Approval and Promulgation of Air Quality Implementation Plans; West Virginia; West Virginia's Redesignation Request for the Wheeling, WV-OH 1997 Annual Fine Particulate Matter Nonattainment Area to Attainment and Approval of the Associated Maintenance Plan
EPA is approving a redesignation request and State Implementation Plan (SIP) revision submitted by the State of West Virginia. The West Virginia Department of Environmental Protection (WVDEP) requested that the West Virginia portion of the Wheeling, WV-OH fine particulate matter (PM2.5) nonattainment area (``Wheeling Area'' or ``Area'') be redesignated as attainment for the 1997 annual PM2.5 national ambient air quality standard (NAAQS). In this rulemaking action, EPA is approving the 1997 annual PM2.5 redesignation request for the West Virginia portion of the Area. EPA is also approving the maintenance plan SIP revision that the State submitted in conjunction with its redesignation request. The maintenance plan provides for continued attainment of the 1997 annual PM2.5 NAAQS for 10 years after redesignation of the West Virginia portion of the Area. The maintenance plan includes a comprehensive emissions inventory that EPA is approving in this rulemaking. The maintenance plan also includes an insignificance determination for the onroad motor vehicle contribution of PM2.5, nitrogen oxides (NOX), and sulfur dioxide (SO2) for the West Virginia portion of the Area for purposes of transportation conformity. EPA is also approving West Virginia's insignificance determination for transportation conformity. In addition, EPA is also finding that the Area continues to attain the standard. This rulemaking action approving the 1997 annual PM2.5 NAAQS redesignation request, maintenance plan, comprehensive emissions inventory, and insignificance determination for transportation conformity for the West Virginia portion of the Area is based on EPA's determination that the Area has met the criteria for redesignation to attainment specified in the Clean Air Act (CAA).
Next Generation Risk Assessment: Incorporation of Recent Advances in Molecular, Computational, and Systems Biology [External Review Draft]
EPA is announcing a 45-day public comment period for the draft document titled, ``Next Generation Risk Assessment: Incorporation of Recent Advances in Molecular, Computational, and Systems Biology [External Review Draft]'' (EPA/600/R-13/214A). EPA is also announcing that Eastern Research Group, Inc., an EPA contractor, will select a group of external experts to conduct an external peer review of the draft document. The document was prepared by the National Center for Environmental Assessment within EPA's Office of Research and Development (ORD) as part of the Agency's Chemical Safety for Sustainability Research Program. EPA is releasing this draft document for the purposes of public comment and external peer review. This draft document is not final as described in EPA's information quality guidelines, and it does not represent and should not be construed to represent Agency policy or views. The public comment period and the external peer review are separate processes that provide opportunities for all interested parties to comment on the document. When finalizing the draft document, EPA intends to consider the external peer reviewer's comments and any public comments that EPA receives in accordance with this notice. The draft document and EPA's peer review charge are available via the Internet on the NCEA home page under the Recent Additions and the Data and Publications menus at https://www.epa.gov/ncea.
Approval and Promulgation of Air Quality Implementation Plans; States of Michigan and Minnesota; Regional Haze
In this notice of final rulemaking, EPA is disapproving in part the Michigan and Minnesota regional haze State Implementation Plans (SIPs) for failure to mandate best available retrofit technology (BART) for taconite facilities within these states. This final rule supplements a February 6, 2013, action that established Federal emission limits representing BART for these facilities.
Revisions to the California State Implementation Plan, Antelope Valley Air Quality Management District
EPA is finalizing approval of revisions to the Antelope Valley portion of the California State Implementation Plan (SIP). This action was proposed in the Federal Register on July 26, 2013 and concerns standards for continuous emissions monitoring systems and oxides of sulfur (SOx) emissions. We are approving local rules that regulate continuous emissions monitoring systems and standards for gaseous sulfur emission sources under the Clean Air Act (CAA or the Act).