EPA is taking direct final action to approve a revision to the State Implementation Plan (SIP) submitted by the State of Tennessee on October 19, 2007. The revision affects the Nashville/Davidson County portion of the Tennessee SIP. Specifically, the revision pertains to the Metropolitan Public Health Department, Pollution Control Division's Regulation Number 8, "Inspection and Maintenance of Light-Duty Motor Vehicles." The revision is part of Nashville/Davidson County's strategy to meet the requirements of EPA's 1997 8-hour ozone standard. Regulation Number 8 is amended by reducing the vehicle emission inspection fee to $9.00 and updating the definitions section. This revision is considered by the Tennessee Department of Environment and Conservation (TDEC), to be at least as stringent as the State of Tennessee's preexisting requirements. This action is being taken pursuant to section 110 of the Clean Air Act (CAA).