Senate Majority Leader John Thune and several other top GOP senators Tuesday pledged to vote to nix California's Clean Air Act emissions waiver.

The Republican-majority Senate voted to nullify California's landmark environmental rule that would've banned the sale of new ...

After throwing out the latest auto emissions rules that California set, Wyoming’s congressional delegation and fellow ...

U.S. Senate Republicans on Monday proposed a tax bill that would extend a clean fuel tax credit through 2031, but trim 20% of ...

If enacted, Republicans’ draft legislation would mean that President Biden’s signature climate legislation would effectively ...

Trump signed measures on Thursday revoking waivers for the state’s mandates that clean up car and truck exhaust and ramp up ...

Their votes in Washington, D.C., blocking clean-engine mandates are a “lifeline” for the tow industry, a Riverside operator ...

Trump signed three measures revoking California's waivers for rules that clean up cars and trucks. California and 9 other ...

Reversing California’s emissions power grab is essential to RV, automotive and engine manufacturing industries in the state of Indiana and across America.

Montana passed the state Clean Indoor Air Act, which said indoor public places and workplaces must be smoke-free.