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Weekly Cases Update Volume 45, Issue 16

Westar Energy, Inc. v. Environmental Protection Agency

45 ELR 20100
11-1333 (D.C. Cir., May 2015)

The D.C. Circuit denied petitions for review challenging EPA's disapproval of a revision to Kansas' proposed SIP revision for the 2006 fine particulate matter (PM2.5) NAAQS. EPA disapproved the SIP revision because the submission lacked the required technical analysis evaluating whether the...

Approval and revision, §110(a), National ambient air quality standards (NAAQS), §109