[Federal Register Volume 63, Number 5 (Thursday, January 8, 1998)]
[Proposed Rules]
[Page 1091]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-432]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[OH111-1b; FRL-5947-9]


Approval and Promulgation of Maintenance Plan Revision; Ohio

AGENCY: Environmental Protection Agency.

ACTION: Proposed rule.

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SUMMARY: The United States Environmental Protection Agency is proposing 
to approve a October 20, 1997, request from Ohio, for a State 
Implementation Plan maintenance plan revision for the Jefferson County 
ozone maintenance area. The maintenance plan revision allocates to the 
mobile source emissions budget for transportation conformity a portion 
of the existing safety margin. The safety margin is the difference 
between the attainment inventory level of the total emissions and the 
projected levels of the total emissions in the final year of the 
maintenance plan.

DATES: Written comments on this proposed action must be received by 
February 9, 1998.

ADDRESSES: Written comments should be sent 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.

FOR FURTHER INFORMATION CONTACT: Scott Hamilton, Environmental 
Scientist, Regulation Development Section, Air Programs Branch (AR-
18J), U.S. Environmental Protection Agency, Region 5, 77 West Jackson 
Boulevard, Chicago, Illinois 60604, (312) 353-4775.

SUPPLEMENTARY INFORMATION: For additional information, see the Direct 
Final rule which is located in the Rules section of this Federal 
Register. Copies of the requests are available for inspection at the 
following address: (Please contact Scott Hamilton at (312) 353-4775 
before visiting the Region 5 office.) USEPA Region 5, Air and Radiation 
Division, 77 West Jackson Boulevard, Chicago, Illinois 60604-3590.

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Hydrocarbons, 
Intergovernmental relations, Ozone, Nitrogen oxides, Transportation 
conformity.

    Authority: 42 U.S.C. 7401 et seq.

    Dated: December 24, 1997.
David A. Ullrich,
Acting Regional Administrator, Region V.
[FR Doc. 98-432 Filed 1-7-98; 8:45 am]
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