# Approval and Promulgation of Air Quality Implementation Plans; Michigan; Oxides of Nitrogen Regulations, Phase II
> **Rule** · Direct final rule. · Published 2008-01-29 · Effective 2008-03-31 · 73 FR 5101
## Document
- **Document number:** E8-1415
- **Category:** air-emissions
- **Federal Register citation:** 73 FR 5101
- **CFR reference:** 40 CFR 52
- **Publication date:** 2008-01-29
- **Effective date:** 2008-03-31
- **State:** MI
- **EPA docket:** EPA-R05-OAR-2007-0024
## Abstract

The EPA is approving Michigan's oxides of nitrogen (NO<INF>X</INF>) rules which satisfy the requirements of EPA's NO<INF>X</INF> SIP Call Phase II Rule (the Phase II Rule). We are approving these regulations based on Michigan's demonstration that they will result in the achievement of the Phase II budget through source compliance with rules affecting stationary internal combustion (IC) engines which are identified in the NO<INF>X</INF> plan submittal. Limiting NO<INF>X</INF> emissions from IC engines will enable the State to meet the Phase II incremental difference of 1,033 tons during the ozone season, thereby improving air quality and protecting the health of Michigan citizens.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/01/29/E8-1415/approval-and-promulgation-of-air-quality-implementation-plans-michigan-oxides-of-nitrogen)
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