[Federal Register Volume 66, Number 231 (Friday, November 30, 2001)]
[Proposed Rules]
[Page 59757]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 01-29649]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[IN122-1b; FRL-7107-8]


Approval and Promulgation of Implementation Plans; Indiana

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The EPA is proposing to approve revisions to Indiana's opacity 
rules. The Indiana Department of Environmental Management (IDEM) 
submitted revised opacity rules on October 21, 1999, as a requested 
revision to its State Implementation Plan (SIP). The revisions address 
the provisions of Indiana's opacity rule concerning the startup and 
shutdown of operations, the terminology used in discussing averaging 
periods, time periods for temporary exemptions, alternative opacity 
limits, and conflicts between visible opacity readings and continuous 
opacity monitor data.
    A major new component of this rule is a provision that allows the 
State to incorporate source-specific startup and shutdown provisions 
into federal operating permits for certain utility boilers, as long as 
those provisions fall within a range established in the rule. All of 
the revisions satisfy EPA guidelines.

DATES: The EPA must receive written comments by December 31, 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: (312) 886-6524.

SUPPLEMENTARY INFORMATION: Throughout this document wherever ``we,'' 
``us,'' or ``our'' are used we mean the EPA.

Table of Contents

I. What actions are the EPA taking today?
II. Where can I find more information about this proposal and the 
corresponding direct final rule?

I. What Actions Are the EPA Taking Today?

    The EPA is proposing to approve revisions to Indiana's opacity 
rules. The revisions address the provisions of Indiana's opacity rule 
concerning the startup and shutdown of operations, the terminology used 
in discussing averaging periods, time periods for temporary exemptions, 
alternative opacity limits, and conflicts between visible emission 
readings and COM data.

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.

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Particulate matter, Reporting 
and recordkeeping requirements.

    Dated: November 8, 2001.
Norman Niedergang,
Acting Regional Administrator, Region 5.
[FR Doc. 01-29649 Filed 11-29-01; 8:45 am]
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