EPA is approving a State Implementation Plan (SIP) revision submitted by the State of Texas. This revision, adopted by Texas on November 15, 2006, and submitted to EPA on December 13, 2006, extends requirements to reduce volatile organic compound (VOC) emissions in the Dallas-Fort Worth (DFW) area. Specifically, this revision extends requirements for control of VOC emissions to the five counties that were added to the DFW nonattainment area under the 1997 8-hour ozone standard designation: Ellis, Johnson, Kaufman, Parker, and Rockwall, and the affected VOC sources will be subject to the same emission limitation, control, monitoring, testing, recordkeeping, and recording requirements already in effect in Collin, Dallas, Denton, and Tarrant counties. As a result of this action, these new VOC control requirements will be consistent for all nine counties in the DFW ozone nonattainment area. This revision meets statutory and regulatory requirements, and is consistent with EPA's guidance. EPA is approving this revision pursuant to section 110, 116 and part D of the Federal Clean Air Act (CAA).