Approval and Promulgation of Air Quality Implementation Plans; State of Colorado; Longmont Revised Carbon Monoxide Maintenance Plan

EPA is taking direct final action approving a State Implementation Plan (SIP) revision submitted by the State of Colorado. On April 12, 2004, the Governor of Colorado submitted a revised maintenance plan for the Longmont carbon monoxide (CO) maintenance area for the CO National Ambient Air Quality Standard (NAAQS). The revised maintenance plan contains revised transportation conformity motor vehicle emissions budgets for the years 2010 through 2014 and for 2015 and beyond. In this action, EPA is approving the Longmont CO revised maintenance plan and the revised transportation conformity motor vehicle emissions budgets. This action is being taken under section 110 of the Clean Air Act.