# Approval and Promulgation of Implementation Plan; Indiana
> **Rule** · Direct final rule. · Published 2000-02-23 · Effective 2000-04-24 · 65 FR 8851
## Document
- **Document number:** 00-4045
- **Category:** air-emissions
- **Federal Register citation:** 65 FR 8851
- **CFR reference:** 40 CFR 52
- **Publication date:** 2000-02-23
- **Effective date:** 2000-04-24
- **State:** IN
- **EPA docket:** IN118-1a
## Abstract

EPA is approving revisions to particulate matter (PM) emissions regulations for Indianapolis Power and Light Company (IPL) in Marion County, Indiana, which were submitted by the Indiana Department of Environmental Management (IDEM) on November 22, 1999, as amendments to its State Implementation Plan (SIP). The revisions include relaxation of some PM limits, tightening of other limits, and the elimination of limits for several boilers which are no longer operating. The revisions also include the combination of annual emissions limits for several boilers, and correction of a typographical error in one limit. This SIP revision results in an overall decrease in allowed PM emissions of 52.54 tons per year (tpy).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/02/23/00-4045/approval-and-promulgation-of-implementation-plan-indiana)
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