# Air Plan Approval; Missouri; Restriction of Emissions Credit for Reduced Pollutant Concentrations From the Use of Dispersion Techniques
> **Rule** · Final rule. · Published 2022-05-24 · Effective 2022-06-23 · 87 FR 31430
## Document
- **Document number:** 2022-10993
- **Category:** air-emissions
- **Federal Register citation:** 87 FR 31430
- **CFR reference:** 40 CFR 52
- **Publication date:** 2022-05-24
- **Effective date:** 2022-06-23
- **State:** MO
- **EPA docket:** EPA-R07-OAR-2022-0285
## 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 submitted on January 30, 2020. This final action amends the SIP by approving revisions to a state regulation that limits the use of dispersion techniques to meet ambient air quality standards in the vicinity of major sources of air pollution. These revisions to the state rule are a revised restructured version of the same rule. The revisions are administrative in nature and do not impact the stringency of the SIP or air quality.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/05/24/2022-10993/air-plan-approval-missouri-restriction-of-emissions-credit-for-reduced-pollutant-concentrations-from)
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