EPA is taking final action to approve a portion of the State Implementation Plan (SIP) submission, submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), to demonstrate that the State meets the prevention of significant deterioration (PSD) related infrastructure requirements of the Clean Air Act (CAA or Act) for the 2008 Lead national ambient air quality standards (NAAQS). The CAA requires that each state adopt and submit a SIP for the implementation, maintenance, and enforcement of each NAAQS promulgated by EPA, which is commonly referred to as an "infrastructure" SIP. TDEC certified that the Tennessee SIP contains provisions that ensure the 2008 Lead NAAQS are implemented, enforced, and maintained in Tennessee (hereafter referred to as "infrastructure submission"). Tennessee provided to EPA an infrastructure submission on October 19, 2009, to address the infrastructure requirements for the 2008 Lead NAAQS, however the subject of this notice is limited to the PSD-related infrastructure elements. All other applicable Tennessee infrastructure elements have been addressed in a separate rulemaking.