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Fuel producers can challenge California emission standards in US Supreme Court

Fuel producers can challenge California emission standards in US Supreme Court

The U.S. Supreme Court agreed on Friday that the legal challenge against California's vehicle emission standards and electric cars, under a federal law on air pollution, should not have been dismissed.

In a 7-2 decision, the justices overturned a lower-court's dismissal of a lawsuit filed by a Valero Energy affiliate and groups from the fuel industry. The lower court concluded that plaintiffs did not have the legal standing required to challenge the 2022 U.S. Environmental Protection Agency's decision to allow California to set its own regulation.

The dispute revolved around an exception given to California under former Democratic President Joe Biden’s administration in relation to the national vehicle emissions standards set by the agency pursuant to the landmark Clean Air Act.

California can set regulations that are more stringent than federal standards, even though states and municipalities generally are preempted by the federal government.

The EPA action in 2022 reinstated a California waiver to set its tailpipe emission limits and mandate zero-emission vehicles through 2025. This reverses a decision taken during Republican President Donald Trump’s first administration rescinding this waiver.

Valero Diamond Alternative Energy, along with other groups, challenged the reinstatement California's waiver. They argued that the decision exceeded EPA's authority under the Clean Air Act. It also hurt their bottom line because it lowered demand for liquid fuels.

The U.S. Court of Appeals, District of Columbia Circuit, dismissed the lawsuit in 2024. They found that the challengers lacked standing to make their claims as there was no proof that a decision in their favor would affect auto manufacturer decisions in a manner that could result in fewer combustion and more electric vehicles being sold.

California, the largest state in the United States, has been granted more than 100 Clean Air Act waivers.

In recent years, the Supreme Court has a conservative majority of 6-3 and has a sceptical view towards the broad powers granted to federal regulatory agencies.

The court ruled that the EPA "Good Neighbor Rule" was invalidated in 2024. This rule was designed to reduce ozone emission levels, which could worsen air pollution for neighboring states. The court weakened the EPA’s ability to protect wetlands, and combat water pollution in 2023. In 2022 it limited the EPA's authority to reduce carbon emissions from coal and gas-fired plants under the Clean Air Act.

(source: Reuters)