# Approval and Promulgation of Implementation Plans; State of Missouri
> **Rule** · Final rule. · Published 2011-07-11 · Effective 2011-08-10 · 76 FR 40619
## Document
- **Document number:** 2011-17253
- **Category:** air-emissions
- **Federal Register citation:** 76 FR 40619
- **CFR reference:** 40 CFR 52
- **Publication date:** 2011-07-11
- **Effective date:** 2011-08-10
- **State:** MO
- **EPA docket:** EPA-R07-OAR-2011-0309
## Abstract

EPA is approving the State Implementation Plan (SIP) submittal from the State of Missouri addressing the requirements of Clean Air Act (CAA or Act) sections 110(a)(1) and (2) to implement, maintain, and enforce the 1997 revisions to the National Ambient Air Quality Standards (NAAQS) for ozone. The rationale for this action is explained in this rule and in more detail in the notice of proposed rulemaking for this action. EPA received no comments on the proposal.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/07/11/2011-17253/approval-and-promulgation-of-implementation-plans-state-of-missouri)
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