# Approval and Promulgation of Implementation Plans; Wisconsin
> **Rule** · Direct final rule. · Published 1999-08-16 · Effective 1999-10-15 · 64 FR 44415
## Document
- **Document number:** 99-21000
- **Category:** other
- **Federal Register citation:** 64 FR 44415
- **CFR reference:** 40 CFR 52
- **Publication date:** 1999-08-16
- **Effective date:** 1999-10-15
- **State:** WI
- **EPA docket:** WI91-01-7322a
## Abstract

We are approving a site-specific revision to the Wisconsin sulfur dioxide (SO<INF>2</INF>) State Implementation Plan (SIP) SIP for Murphy Oil located in Superior, Wisconsin. The Wisconsin Department of Natural Resources (WDNR) submitted this SIP revision on February 26, 1999 in response to a request for an alternate SO<INF>2</INF> emission limitation by Murphy Oil. The rationale for the approval and other information are provided in this document.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/08/16/99-21000/approval-and-promulgation-of-implementation-plans-wisconsin)
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