Approval and Promulgation of Air Quality Implementation Plans; New Mexico; Prevention of Significant Deterioration; Greenhouse Gas Tailoring Rule Revisions

EPA is approving a State Implementation Plan (SIP) revision submitted by the New Mexico Environment Department (NMED) to EPA on December 1, 2010. This SIP revision modifies New Mexico's Prevention of Significant Deterioration (PSD) program to establish appropriate emission thresholds for determining which new stationary sources and modification projects become subject to New Mexico's PSD permitting requirements for their greenhouse gas (GHG) emissions. EPA is fully approving New Mexico's December 1, 2010, PSD SIP revision because the Agency has determined that this PSD SIP revision is in accordance with section 110 and part C of the Federal Clean Air Act and EPA regulations regarding PSD permitting for GHGs.