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 ...

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

Senate Democrats are raising the alarm over the proposed change to the definition of the Endangered Species Act (ESA). A ...

The safeguards closed a loophole by requiring all “major” sources of seven hazardous air pollutants to maximize their emissions reductions.

The joint resolution would eliminate the 'Once In, Always In policy under the Clean Air Act that gets rid of red tape that ...

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

The House took a trio of votes this week targeting California’s decades-old authority to enforce its own environmental standards, setting the stage for a significant standoff in the U.S. Senate.

The House of Representatives voted to block California’s ban on the sale of new gas-powered vehicles, challenging its ...

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

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

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