# Approval and Promulgation of Air Quality Implementation Plans; Indiana
> **Rule** · Direct final rule. · Published 2005-02-28 · Effective 2005-04-29 · 70 FR 9533
## Document
- **Document number:** 05-3677
- **Category:** air-emissions
- **Federal Register citation:** 70 FR 9533
- **CFR reference:** 40 CFR 52
- **Publication date:** 2005-02-28
- **Effective date:** 2005-04-29
- **State:** IN
- **EPA docket:** R05-OAR-2004-IN-0007
## Abstract

The EPA is approving revisions to the particulate matter (PM) and sulfur dioxide (SO<INF>2</INF>) emission requirements for Pfizer, Inc. (Pfizer). Pfizer operates a medicinal chemical manufacturing facility in Vigo County, Indiana. On October 7, 2004, Indiana submitted a request for PM and SO<INF>2</INF> emissions limit revisions as an amendment to its State Implementation Plan (SIP) at the Vigo County facility. Pfizer has removed five boilers from its facility. Indiana has requested the deletion of the site-specific PM and SO<INF>2</INF> emission limits for all five removed boilers. A new boiler has replaced three of the removed boilers. The new boiler is subject to the current New Source Performance Standard limits for PM and SO<INF>2</INF> emissions. There will be no increase in PM or SO<INF>2</INF> emissions as a result of the requested revisions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/02/28/05-3677/approval-and-promulgation-of-air-quality-implementation-plans-indiana)
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