The Senate on Thursday passed joint resolutions formally disapproving of California's Advanced Clean Trucks and Omnibus ...

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

The U.S. Senate on Thursday voted to bar California's landmark plan to end the sale of gasoline-only vehicles by 2035 that ...

The U.S. Senate is moving forward with an effort to block California's nation-leading standards for vehicle emissions.

Senate Republicans have voted to establish a new precedent that will allow them to roll back clean air standards in ...