# OK042 Oklahoma Regional Haze State Implementation Plan Revision for the Second Planning Period, Submitted to EPA via cover letter dated August 12, 2022 (OK-74)

> **EPA** · Rulemaking · Modified 2026-03-19T19:13:23Z

## Docket
- **Docket ID:** EPA-R06-OAR-2022-0736
- **Agency:** EPA
- **Type:** Rulemaking
- **Last modified:** 2026-03-19T19:13:23Z

## Source
- [regulations.gov docket](https://www.regulations.gov/docket/EPA-R06-OAR-2022-0736)
- [Public comments](https://www.regulations.gov/docket/EPA-R06-OAR-2022-0736/comments)

---

*AI Analytics · CC0 1.0*