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 ...

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

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

The company has no Clean Air Act permits. In just 11 months since the company arrived in Memphis, xAI has become one of Shelby County’s largest emitters of smog-producing nitrogen oxides ...

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

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

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

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