California has decided to abandon its phase out of diesel trucks and requiring cleaner locomotives because of the incoming ...

WASHINGTON − The Supreme Court on Friday agreed to review whether fuel producers can challenge California's vehicle emissions rules to transition away from gasoline powered cars. What California ...

California regulators say the Trump administration is unlikely to approve the rules and that they have no choice but to ...

Blue states are bracing for a battle with the Trump administration over their authority to limit tailpipe emissions, a showdown that will have major repercussions on the types of cars and trucks sold ...

Former U.S. Rep. Lee Zeldin, R-N.Y., who has been tapped by Trump to Trump to lead the EPA, declined to commit to rolling ...

CARB's decision to back down on a regulatory proposal that would have required trucking companies to gradually add ...

California policymakers and environmentalists view recent Supreme Court actions as a small victory for clean air, but worry about future legal challenges.

The Supreme Court on Friday agreed to hear a challenge brought by ... a 2022 EPA decision that restored California's authority to set its own vehicle emission standards. The agency reinstated ...

Because of cow flatulence and manure pits, California ... tons of carbon emissions by 2046 by supplanting gasoline and diesel with plant and animal waste biofuels, electric vehicles and hydrogen.

The Environmental Protection Agency plans to grant the state the right to set stronger climate rules for cars, SUVs and pickup trucks as soon as next week.