# Air Plan Approval; Missouri; Clean Data Determination for the 2015 8-Hour Ozone Standard for the St. Louis Nonattainment Area

> **EPA** · Rulemaking · Modified 2026-03-31T12:49:10Z

## Docket
- **Docket ID:** EPA-R07-OAR-2026-0463
- **Agency:** EPA
- **Type:** Rulemaking
- **Last modified:** 2026-03-31T12:49:10Z

## Source
- [regulations.gov docket](https://www.regulations.gov/docket/EPA-R07-OAR-2026-0463)
- [Public comments](https://www.regulations.gov/docket/EPA-R07-OAR-2026-0463/comments)

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