# Approval and Promulgation of Implementation Plans; Indiana
> **Rule** · Direct final rule. · Published 2001-06-12 · Effective 2001-08-13 · 66 FR 31550
## Document
- **Document number:** 01-14610
- **Category:** air-emissions
- **Federal Register citation:** 66 FR 31550
- **CFR reference:** 40 CFR 52
- **Publication date:** 2001-06-12
- **Effective date:** 2001-08-13
- **State:** IN
- **EPA docket:** IN133-1a
## Abstract

The EPA is approving revisions to the particulate matter (PM) regulations for Rolls-Royce Allison (Rolls-Royce), formerly Allison Engine Company. This facility is located in Marion County, Indiana. The Indiana Department of Environmental Management (IDEM) submitted the revised regulation on August 31, 2000 as a requested amendment to its State Implementation Plan (SIP). The revisions consist of a name change for the company and the addition of an alternate fuel. These requested SIP revisions do not change Rolls-Royce's emissions limits.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/06/12/01-14610/approval-and-promulgation-of-implementation-plans-indiana)
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