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

A group of Republican attorneys general from 25 states have sued the EPA with the ... back on March 20. The new rules aim to reduce nationwide tailpipe emissions by 49 percent over 2026 levels ...

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 ...

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 ...

The original rule, which had been tied ... declining targets for carbon dioxide emissions and require states to measure and report the changes in tailpipe emissions. The Trump administration ...

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

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