https://www.eastbaytimes.com/2021/04/26/biden-administration-announces-plans-to-allow-california-to-set-its-own-vehicle-pollution-rules-again-overturning-trump-policy/

The Biden administration on Monday announced that it intends to restore California’s ability to set its own tough pollution rules for passenger vehicles, a move widely expected to return the state to a national leadership role in reducing emissions of greenhouse gases that are disrupting the Earth’s climate.

The announcement from the U.S. Environmental Protection Agency reverses a 2019 decision from the Trump administration that sought to set uniform nationwide standards. As the nation’s largest auto market, California has the ability to influence rules in other states and nationwide, affecting millions of cars, trucks and SUVs.