Approval and Promulgation of Air Quality Implementation Plans; State of Colorado; Motor Vehicle Inspection and Maintenance Program-Deletion of Final Enhanced Inspection and Maintenance Emission Cutpoint Standards

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EPA is approving a State Implementation Plan (SIP) revision that was submitted by the State of Colorado on August 8, 2006. The August 8, 2006, revision updates Regulation Number 11, "Motor Vehicle Emissions Inspection Program," by removing the light duty vehicle emission testing limits that went into effect on January 1, 2006, for 1996 and newer model year vehicles. This action is being taken under section 110 of the Clean Air Act.