Organization | • | Illinois Environmental Protection Agency | [X] |  
  | | 1: |  | Title:   |  |   |  |   | Volume/Number:   | 2011 August 18 |   |  |   | Issuing Agency:   |  |   |  |   | Description:   | This document describes Illinois Maintenance Plan for the Illinois portion of the St. Louis ozone nonattainment area (NAA), hereafter referred to as the Metro-East NAA. A Maintenance Plan is required before an area can be redesignated from nonattainment to attainment of a National Ambient Air Quality Standard (NAAQS). This document provides technical information required to support a request to redesignate the Metro-East NAA to attainment of the 1997 8-hour ozone NAAQS. This revision incorporates motor vehicle emissions estimates developed using the U.S. EPAs MOVES model. |   |  |   | Date Created:   | 09-17-2015 |   |  |   | Agency ID:   | AQPSTR 11-05 |   |  |   | ISL ID:   | 000000056952   Original UID: 177962 FIRST WORD: Maintenance |   |  
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