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 ...

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

Republicans say the U.S. Environmental Protection Agency was wrong to reinstate the state's air pollution lawsuit policy ...

California Governor Newsom rebukes House Republicans' move to challenge the state's vehicle emissions standards.

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

The House on Wednesday voted to axe California’s clean truck rules — defying Congress’s own internal watchdog in doing so.

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

The U.S. EPA said it will fine a Burns Harbor steel mill slag processor $190,000 in a settlement for federal Clean Air Act violations.

Weakening or rolling back longstanding environmental regulations would worsen the problem, the American Lung Association ...

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

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