Approval and Promulgation of Air Quality Implementation Plan; Alaska

In this action EPA is approving numerous revisions to the State of Alaska State Implementation Plan (SIP). The Commissioner of the Alaska Department of Environmental Conservation (ADEC) submitted two requests to EPA dated May 6, 2005 and June 30, 2006 to revise the Alaska SIP to include certain sections of ADEC's revised air quality regulations. The revisions were submitted in accordance with the requirements of section 110 of the Clean Air Act (hereinafter the Act or CAA). Although EPA is approving most of the submitted revisions, EPA is not approving in this rulemaking a number of submitted rule provisions which are inappropriate for EPA approval.