The US Senate voted today to strip California of its authority to enact state limits on tailpipe pollution that are tougher ...

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

Washington Governor Bob Ferguson's office criticized the Senate decision Thursday to block California’s rule banning the sale ...

California Gov. Gavin Newsom and state Attorney General Rob Bonta announced Thursday plans to file a lawsuit in response to the Senate blocking the state's first-in-the-nation rule banning the sale of ...

(AP) — Congress may stop California from implementing its first-in-the nation rule banning the sale ... to follow some of the state's tailpipe emission standards. But the companies have not ...

The Republican-controlled U.S. House voted Thursday to block California from enforcing first-in-the-nation rules phasing out ... standards to cut tailpipe emissions from medium- and heavy-duty ...

A waiver from the federal government has long allowed California to set its own stricter tailpipe emissions. But now, fuel companies are suing. On Wednesday, the Supreme Court will weigh whether ...

U.S. Supreme Court justices appeared sympathetic on Wednesday to a bid by fuel producers to challenge California's standards for vehicle emissions and electric cars under a federal air pollution law ...

The Republican-controlled U.S. House voted Thursday to block California from enforcing first-in-the-nation rules phasing out ... standards to cut tailpipe emissions from medium- and heavy-duty ...