United States Supreme Court

Dismissal of an action challenging the Environmental Protection Agency's (EPA) promulgation of greenhouse-gas emission standards for new motor vehicles, which made stationary sources subject to the "Prevention of Significant Deterioration" (PSD) program and Title V of the Clean Air Act on the basis of their potential to emit greenhouse gases, is: 1) reversed in part, where the Clean Air Act neither compels nor permits the EPA to adopt an interpretation of the Act requiring a source to obtain a PSD or Title V permit on the sole basis of its potential greenhouse-gas emissions; but 2) affirmed in part, where the EPA reasonably interpreted the Act to require sources that would need permits based on their emission of conventional pollutants to comply with the "best available control technology" (BACT) requirement for greenhouse gases.

Appellate Information

• Decided 06/23/2014
• Published 06/23/2014

Judges

• SCALIA

Court

• United States Supreme Court

Counsel