EPA approval of Kentucky's plan to keep air quality acceptable in the Louisville area
Official: Air Quality State Implementation Plans; Approvals and Promulgations: Kentucky; Louisville Area Limited Maintenance Plan for the 1997 8-Hour Ozone National Ambient Air Quality Standards
Reading: Kentucky is proposing to maintain compliance with the existing 1997 federal ozone standards through a limited maintenance plan, without changing the stringency of those standards.
The approval became final after the comment period closed on September 18, 2026.
In clear language
The EPA has approved Kentucky's plan to maintain acceptable air quality in the Louisville area under federal ozone standards. This is a limited maintenance plan, meaning the area has met the standard and the plan describes how Kentucky will keep it that way. The approval became final after the comment period closed on September 18, 2026.
How does this affect you?
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Who does this affect?
- Residents and workers in the Louisville, Kentucky metropolitan area who breathe the air
- Kentucky state environmental agencies responsible for monitoring and maintaining air quality
- Businesses in Kentucky subject to air quality regulations and emissions limits
What can you do?
- Monitor local air quality forecasts and take precautions on high-ozone days if you have respiratory concerns
- Support or participate in local initiatives to reduce vehicle emissions and air pollution
Timeline
- Comment period closed: 2026-09-18
- 2026-09-18: Public comment period closed
No New Jersey official has a verified action on this policy yet.
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