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.

The Supreme Court of Hawaii vacated and remanded the interim instream flow standards set by Hawaii's Commission on Water Resource Management for the Waihe'e River and the Waiehu, 'Iao, and Waikapu streams, collectively referred to as Na Wai 'Eha, or "the four great waters

A district court upheld the U.S. Army Corps of Engineers' decision to issue a CWA §404 permit to a mining company for the construction of a valley fill and sediment pond in conjunction with the Reylas Surface Mine in West Virginia.