A district court dismissed an individual's CAA lawsuit against a Colorado utility and the state's environmental agency in which he alleged that toxic fumes were emitted into his neighborhood following a fire at a nearby power plant. The plaintiff lacks standing to file suit. Although he claims that ...

The D.C. Circuit upheld EPA’s decision to defer adopting new secondary NAAQS for oxides of sulfur (SOx) and nitrogen (NOx) pending further scientific study. Citing doubts about the accuracy of its aquatic acidification index model—used to quantify the connection between SOx and NOx in the air an...

The D.C. Circuit upheld EPA’s decision denying environmental groups’ request to add coal mines to the regulated list of stationary source categories under the CAA. In denying the groups’ petition for rulemaking, EPA made it clear that the denial was not a determination as to whether coal ...

The D.C. Circuit denied industry groups' petition for review challenging EPA's 2013 primary NAAQS for fine particulate matter. In the final rule, EPA lowered the level of the particulate matter NAAQS from 15.0 μg/m3 to 12.0 μg/m3, a level slightly lower than the lowest concentrations reported as c...

The D.C. Circuit upheld EPA's renewable fuels standard (RFS) for 2013. Because EPA reduced the cellulosic ethanol blending requirement for 2013 but not the total renewable fuel volume, petroleum refiners filed suit arguing the rule should be vacated. The court disagreed. The CAA provides that if EPA...