That lawsuit — the first time API has sued over the tailpipe rules — challenges the agency’s emissions cap for model years 2027 to 2032, which marks the strongest-ever tailpipe clampdown.

A new tailpipe emissions rule set forth by the EPA has been rejected by the House of Representatives in a 215-191 vote.

The House on Friday voted narrowly to repeal clean vehicle rules adopted in March to cut fleetwide tailpipe emissions by 50% over 2026 levels by 2032.

Three coalitions comprised of consumer advocacy groups, manufacturing firms, agricultural interests and marketers will be filing a legal petition to try to halt the EPA's new tailpipe rule.

Scrapping the EPA’s draconian tailpipe-emissions rule will boost competition, benefit consumers, and strengthen national security.

A group of 22 states led by California and four cities are backing the U.S. Environmental Protection Agency's new tailpipe emissions rules after 25 Republican-led states sued last week.

To do so, the rule would cut tailpipe emissions for model year 2026 cars and light-duty trucks by nearly 50%, as well as by 44% for medium-duty trucks, compared to previous standards.

The U.S. Dept. of Transportation’s Federal Highway Administration released a final rule April 18 rescinding requirements that states track tailpipe emissions of greenhouse gases and set goals to ...

The House voted Friday to overturn EPA tailpipe emissions standards that Republicans say amount to a mandate for the purchase of electric vehicles.

He announced later that the agency would reconsider the Biden-era clean power plant rule that seeks to reduce carbon emissions from power plants and roll back greenhouse gas emission standards for ...

The Republican-led U.S. House of Representatives voted to repeal the Biden administration's tailpipe emissions rule on Friday. In March, the Environmental Protection Agency (EPA) issued a rule on ...