During the early 1970s, the air in many American cities was … brown. Pollution muddied clear skies and sickened people across ...

March 27 (UPI) --The Environmental Protection Agency is allowing entities subject to the Clean Air Act to seek exemptions via email through Monday while the agency reconsiders relevant rules.

The agency posted guidance online that lays out a path for companies to seek exemptions from Clean Air Act regulations, including toxic emissions limits imposed on a range of pollution sources ...

The Trump administration’s attempt to roll back numerous vehicle pollution standards has left states wondering what’s next.

The EPA said in a statement to CBS News that section 112(i)(4) of the Clean Air Act "specifically states that the President may exempt any stationary source 'if the President determines that the ...

Wisconsin’s air quality is actually better than ever recorded, but now the Clean Air Act’s standards call for even greater ...

The Supreme Court appears poised to keep at least some Clean Air Act disputes in federal courts outside of D.C. — preventing what at least one justice described as “home court advantage” for ...

The Environmental Protection Agency (EPA) has set up a portal allowing polluters to request exemptions to nine Clean Air Act rules. The Clean Air Act allows the president to exempt polluters from ...