programs through Congress.
