Environmental Protection Agency June 29, 2018 – Federal Register Recent Federal Regulation Documents

The Environmental Protection Agency (EPA) is proposing to approve a State Implementation Plan (SIP) revision submitted by the State of Tennessee, through the Tennessee Department of Environment and Conservation (TDEC), to EPA on May 12, 2017, for attaining the 2010 1- hour sulfur dioxide (SO2) primary national ambient air quality standard (NAAQS) for the Sullivan County SO2 nonattainment area (hereafter referred to as the ``Sullivan County Area'' or ``Area''). The Sullivan County Area is comprised of a portion of Sullivan County in Tennessee surrounding the Eastman Chemical Company (hereafter referred to as ``Eastman''). This plan (herein called a ``nonattainment plan or SIP'' or ``attainment plan or SIP'') includes Tennessee's attainment demonstration and other elements required under the Clean Air Act (CAA or Act). In addition to an attainment demonstration, the plan addresses the requirement for meeting reasonable further progress (RFP) toward attainment of the NAAQS, reasonably available control measures and reasonably available control technology (RACM/RACT), base-year and projection-year emissions inventories, enforceable emissions limitations and control measures, and contingency measures. EPA proposes to conclude that Tennessee has appropriately demonstrated that the plan's provisions provide for attainment of the 2010 1-hour primary SO2 NAAQS in the Sullivan County Area and that the plan meets the other applicable requirements under the CAA.

The Environmental Protection Agency (EPA) is proposing to approve elements of a State Implementation Plan (SIP) submission from Vermont that addresses the infrastructure requirements of the Clean Air Act (CAA or Act)including the interstate transport provisionsfor the 2012 fine particle (PM2.5) National Ambient Air Quality Standards (NAAQS). The infrastructure requirements are designed to ensure that the structural components of each state's air quality management program are adequate to meet the state's responsibilities under the CAA. This action is being taken under the Clean Air Act.

Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is approving revisions to the Arkansas State Implementation Plan (SIP) minor New Source Review (NSR) program submitted on July 26, 2010, and March 24, 2017, including supplemental information provided on November 30, 2015, May 26, 2016, July 5, 2017, July 27, 2017, and March 16, 2018. Specifically, we are proposing to approve revisions that revise the minor NSR permitting thresholds and de minimis levels, as well as, additional non- substantive revisions contained in those submittals. This final action is consistent with the requirements of section 110 of the CAA.