A district court dismissed EPA's lawsuit against an Oklahoma utility under the CAA alleging that it failed to properly project whether modifications made to two coal-fired power plants would result in an increase in emissions. The plants were constructed before Congress enacted the PSD program. As a...

The Seventh Circuit denied a petition for review challenging EPA’s decisions to redesignate three geographic areas—Milwaukee-Racine, Greater Chicago, and the Illinois portion of the St. Louis area—as having attained the 1997 NAAQS for ozone. Before redesignating an area, the CAA requires EPA t...

A district court dismissed individuals' CAA citizen suit against an oil company for emission violations at the company's refinery, olefins plant, and chemical plant in Baytown, Texas. It is undisputed the company violated some emission standards or limitations under its Title V permit. Indeed, it is...

The D.C. Circuit held that EPA's regulations implementing the 2008 NAAQS for ozone exceed the Agency’s authority under the CAA. In 2008, EPA revised and strengthened the standards for ozone pursuant to the CAA. One of the revisions extended the deadline for some regions to attain the new standards...