Air quality implementation plans; approval and promulgation; various States: Ohio,

[Federal Register: July 10, 1998 (Volume 63, Number 132)]

[Proposed Rules]

[Page 37307]

From the Federal Register Online via GPO Access [wais.access.gpo.gov]

[DOCID:fr10jy98-20]

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.

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. 98-18421Filed7-9-98; 8:45 am]

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