Implementation Impact Reports

Missouri Revised Statues section 640.090, RSMo applies to certain types of plans. These types of plans include plans to address nonattainment areas and plans to address carbon dioxide emissions from existing sources. The statute requires the department to hold a stakeholder meeting for the plan and develop an implementation impact report. In addition to these requirements, the department also holds community engagement and public outreach meetings during the development process for some plans.

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Plans with Implementation Impact Reports

Nonattainment Plans and Implementation Impact Reports

Public Comment Period	MoDNR Action/ Document	EPA Submittal Date
June 26, 2023 to Aug. 3, 2023	St. Louis Moderate Nonattainment Area Plan for the 2015 Ozone Standard Implementation Impact Report-Missouri State Implementation Plan: St. Louis Moderate Nonattainment Area Plan for the 2015 Ozone Standard
Oct. 31 2022 to Dec. 19, 2022	New Madrid County Nonattainment Area Plan 2010 Sulfur Dioxide Standard Implementation Impact Report-Proposed Missouri State Implementation Plan Revision: New Madrid County Sulfur Dioxide Nonattainment Area	May 3, 2023
April 26, 2021 to June 3, 2021	Marginal Nonattainment Area Plan for the Missouri Portion of the St. Louis Nonattainment Area Under the 2015 Ozone Standard Implementation Impact Report-Marginal Nonattainment Area Plan for the Missouri Portion of the St. Louis Nonattainment Area for the 2015 Ozone Standard	Sept. 8, 2021

Stakeholder and Community Engagement Meetings

Stakeholder and Community Engagement Meetings

Meeting Date	Meeting Type	Meeting Topic	Meeting Documents
April 24, 2025	Initial Stakeholder	St. Louis Serious Nonattainment Area Plan	Video Recording, April 24, 2025 St. Louis Ozone Serious Nonattainment Area Plan Public Meeting Agenda, April 24, 2025 Summary of-the St. Louis Ozone Reclassification to Serious Nonattainment St. Louis Ozone Nonattainment Area Reclassification to "Serious" Presentation, April 24, 2025 Serious Ozone Nonattainment New Source Review Permitting Presentation, April 24, 2025
July 18 and 19, 2023	Community Engagement	St. Louis Ozone Moderate Nonattainment Area Plan	Proposed Missouri State Implementation Plan Revision Public Meeting Agenda, July 18 and 19, 2023 St. Louis Nonattainment Area Plan for the 2015 Ozone Standard Presentation, July 2023 Summary of Proposed St. Louis Moderate Nonattainment Area Plan for the 2015 Ozone Standard
Jan. 18, 2023	Initial Stakeholder	St. Louis Ozone Moderate Nonattainment Area Plan	St. Louis Ozone Nonattainment Plan Public Meeting Agenda, Jan. 18, 2023 St. Louis Nonattainment Area Plan for the 2015 Ozone Standard Presentation
Nov. 16 and 17, 2022	Community Engagement	New Madrid County Sulfur Dioxide Nonattainment Area Plan	New Madrid County Sulfur Dioxide Nonattainment Area Plan Public Meeting Agenda, Nov. 16 and 17, 2022 Summary of the New Madrid County Nonattainment Area Plan for the 2010 Sulfur Dioxide Standard New Madrid County Nonattainment Area Plan for the 2010 Sulfur Dioxide Standard Presentation
Nov. 3, 2021	Initial Stakeholder	New Madrid County Sulfur Dioxide Nonattainment Area Plan	New Madrid County Sulfur Dioxide Nonattainment Plan and Implementation Impact Report Public Meeting Agenda, Nov. 3, 2021 New Madrid Nonattainment Area Plan for the 2010 Sulfur Dioxide Standard Presentation
July 29, 2021	Second Stakeholder	St. Louis Marginal Ozone Nonattainment Plan	Air Program Advisory Forum Meeting Agenda, July 29, 2021 Updates to Proposed 2015 Ozone Standard St. Louis Marginal Nonattainment Area Plan Presentation
Dec. 3, 2019	Initial Stakeholder	St. Louis Marginal Ozone Nonattainment Plan	Air Program Advisory Forum Meeting Agenda, Dec. 3, 2019 2015 Ozone Standard St. Louis Marginal Nonattainment Area Plan Presentation