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 ...

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

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

The state’s latest lawsuit charges the administration with illegally targeting its authority to set tougher vehicle-emission ...

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

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

Congress turned back a Biden administration waiver allowing California to ban gas-powered vehicles but legal questions remain.

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

Republicans passed a bill to raise Americans' fuel and health costs by $100s of billions - even though they don't have that power.

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

The Senate, in a first, used a fast-track procedure Thursday to nullify three EPA emissions waivers for California.