# Approval and Promulgation of State Implementation Plans; Missouri: Prevention of Significant Deterioration; Greenhouse Gas Tailoring Rule; New Source Review Reform
> **Rule** · Final rule. · Published 2012-04-16 · Effective 2012-05-16 · 77 FR 22500
## Document
- **Document number:** 2012-8920
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 22500
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-04-16
- **Effective date:** 2012-05-16
- **State:** MO
- **EPA docket:** EPA-R07-OAR-2011-0825
## Abstract

EPA is approving revisions to the Missouri State Implementation Plan (SIP) relating to regulation of Greenhouse Gases (GHGs) under Missouri's Prevention of Significant Deterioration (PSD) program, and to other portions of Missouri's New Source Review (NSR) program. The GHG-related SIP revisions are designed to align Missouri's regulations with the GHG emission thresholds established in EPA's "PSD and Title V Greenhouse Gas Tailoring Final Rule," which EPA issued by notice dated June 3, 2010. The other NSR revisions are to the Construction Permits Required Rule and the Emissions Banking and Trading Rule and are intended to address changes to the Federal NSR regulations, which were promulgated by EPA on December 31, 2002 (the NSR Reform rules). In today's action, EPA is approving both the GHG (as it relates to the PSD program) and NSR revisions because the Agency has determined that these SIP revisions, already adopted by Missouri as final effective rules, are in accordance with the Clean Air Act (CAA or Act) and EPA regulations regarding PSD permitting for GHGs and NSR.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/04/16/2012-8920/approval-and-promulgation-of-state-implementation-plans-missouri-prevention-of-significant)
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