California Sues US Environmental Protection Agency (EPA) Over Attempt to Block State’s Tougher Pollution Rules

California has filed a lawsuit against the US Environmental Protection Agency (EPA), accusing the federal government of unlawfully interfering with the state’s authority to enforce its own environmental and vehicle emission standards.

The dispute centers on four Clean Air Act waivers previously granted to California, which allow the state to adopt stricter pollution and greenhouse gas emission regulations than those required under federal law. Last week, the EPA submitted these waivers to Congress for reclassification as “rules” that could be reviewed and potentially overturned under the Congressional Review Act.

California argues that the waivers are not rules but finalized administrative decisions. According to the lawsuit, the EPA is attempting to improperly reclassify them so that Congress and federal agencies can revoke California’s long-standing environmental protections.

The waivers have enabled California to introduce several major environmental programs, including stricter greenhouse gas emission standards for vehicles, the Advanced Clean Cars program, and tougher regulations for small off-road engines.

California Attorney General Rob Bonta criticized the move, stating that both Republican and Democratic administrations have consistently recognized for decades that such waivers are not subject to congressional review. He argued that the federal government’s actions would lead to increased pollution, poorer air quality, and greater health risks for residents.

The lawsuit asks the court to invalidate the EPA’s reclassification decision, prevent further attempts to revoke the waivers, and reaffirm California’s authority to implement stronger environmental standards aimed at protecting public health and reducing pollution.