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 ...

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

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

Gov. Gavin Newsom issued a statement in response to the House vote that targeted California's clean vehicles program, stating ...

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

The company’s turbines — enough to power 280,000 homes — run without emission controls in an area that leads Tennessee in asthma hospitalizations.

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 votes called into question California’s waiver from the Clean Air Act of 1970, an authority that has allowed the state to set stricter pollution guidelines. Republicans in the House ...

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

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