The Fifth Circuit vacated EPA's disapproval of three Texas regulations that provide for a standardized permit for minor new source review (NSR) pollution control projects that reduce or maintain current emissions rates. EPA had no legal basis on which to disapprove the permit. EPA used Texas law...

The D.C. Circuit upheld EPA's rule designating certain areas in Utah as nonattainment for the 2006 24-hour fine particulate matter (PM2.5) standard. Petitioners—two counties, three cities, and an aerospace and defense company—challenged the inclusion of parts of Tooele and Box Elder Counties wit...

A district court partially dismissed EPA's lawsuit against an energy company for violating the CAA when it allegedly undertook major modifications at a coal-fired power plant in Festus, Missouri. EPA alleged that the company violated the Missouri SIP, the terms of its Title V permit, and the CAA...