Traffic backs up on the San Francisco–Oakland Bay Bridge in Oakland, Calif., on Sept. 30, 2025. Justin Sullivan/Getty Images
The Justice and Transportation Departments filed a lawsuit against California on Thursday to stop what they say is an illegal electric vehicle (EV) requirement, alleging that the state is mandating fuel economy standards that federal law places in the exclusive domain of the federal government.
Attorney General Pamela Bondi and Transportation Secretary Sean P. Duffy announced the lawsuit, which was filed for the National Highway Traffic Safety Administration (NHTSA). The suit takes aim at regulations formulated by the California Air Resources Board (CARB), which mandates automakers comply with stricter mileage standards via extensive EV assembly.
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