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 draft, the third advanced by EPA under the new administration, sets new mandates. The first two aimed to repeal existing ...

Court documents show that CARB intends to repeal the ACF regulations related to so-called "high-priority" fleets and drayage ...

If also passed by the House as expected, the action will be the first time Congress has weakened protections under the Clean ...

U.S. Steel has applied for two-year exemptions from hazardous air pollutant rules for integrated iron and steel, coke and ...

Utah counties are struggling when it comes to clean air, according to a new report from the American Lung Association and ...

Wyoming’s senior U.S. senator is a critic of red tape across the whole federal government. Now he and GOP colleagues are ...

From Acadia to Zion, there are health concerns across the National Park System tied to poor air quality conditions that the ...

After withdrawing its EPA waiver request in January for the ACF rule, CARB has now indicated its intent to officially repeal ...

Colorado is now in severe violation of two federal ozone pollution standards, and it must find a way to reduce that pollution ...

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