# Approval and Promulgation of Implementation Plans; Indiana
> **Rule** · Direct final rule. · Published 2001-05-31 · Effective 2001-07-30 · 66 FR 29493
## Document
- **Document number:** 01-13502
- **Category:** air-emissions
- **Federal Register citation:** 66 FR 29493
- **CFR reference:** 40 CFR 52
- **Publication date:** 2001-05-31
- **Effective date:** 2001-07-30
- **State:** IN
- **EPA docket:** IN126-1a
## Abstract

The EPA is approving revisions to particulate matter (PM) emissions regulations for Johns Manville Corporation (Johns Manville). This facility is located in Wayne County, Indiana. The Indiana Department of Environmental Management (IDEM) submitted the revised regulations on December 30, 1999 as an amendment to Indiana's State Implementation Plan (SIP). The revisions consist of increasing seven long-term limits, decreasing one short-term limit, removing an emissions source, and changing the company's name. The Johns Manville facility can operate up to 8760 hours annually with these revisions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/05/31/01-13502/approval-and-promulgation-of-implementation-plans-indiana)
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