[Federal Register Volume 63, Number 132 (Friday, July 10, 1998)]
[Proposed Rules]
[Page 37307]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-18421]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[OH 114-1b; FRL-6123-2]


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 (EPA) is 
proposing to approve a March 13, 1998, request from Ohio, for a State 
Implementation Plan maintenance plan revision for the Columbus ozone 
maintenance area. The maintenance plan revision establishes an out year 
of 2010 for the area's emissions budget. The maintenance plan revision 
also allocates to the 2010 mobile source emissions budget a portion of 
the area's safety margin. The 2010 mobile source emissions budget will 
be used for transportation conformity purposes. 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.
    In the final rules section of this Federal Register, EPA is 
approving the State's requests as a direct final rule without prior 
proposal because EPA views this action as noncontroversial and 
anticipates no adverse comments. A detailed rationale for approving the 
State's request is set forth in the direct final rule. The direct final 
rule will become effective without further notice unless the Agency 
receives relevant adverse written comment on the rule. Should the 
Agency receive such comment, it will publish a notice informing the 
public that the direct final rule did not take effect and such public 
comment received will be addressed in a subsequent final rule based on 
this proposed rule. If no adverse written comments are received, the 
direct final rule will take effect on the date stated in that document 
and no further activity will be taken on this proposed rule. EPA does 
not plan to institute a second comment period on this action. Any 
parties interested in commenting on this action should do so at this 
time.

DATES: Written comments on this proposed action must be received by 
August 10, 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 document 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: July 1, 1998.
David A. Ullrich,
Acting Regional Administrator.
[FR Doc. 98-18421 Filed 7-9-98; 8:45 am]
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