The Environmental Protection Agency (EPA) is taking a direct final action to approve revisions to the New Mexico State Implementation Plan (SIP) related to the General Definitions section of the New Mexico SIP that were submitted by the State of New Mexico on June 11, 2009. EPA has evaluated the SIP revisions for New Mexico and determined these revisions are consistent with the requirements of the Clean Air Act (Act or CAA). EPA is approving this action under section 110 of the Act.