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 ...

Congress is one step closer to barring California from enforcing its own emissions standards and banning sales of gas-powered ...

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 ...

The legal clash between Greenidge Generation and New York’s Department of Environmental Conservation will continue with a ...

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.

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

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

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

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