Approval and Promulgation of Implementation Plans; Tennessee; Regional Haze State Implementation Plan; Best Available Retrofit Technology Requirements for Eastman Chemical Company

EPA is finalizing approval of the Best Available Retrofit Technology (BART) requirements for the Eastman Chemical Company (Eastman) that were provided in a revision to the Tennessee State Implementation Plan (SIP) submitted by the State of Tennessee, through the Tennessee Department Environment and Conservation (TDEC), on April 4, 2008, as later modified and supplemented on May 14, 2012, and May 25, 2012. EPA previously proposed action on the BART requirements for Eastman in association with action on Tennessee's April 4, 2008, regional haze SIP revision. On April 24, 2012, EPA took final action on all aspects of the April 4, 2008, SIP revision to address regional haze in the State's and other states' Class I areas except for the BART requirements for Eastman. The May 14, 2012, SIP revision (as clarified in a May 25, 2012, SIP revision) changed the compliance date for the Eastman BART determination included in Tennessee's April 4, 2008, SIP revision and provided a BART alternative determination option for Eastman. EPA is finalizing approval of the BART requirements for Eastman, as provided in Tennessee's April 4, 2008, May 14, 2012, and May 25, 2012, SIP revisions because these SIP revisions are consistent with the regional haze provisions of the Clean Air Act (CAA) and EPA's regulations.