# Approval and Promulgation of Air Quality Implementation Plans; Illinois; Midwest Generation Variances
> **Rule** · Final rule. · Published 2015-07-20 · Effective 2015-08-19 · 80 FR 42726
## Document
- **Document number:** 2015-17662
- **Category:** air-emissions
- **Federal Register citation:** 80 FR 42726
- **CFR reference:** 40 CFR 52
- **Publication date:** 2015-07-20
- **Effective date:** 2015-08-19
- **State:** IL
- **EPA docket:** EPA-R05-OAR-2013-0436
## Abstract

The Environmental Protection Agency (EPA) is approving into the Illinois regional haze State Implementation Plan (SIP) variances affecting the following Midwest Generation, LLC facilities: Crawford Generating Station (Cook County), Joliet Generating Station (Will County), Powerton Generating Station (Tazewell County), Waukegan Generating Station (Lake County), and Will County Generating Station (Will County). The Illinois Environmental Protection Agency (IEPA) submitted these variances to EPA for approval on May 16, 2013, and August 18, 2014.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2015/07/20/2015-17662/approval-and-promulgation-of-air-quality-implementation-plans-illinois-midwest-generation-variances)
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