# OK047 Oklahoma Revised Certification of Transport Prongs I & 2 SIP Elements for the 2010 Primary SO2 NAAQS under Clean Air Act Section 110(a)(2) submitted to EPA May 28, 2021 (OK-78)

> **EPA** · Rulemaking · Modified 2026-03-16T18:07:35Z

## Docket
- **Docket ID:** EPA-R06-OAR-2025-2270
- **Agency:** EPA
- **Type:** Rulemaking
- **Last modified:** 2026-03-16T18:07:35Z

## Source
- [regulations.gov docket](https://www.regulations.gov/docket/EPA-R06-OAR-2025-2270)
- [Public comments](https://www.regulations.gov/docket/EPA-R06-OAR-2025-2270/comments)

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