Environmental Protection Agency March 13, 2018 – Federal Register Recent Federal Regulation Documents

On January 22, 2018, the State of South Carolina, through the Department of Health and Environmental Control (DHEC), submitted a request for the Environmental Protection Agency (EPA) to redesignate the Greenville-Spartanburg, South Carolina fine particulate matter (PM2.5) unclassifiable area (hereinafter referred to as the ``Greenville Area'' or ``Area'') to unclassifiable/attainment for the 1997 primary and secondary annual PM2.5 national ambient air quality standards (NAAQS). The Greenville Area is comprised of Anderson, Greenville, and Spartanburg Counties in South Carolina. EPA now has sufficient data to determine that the Greenville Area is in attainment of the 1997 primary and secondary annual PM2.5 NAAQS. Therefore, EPA is proposing to approve the State's request and redesignate the Area to unclassifiable/attainment for the 1997 primary and secondary annual PM2.5 NAAQS based upon valid, quality- assured, and certified ambient air monitoring data showing that the PM2.5 monitors in the Area are in compliance with the 1997 primary and secondary annual PM2.5 NAAQS.

The Environmental Protection Agency (EPA) is approving two state implementation plan (SIP) revisions (Revision C16 and Revision I16) formally submitted by the Commonwealth of Virginia (Virginia). The revisions pertain to amendments made to the definition of ``volatile organic compound'' (VOC) in the Virginia Administrative Code to conform with EPA's regulatory definition of VOC. Specifically, these amendments remove the record keeping and reporting requirements for t-butyl acetate (also known as tertiary butyl acetate or TBAC); Chemical Abstracts Service [CAS] number: 540-88-5) and add 1,1,2,2,-Tetrafluoro- 1-(2,2,2-trifluoroethoxy) ethane (also known as HFE-347pcf2; CAS number: 406-78-0) as a compound excluded from the regulatory definition of VOC, which match actions EPA has taken. EPA is approving these revisions to update the definition of VOC in the Virginia SIP in accordance with the requirements of the Clean Air Act (CAA).

The Environmental Protection Agency (EPA) is proposing to approve a portion of a revision to the Hamilton County portion of the Tennessee State Implementation Plan (SIP) submitted by the State of Tennessee through the Tennessee Department of Environment and Conservation from Chattanooga/Hamilton County Air Pollution Control Bureau on June 25, 2008. The revision amends the definition of ``volatile organic compounds'' (VOC) to be consistent with state and federal regulations. This action is being taken pursuant to the Clean Air Act (CAA or Act).