"Seventeen Republican-led states are suing EPA over its decision to restore a waiver that allows California to set tougher tailpipe emissions standards than the federal government.

Led by Ohio Attorney General Dave Yost (R), the group filed suit today in the U.S. Court of Appeals for the District of Columbia Circuit, arguing that California’s Clean Air Act waiver violates the Constitution, which treats all states equally.

California has long set standards stricter than those imposed by the federal government, giving the state outsized power over the nation’s vehicle market. GOP-led states argue the treatment is unfair to their residents."

Lesley Clark and Arianna Skibell report for E&E News May 13, 2022. [2]