Republican attorneys general from 25 states on Thursday sued the U.S. Environmental Protection Agency to block rules intended to reduce planet-warming emissions from cars and light trucks and ...

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.

California sued Donald Trump's administration Thursday over his move to scrap the state's tailpipe emission rules and its drive to phase out gas-powered cars.

WASHINGTON (Reuters) -A group of 22 states led by California and five cities are backing the U.S. Environmental Protection Agency's new tailpipe emissions rules after 25 Republican-led states sued ...

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.

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

The U.S. Supreme Court over the 2024-2025 term ruled on many so-called "culture wars" issues. Here's a look at those and other top cases.

Trump’s proposed policies aim to end EV incentives, roll back emissions rules, and prioritize battery material production with new tariffs.

President Donald Trump signed a Congressional Review Act resolution Thursday that revokes California’s authority to set tailpipe emissions standards, upending policy in California and 17 other ...

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 ...