# Air Plan Approval; Missouri; Ameren Sioux Sulfur Dioxide Consent Agreement
> **Rule** · Final rule. · Published 2022-11-16 · Effective 2022-12-16 · 87 FR 68634
## Document
- **Document number:** 2022-24789
- **Category:** other
- **Federal Register citation:** 87 FR 68634
- **CFR reference:** 40 CFR 52
- **Publication date:** 2022-11-16
- **Effective date:** 2022-12-16
- **State:** MO
- **EPA docket:** EPA-R07-OAR-2022-0722
## Abstract

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the State Implementation Plan (SIP) for the State of Missouri. This final action will amend the SIP to incorporate an additional sulfur dioxide (SO<INF>2</INF>) emissions limit for the Ameren Missouri (Ameren)--Sioux Energy Center (Sioux). Specifically, the EPA is approving into the SIP an additional SO<INF>2</INF> emissions limit and associated operating restrictions, monitoring, recordkeeping, and reporting (referred to as "MRR"), and testing compliance requirements established in a consent agreement as permanent and enforceable SO<INF>2</INF> control measures.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/11/16/2022-24789/air-plan-approval-missouri-ameren-sioux-sulfur-dioxide-consent-agreement)
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