Approval and Promulgation of Air Quality Implementation Plans; Wisconsin; NSR Reform Regulations, Rule AM-06-04

EPA is approving certain revisions to Wisconsin's prevention of significant deterioration (PSD) and non-attainment new source review (NANSR) construction permit programs, which Wisconsin submitted on May 25, 2006. The Wisconsin Department of Natural Resources (WDNR) is seeking approval of rule AM-06-04 to implement the NSR Reform provisions that were not vacated by the United States Court of Appeals for the District of Columbia (D.C. Circuit) in New York v. EPA. EPA proposed approval of these rules on April 20, 2007 and received adverse comments. In this action, EPA responds to these comments and announces EPA's final rulemaking action. This action affects major stationary sources in Wisconsin that are subject to or potentially subject to the PSD and NANSR construction permit programs.