But the agency will allow California to require trucks registered in the state to be subject to an inspection and maintenance program aimed at curbing smog. EPA on Monday proposed allowing California ...

California regulators and solar industry stakeholders are denouncing the U.S. Environmental Protection Agency's decision to eliminate the Solar for All grant program, designed to bring solar energy to ...

The Environmental Protection Agency has moved to block a California regulation aimed at reducing emissions from diesel trucks, arguing that it serves as a backdoor emission rule that would be imposed ...

President Donald Trump and Republicans in the House and Senate on Thursday finally ended California’s outsized authority to dictate national emissions standards for new cars, trucks, RVs and engines.