# Approval and Promulgation of Air Quality Implementation Plans; State of Missouri; Control of NOX Emissions From Large Stationary Internal Combustion Engines
> **Rule** · Direct final rule. · Published 2015-09-16 · Effective 2015-11-16 · 80 FR 55545
## Document
- **Document number:** 2015-23178
- **Category:** air-emissions
- **Federal Register citation:** 80 FR 55545
- **CFR reference:** 40 CFR 52
- **Publication date:** 2015-09-16
- **Effective date:** 2015-11-16
- **State:** MO
- **EPA docket:** EPA-R07-OAR-2015-0520
## Abstract

The Environmental Protection Agency (EPA) is taking direct final action to approve revisions to the State Implementation Plan (SIP) for the State of Missouri submitted on October 17, 2013. These revisions remove definitions that were in this rule but have been moved to the state's general definitions rule. The revisions also add text and corrects a wording error found in the rule. EPA's approval of these rule revisions is being done in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2015/09/16/2015-23178/approval-and-promulgation-of-air-quality-implementation-plans-state-of-missouri-control-of-nox)
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