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On Public Notice | Proposed for Adoption

On Public Notice

Missouri State Implementation Plan Revision – Marginal Nonattainment Area Plan for the Missouri Portion of the St. Louis Nonattainment Area Under the 2015 Ozone Standard

The purpose of this state implementation plan revision is to address the emissions inventory and other marginal ozone nonattainment area requirements pursuant to Clean Air Act Section 182(a) for the Missouri portion of the St. Louis nonattainment area under the 2015 ozone standard.  The Missouri portion of the St. Louis nonattainment area includes the City of St. Louis and the counties of St. Louis and St. Charles, and Boles Township in Franklin County. EPA designated this area as a marginal nonattainment area under the 2015 ozone standard on June 4, 2018.

In accordance with RSMo Section 640.090, the department has prepared an implementation impact report to accompany this nonattainment area plan. A link to this report is listed below.

Marginal Nonattainment Area Plan for the Missouri Portion of the St. Louis Nonattainment Area Under the 2015 Ozone Standard

Appendices A-C

Implementation Impact Report

The Missouri Air Conservation Commission will hold a public hearing to hear testimony on this proposed plan and report on May 27, 2021. The department will accept written comments on the proposed plan and report through 5 p.m. on June 3, 2021.

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Proposed for Adoption

None at this time.