# Air Plan Approval; Wisconsin; 2017 Revisions to NR 400 and 406
> **Rule** · Final rule. · Published 2018-09-07 · Effective 2018-10-09 · 83 FR 45348
## Document
- **Document number:** 2018-19161
- **Category:** other
- **Federal Register citation:** 83 FR 45348
- **CFR reference:** 40 CFR 52
- **Publication date:** 2018-09-07
- **Effective date:** 2018-10-09
- **State:** WI
- **EPA docket:** EPA-R05-OAR-2017-0280
## Abstract

The Environmental Protection Agency (EPA) is approving certain changes to the Wisconsin State Implementation Plan (SIP). This action relates to changes in Wisconsin's construction permit rules as well as the change in the definition for "emergency electric generators" in NR 400. This request for the revision of the SIP was submitted by the Wisconsin Department of Natural Resources (WDNR) on May 16, 2017.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/09/07/2018-19161/air-plan-approval-wisconsin-2017-revisions-to-nr-400-and-406)
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