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 ...

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

EPA data shows three of those refineries are in trouble with federal law. Some even have a history of violating federal ...

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 ...

Critics say the joint efforts are not a coincidence as the restructured agency air program moves to weaken pollution ...

California has agreed to formally repeal much of its controversial Advanced Clean Fleets electric-truck mandate as part of a ...

Congress is one step closer to barring California from enforcing its own emissions standards and banning sales of gas-powered vehicles by 2035. The House passed Joint Resolutions 87, 88, and 89 ...

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

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

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