2016-31635: Air Plan Approval; Ohio; Redesignation of the Ohio Portion of the Cincinnati-Hamilton, OH-IN-KY Area to Attainment of the 1997 Annual Standard for Fine Particulate Matter
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The Environmental Protection Agency (EPA) is proposing to redesignate the Ohio portion of the Cincinnati-Hamilton, OH-IN-KY, nonattainment area (hereafter, "the Cincinnati-Hamilton area") to attainment for the 1997 fine particulate matter (PM<INF>2.5</INF>) annual national ambient air quality standards (NAAQS or standard). The Ohio portion of the Cincinnati-Hamilton area includes Butler, Clermont, Hamilton, and Warren Counties. Because EPA has determined that the Cincinnati-Hamilton area is attaining the annual PM<INF>2.5</INF> standard, EPA is proposing to redesignate the area to attainment and also proposing several additional related actions. EPA is proposing to approve the Reasonably Available Control Measures (RACM)-Reasonably Available Control Technology (RACT) portion of Ohio's Cincinnati- Hamilton area attainment plan SIP revision as providing adequate RACM/ RACT. EPA is proposing to approve an update to the Ohio state implementation plan (SIP), by updating the state's approved plan for maintaining the 1997 annual PM<INF>2.5</INF> NAAQS through 2027. EPA previously approved the base year emissions inventory for the Cincinnati-Hamilton area, and is proposing to approve Ohio's updated emission inventory which includes emission inventories for volatile organic compounds (VOCs) and ammonia. Ohio's approved maintenance plan submission includes a budget for the mobile source contribution of PM<INF>2.5</INF> and nitrogen oxides (NO<INF>X</INF>) to the Cincinnati-Hamilton Ohio PM<INF>2.5</INF> area for transportation conformity purposes, which EPA is proposing to approve and update. EPA is proposing to take these actions in accordance with the Clean Air Act (CAA) and EPA's implementation rule regarding the 1997 PM<INF>2.5</INF> NAAQS.
The agency’s own summary, as published.
What this changes
Amends 2 parts of the Code of Federal Regulations — the standing rules this notice rewrites.
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