"The Supreme Court cleared the way for fuel producers to pursue their lawsuit over California’s vehicle emission rules in a lower court." 

"The Supreme Court ruled in favor of a group of fuel producers, allowing a lawsuit that seeks to block California’s ability to set tighter vehicle emissions standards to move forward.

The justices Friday ruled in a 7-2 decision that the fossil fuel and biofuel companies had shown that federal courts had the power to address their concerns that the state’s ability to set stricter limits than the federal government was unfairly tilting the market against them.

“Based on this Court’s precedents and the evidence in the record, we hold that the fuel producers have standing,” said Justice Brett Kavanaugh, writing the majority opinion for the court. “We therefore reverse the contrary judgment of the U.S. Court of Appeals for the D.C. Circuit and remand for that court to consider the merits of the fuel producers’ legal claims.”"

Lesley Clark and Niina H. Farah report for E&E News June 20, 2025. [2]