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 ...

Sen. Brian Schatz delivered remarks on the Senate floor today standing against S.J. Res 31, a Republican-led resolution that ...

S.J. Res 31, from Sen. John Curtis (R-Utah), would repeal Clean Air Act regulations issued last September as a replacement ...

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

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

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

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.

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

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

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

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