2017-26419: Air Plan Approval; Illinois; Redesignation of the Illinois Portion of the St. Louis-St. Charles-Farmington, Missouri-Illinois Area to Attainment of the 2008 Ozone Standard
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The Environmental Protection Agency (EPA) is proposing to find that the St. Louis-St. Charles-Farmington, Missouri-Illinois (MO-IL) area, "the St. Louis area," is attaining the 2008 ozone National Ambient Air Quality Standard (NAAQS or standard) based on 2014-2016 monitoring data. EPA is further proposing to redesignate the Illinois portion of the St. Louis area, "the Metro-East area," to attainment for the 2008 ozone NAAQS because the Metro-East area meets the statutory requirements for redesignation under the Clean Air Act (CAA). (EPA will address the Missouri portion of the St. Louis area in a separate rulemaking action.) The St. Louis area includes Madison, Monroe and St. Clair Counties in Illinois (the Metro-East area), and Franklin, Jefferson, St. Charles, and St. Louis Counties and the City of St. Louis in Missouri. The Illinois Environmental Protection Agency (IEPA) submitted a request to redesignate the Metro-East area on May 8, 2017. EPA is also proposing to approve, as a revision to the Illinois State Implementation Plan (SIP), the State's plan for maintaining the 2008 ozone standard through 2030 in the St. Louis area. Finally, EPA finds adequate and is proposing to approve, as a SIP revision, the State's 2030 volatile organic compound (VOC) and oxides of nitrogen (NO<INF>X</INF>) Motor Vehicle Emission Budgets (MVEBs) for the Metro- East area.
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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