Across the United States, the rules for checking tailpipe pollution are quietly shifting, even as climate targets grow more ambitious and electric vehicles grab headlines. States are carving out ...

The complaint filed argues that courts should permanently California from "adopting or enforcing new regulations" in these areas.

Michigan joins 24 states suing the EPA over the repeal of auto emissions rules, a move that could reshape the future ...

Car manufacturers made a choice that they would “rather cheat than comply with the law” over vehicle emissions, the High Court has heard. It comes as around 1.6 million motorists are taking legal ...

New York Attorney General’s office is challenging the EPA repeal of the endangerment finding, which declares greenhouse ...

CHICAGO (CBS) --An Army veteran who is battling cancer was able to get his 30-year-old car fixed so it could pass an emissions test, after a Good Samaritan learned that he couldn't get the part he ...

The US Justice Department sued California Thursday alleging the state violated the Constitution with its regulations limiting ...