Court of Appeals for the D.C. Circuit June 19, 2007, No. 05-1446 (Environmental Defense v. Environmental Protection Agency)

lead-opinion

Opinion for the court filed by Circuit Judge HENDERSON.

Concurring opinion filed by Circuit Judge ROGERS.

KAREN LECRAFT HENDERSON, Circuit Judge.

As part of the Clean Air Act (CAA), the Congress created a program entitled “Prevention of Significant Deterioration of Air Quality” (PSD), which is designed to protect air quality in national parks and similar scenic and recreational areas.