Approval and Promulgation of Implementation Plans Tennessee; Approval of Revisions to the Tennessee SIP and the Nashville/Davidson County Portion of the Tennessee SIP; Prevention of Significant Deterioration and Nonattainment New Source Review

概要

EPA is taking final action to approve revisions to the Tennessee State Implementation Plan (SIP) submitted by the State of Tennessee on February 23, 2006, and amended on April 16, 2007; and revisions to the Nashville/Davidson County portion of the Tennessee SIP submitted by the State of Tennessee on May 31, 2006. The SIP revisions modify the Tennessee and Nashville/Davidson County Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR) regulations in the Tennessee SIP to address changes to the federal new source review (NSR) regulations, which were promulgated by EPA on December 31, 2002, and reconsidered with minor changes on November 7, 2003 (commonly referred to as the "2002 NSR Reform Rules"). EPA proposed approval of these revisions on July 23, 2007; no comments were received on that proposal. The revisions include provisions for baseline emissions calculations, an actual-to-projected- actual methodology for calculating emissions changes, options for plant-wide applicability limits, and recordkeeping and reporting requirements.