Depending on where you live in the United States, emissions testing of old cars may or may not even be a thing. There are 28 ...

When the Biden administration set new auto emissions standards, it was a landmark climate move; passenger vehicles currently account for more than a quarter of U.S. greenhouse gas emissions. But ...

A national trade group that promotes ethanol joined its frequent foe — a trade group that promotes oil companies and refineries — this week in challenging new federal regulations that threaten them ...

This year’s top emissions & efficiency stories highlight how the Trump administration has influenced emissions regulations as ...

The GOP-controlled House approved a resolution Friday that would overturn a new Biden administration rule on automobile emissions that Republicans say would force Americans to buy unaffordable ...

The state ended its annual mandatory vehicle inspection process, but a recently filed lawsuit leaves the fate of the program in a judge’s hands.

The EU has softened its 2035 car emissions ban, raising questions about climate targets and the pace of EV adoption. View on ...

Europe’s proposal to end the EV monopoly on new car sales was portrayed as an auto industry win, but as the dust settles, it ...