04-8578. Approval and Promulgation of Air Quality Implementation Plans; Maryland; Revisions to the 2005 ROP Plan for the Cecil County Portion of the Philadelphia-Wilmington-Trenton 1-Hour Ozone Nonattainment Area to Reflect the Use of MOBILE6

AGENCY:

Environmental Protection Agency (EPA).

ACTION:

Proposed rule.

SUMMARY:

EPA proposes to approve State Implementation Plan (SIP) revisions submitted by the State of Maryland. These revisions amend the 2005 rate-of-progress (ROP) plan in the Maryland SIP for the Cecil County portion of the Philadelphia-Wilmington-Trenton nonattainment severe 1-hour ozone nonattainment area (the Philadelphia area). The intent of these revisions is to update Cecil County's 2005 ROP plan's mobile emissions inventories and motor vehicle emissions budgets (MVEBs) to reflect the use of MOBILE6. In the Final Rules section of this Federal Register, EPA is approving the State's SIP submittal as a direct final rule without prior proposal because the Agency views this as a noncontroversial submittal and anticipates no adverse comments. A detailed rationale for the approval is set forth in the direct final rule. If no adverse comments are received in response to this action, no further activity is contemplated. If EPA receives adverse comments, the direct final rule will be withdrawn and all public comments received will be addressed in a subsequent final rule based on this proposed rule. EPA will not institute a second comment period. Any parties interested in commenting on this action should do so at this time.

DATES:

Comments must be received in writing by May 17, 2004.

ADDRESSES:

Submit your comments, identified by MD161-3110 by one of the following methods:

A. Federal eRulemaking Portal: http://www.regulations.gov. Follow the on-line instructions for submitting comments.

B. E-mail: [e-mail].

C. Mail: Larry Budney, Mailcode 3AP23, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103.

D. Hand Delivery: At the previously-listed EPA Region III address. Such deliveries are only accepted during the Docket's normal hours of operation, and special arrangements should be made for deliveries of boxed information.

Instructions: Direct your comments to Docket ID No. MD161-3110. EPA's policy is that all comments received will be included in the public docket without change, including any personal information provided, unless the comment includes information claimed to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through regulations.gov or e-mail. The Federal regulations.gov Web site is an “anonymous access” system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an e-mail comment directly to EPA without going through regulations.gov, your e-mail address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the Internet. If you submit an electronic comment, EPA recommends that you include your name and other contact information in the body of your comment and with any disk or CD-ROM you submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, any form of encryption, and be free of any defects or viruses.

Copies of the documents relevant to this action are available for public inspection during normal business hours at the Air Protection Division, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103; and the Maryland Department of the Environment, 1800 Washington Boulevard, Suite 705, Baltimore, Maryland, 21230.

FOR FURTHER INFORMATION CONTACT:

Larry Budney, [phone], or by e-mail at [e-mail].

SUPPLEMENTARY INFORMATION:

For further information, please see the information provided in the direct final action, with the same title, that is located in the “Rules and Regulations” section of this Federal Register publication.

Dated: April 7, 2004.

Judith M. Katz,

Acting Regional Administrator, Region III.