One would ditch tightened limits on mercury and other hazardous pollutants and the other would set emissions standards for ...

WASHINGTON (AP) — The Environmental Protection Agency on Friday set strict emissions standards for heavy-duty trucks, buses and other large vehicles, an action that officials said will help clean up ...

California can continue to set its own nation-leading vehicle emissions standards, a federal court ruled Tuesday — two years after the Biden administration restored the state's authority to do so as ...

The Environmental Protection Agency will move forward with the previous administration’s 2027 heavy-duty engine low NOx ...

The agency says the move will avoid 1 billion tons of greenhouse gas emissions. The Environmental Protection Agency announced its new emissions standards for heavy-duty vehicles on Friday, which the ...

Three coalitions of industry groups are filing multiple lawsuits Thursday against the Environmental Protection Agency over its tailpipe emission standards — joining the mounting legal challenges ...

The Biden administration this week is expected to announce new automobile emissions standards that relax proposed limits for three years but eventually reach the same strict standards proposed by the ...

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

Connecticut is expected to have more electric vehicles on the road in the next decade. But over the past eight months, Republicans, and some Democrats, have tried to back the state out of California’s ...

Mercedes-Benz USA and parent company Daimler AG have agreed to pay $149.6 million to settle allegations the automaker secretly installed devices in hundreds of thousands of vehicles to pass emission ...

Illinois ranks fifth among states in the continental U.S. for health risks from diesel emissions. Credit: Kazimierz Popławski, CC BY-NC 2.0 / Flickr Community members and environmental advocates are ...