# Approval and Promulgation of Air Quality Implementation Plans; Wisconsin; Disapproval of PM2.5 Permitting Requirements
> **Rule** · Final rule. · Published 2013-07-25 · Effective 2013-08-26 · 78 FR 44881
## Document
- **Document number:** 2013-17837
- **Category:** air-emissions
- **Federal Register citation:** 78 FR 44881
- **CFR reference:** 40 CFR 52
- **Publication date:** 2013-07-25
- **Effective date:** 2013-08-26
- **State:** WI
- **EPA docket:** EPA-R05-OAR-2011-0502
## Abstract

EPA is taking final action to disapprove a revision to Wisconsin's State Implementation Plan (SIP) submitted by the Wisconsin Department of Natural Resources (WDNR) on May 12, 2011. The revision concerns permitting requirements relating to particulate matter of less than 2.5 micrometers (PM<INF>2.5</INF>). EPA is taking final action to disapprove the revisions because they do not meet the 2008 PM<INF>2.5</INF> SIP requirements. The proposed rulemaking was published December 18, 2012. During the comment period which ended on January 17, 2013, no comments were received.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/07/25/2013-17837/approval-and-promulgation-of-air-quality-implementation-plans-wisconsin-disapproval-of-pm25)
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