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 ...

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

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

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.

This week, the House of Representatives voted to block the state’s ban on the sale of new gas-powered vehicles, challenging ...

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

American Lung Association report found that about 156 million people live in counties plagued by high levels of ozone and ...

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

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

Environmental Protector Agency Administrator Lee Zeldin announced a significant reorganization for the agency.

Missouri's air quality worsened from 2021 to 2023, with wildfires, warmer temperatures and dangerous air pollutants fouling ...

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