Approval and Promulgation of Air Quality Implementation Plans; Colorado; Revised Definitions; Construction Permit Program Fee Increases; Regulation 3

EPA is approving the two State Implementation Plan (SIP) revision packages submitted by the State of Colorado on August 1, 2007. EPA is approving the August 1, 2007 submittal revisions to Regulation 3, Part A, Section I where the State expanded on the definition of nitrogen dioxide (NO<INF>2</INF>) to include it as a precursor to ozone. An increase in the amount of the fees charged for pollutant emissions and minor wording additions as specified in Regulation 3, Part A, Section VI.D.1 is approved. EPA is also approving one grammatical change the State made to Regulation 3 in the August 1, 2007 submittal. In addition, EPA is taking no action on several revisions to Colorado's Regulation 3 regarding New Source Review (NSR), that are contained in this submittal, where previously proposed, pending, or future actions by EPA have addressed or will address these revisions. EPA is also not acting on three provisions in the submittals that are not in Colorado's SIP and revisions to the State's requirements to file Air Pollution Emission Notices (APENs). This action is being taken under section 110 of the Clean Air Act (CAA).