# Approval and Promulgation of Air Quality Implementation Plans; Wisconsin; Total Suspended Particulate Matter SIP Revision
> **Rule** · Direct final rule. · Published 2014-01-31 · Effective 2014-04-01 · 79 FR 5291
## Document
- **Document number:** 2014-01900
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 5291
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-01-31
- **Effective date:** 2014-04-01
- **State:** WI
- **EPA docket:** EPA-R05-OAR-2013-0502
## Abstract

The Environmental Protection Agency (EPA) is taking direct final action to approve a revision to the Wisconsin State Implementation Plan (SIP). The SIP revision repeals an obsolete Total Suspended Particulate Matter (TSP) rule to align the State's air quality standards with the current National Ambient Air Quality Standards (NAAQS). This action makes no substantive changes to the SIP and imposes no new requirements.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/01/31/2014-01900/approval-and-promulgation-of-air-quality-implementation-plans-wisconsin-total-suspended-particulate)
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