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                    Document headings vary by document type but may contain                    the following:                  
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                -                       the number of the CFR title and the number of each part                      the document amends, proposes to amend, or is directly                      related to                    
                -                       the agency docket number / agency internal file number                    
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###### Environmental Protection Agency

          - 40 CFR Part 52 
          - [IN133-1b; FRL-6990-2] 

# AGENCY:

Environmental Protection Agency (EPA). 

# ACTION:

Proposed rule.

# SUMMARY:

The EPA is proposing to approve revisions to 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 regulations 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 a provision that allows the facility to use landfill gas as an alternate fuel. These requested SIP revisions do not change Rolls-Royce's emissions limits. 

# DATES:

The EPA must receive written comments on this proposed rule by July 12, 2001. 

# ADDRESSES:

You should mail written comments to: J. Elmer Bortzer, Chief, Regulation Development Section, Air Programs Branch (AR-18J), U.S. Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois 60604. 

You may inspect copies of Indiana's submittal at: Regulation Development Section, Air Programs Branch (AR-18J), U.S. Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois 60604. 

# FOR FURTHER INFORMATION CONTACT:

Matt Rau, Environmental Engineer, Regulation Development Section, Air Programs Branch (AR-18J), U.S. Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois 60604, Telephone Number: (312) 886-6524, E-Mail Address: rau.matthew@epa.gov. 

# SUPPLEMENTARY INFORMATION:

Throughout this document wherever “we,” “us,” or “our” are used we mean the EPA.

## Table of Contents 

I. What actions are EPA taking today? 

II. Where can I find more information about this proposal and the corresponding direct final rule? 

### I. What Actions Are EPA Taking Today? 

The EPA is proposing to approve revisions to the particulate matter regulations for Rolls-Royce Allison in Marion County, Indiana. IDEM submitted the revised regulation on August 31, 2000 as amendments to its SIP. 

The revisions are a name change for the company and the addition of landfill gas as an alternate fuel. These SIP revisions result in no increase of particulate matter emissions. 

### II. Where Can I Find More Information About This Proposal and the Corresponding Direct Final Rule? 

                    For additional information see the direct final rule published in the rules section of this                     **Federal Register**                    .                 

Dated: May 9, 2001. 

Norman Neidergang,

Acting Regional Administrator, Region 5.

[FR Doc. 01-14611 Filed 6-11-01; 8:45 am] 

BILLING CODE 6560-50-P