The party-line vote marked the first time in the 55-year history of the Clean Air Act that Congress has moved to weaken the ...

The Senate voted Thursday to overturn an Environmental Protection Agency rule limiting the seven most hazardous air ...

The House took a trio of votes this week targeting California’s decades-old authority to enforce its own environmental ...

Gov. Gavin Newsom issued a statement in response to the House vote that targeted California's clean vehicles program, stating ...

The joint resolution would eliminate the 'Once In, Always In policy under the Clean Air Act that gets rid of red tape that ...

S.J. Res 31, from Sen. John Curtis (R-Utah), would repeal Clean Air Act regulations issued last September as a replacement ...

Cigar bars are legal in many states, and a supporter representing the hospitality industry said the lack of an exemption here ...

The safeguards closed a loophole by requiring all “major” sources of seven hazardous air pollutants to maximize their emissions reductions.

Lawmakers voted to stop the state from requiring that an increasing share of new trucks sold there have zero emissions.

When it comes to regulating motor vehicle emissions, California has long been different. California was the first state in the nation to ...