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SIP disapproval

85 FR 22381

ELR Federal Agency Update

Arizona v. U.S. Environmental Protection Agency

ELR Case

The Ninth Circuit held that EPA did not act arbitrarily and capriciously when it disapproved in part Arizona's regional haze SIP and issued a replacement federal implementation plan (FIP) in place of the disapproved SIP elements. First...

80 FR 54468

ELR Federal Agency Update

Westar Energy, Inc. v. Environmental Protection Agency

ELR Case

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...

Texas v. United States Environmental Protection Agency

ELR Case

The Fifth Circuit vacated EPA's disapproval of Texas's flexible permit program under the CAA. Texas submitted the program to EPA as a revision to its SIP and as a new feature of the state's minor new source review (NSR) regime. Under...