Last week, the 3rd Circuit Court of Appeals vacated EPA’s approval of Pennsylvania’s SIP for attaining the 2008 NAAQS for NOx. Specifically, the Court found that EPA’s approval was arbitrary and capricious with respect to...more
The Tenth Circuit Court of Appeals (“10th Circuit”) addressed in a July 24th opinion a challenge to the United States Environmental Protection Agency (“EPA”)approval of a Colorado State Implementation Plan (“SIP”). See...more