EPAProposed Rule
Proposed approval of the Indiana 2008 Ozone Second Maintenance Plan for Cincinnati
EnvironmentHealthcare
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Summary
The EPA is proposing to approve Indiana's plan to keep air quality in the Cincinnati area safe and healthy after it previously met federal clean air standards. This plan helps ensure that the region maintains good air quality going forward, which protects residents from breathing unhealthy air pollution.
Key Points
- 1Indiana submitted a maintenance plan to show how the Cincinnati area will continue to meet federal air quality standards for ozone (a type of air pollution)
- 2This applies to the Cincinnati region, which includes parts of Indiana, Ohio, and Kentucky that share the same air
- 3The plan includes strategies to keep pollution levels low, such as monitoring emissions from vehicles and industries
- 4The EPA is accepting public comments until December 23, 2025, and people can submit their views on whether this plan is adequate
- 5If approved, the plan will guide air quality management in the Cincinnati area for the next several years
Key Dates
Published
November 21, 2025
This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.
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