# Approval and Promulgation of Implementation Plans; Wisconsin; Nitrogen Oxide Combustion Turbine Alternative Control Requirements for the Milwaukee-Racine Former Nonattainment Area
> **Rule** · Direct final rule. · Published 2014-04-30 · Effective 2014-06-30 · 79 FR 24337
## Document
- **Document number:** 2014-09724
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 24337
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-04-30
- **Effective date:** 2014-06-30
- **State:** WI
- **EPA docket:** EPA-R05-OAR-2014-0206
## Abstract

On February 24, 2014, the Wisconsin Department of Natural Resources (WDNR) submitted revisions to its nitrogen oxide (NO<INF>X</INF>) combustion turbine rule for the Milwaukee-Racine former nonattainment area. This revision is contained in "2013 Wisconsin Act 91--Senate Bill 371" which allows alternative NO<INF>X</INF> emission requirements for simple cycle combustion turbines that undergo a modification on or after February 1, 2001, if dry low NO<INF>X</INF> combustion is not technically or economically feasible. This revision is approvable because it provides for alternative NO<INF>X</INF> requirements subject to Environmental Protection Agency (EPA) approval on a case-by-case basis and therefore satisfies the reasonably available control technology (RACT) requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/04/30/2014-09724/approval-and-promulgation-of-implementation-plans-wisconsin-nitrogen-oxide-combustion-turbine)
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