# Air Plan Approval; Missouri; Compliance Monitoring Usage
> **Rule** · Final rule. · Published 2019-09-06 · Effective 2019-10-07 · 84 FR 46892
## Document
- **Document number:** 2019-19072
- **Category:** air-emissions
- **Federal Register citation:** 84 FR 46892
- **CFR reference:** 40 CFR 52
- **Publication date:** 2019-09-06
- **Effective date:** 2019-10-07
- **State:** MO
## Abstract

The Environmental Protection Agency (EPA) is taking final action to approve a Missouri State Implementation Plan (SIP) revision submission received on February 15, 2019. The submission revises a Missouri SIP approved regulation that establishes alternate monitoring methods for certifying compliance and alternate methods to establish whether a violation has occurred at a source. These revisions are administrative in nature and do not impact the stringency of the SIP or air quality. Approval of these revisions will ensure consistency between state and federally-approved rules. The EPA's approval of this rule revision is being done in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/09/06/2019-19072/air-plan-approval-missouri-compliance-monitoring-usage)
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