Lawmakers voted to stop the state from requiring that an increasing share of new trucks sold there have zero emissions.

This policy update summarizes the scope, timeline, projected benefits, and other key elements of the Advanced Clean Fleets ...

Pollution muddied clear skies and sickened people across the country. The Clean Air Act helped change that. But the law's future is cloudy. The Nixon-era law is "under attack," said The American ...

But for many significant actions under the Clean Air Act (CAA), it's a different story ... It changes the process, timeline and litigation posture. In short: This isn't just about preserving ...

The House for the first time in over 50 years passed CRA resolutions to undermine California’s Clean Air Act authority to adopt vehicle standards.

A study published by researchers at the University at Albany has presented the first documented evidence that Adirondack ...

Section 108 and 109 of the Clean Air Act require that EPA identify air pollutants utilizing certain criteria and set NAAQS for each. Particulates are one of the six air pollutants currently ...