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 U.S. Environmental Protection Agency is taking aim at another California emissions law specific to the trucking industry, the latest in a crusade the agency has launched against the state’s ...

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 ...

The U.S. Environmental Protection Agency’s recent proposal to repeal its own 2009 finding that greenhouse gas emissions endanger public health marks a major U-turn for the nation’s climate progress.

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 ...

Documents supporting the EPA’s plan to roll back vehicle emission standards reference California by name nearly 30 times. For more than 50 years, California has had special authority from the EPA to ...