ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 81

[EPA-R03-OAR-2010-0431; FRL- ]

Approval of One-Year Extension for Attaining the 1997 8-Hour Ozone Standard in the 

Baltimore Moderate Nonattainment Area

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

SUMMARY: EPA is proposing to extend the attainment date from June 15, 2010 to June 15, 

2011 for the Baltimore nonattainment area, which is classified as moderate for the 1997 8-hour 

ozone national ambient air quality standard (NAAQS). This extension is based in part on air 

quality data for the 4

th highest daily 8-hour monitored value during the 2009 ozone season. In the 

Final Rules section of this Federal Register, EPA is approving the State's request as a direct final 

rule without prior proposal because the Agency views this as a noncontroversial request 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 If EPA receives adverse comments, the direct final rule will be withdrawn and all 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 [insert date 30 days from date of 

publication.] 
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ADDRESSES: Submit your comments, identified by Docket ID Number EPA-R03-OAR2010-0431 by one of the following methods:

A. www.regulations.gov. Follow the on-line instructions for submitting comments.

B. E-mail: fernandez.cristina@epa.gov.

C. Mail: EPA-R03-OAR-2010-0431, Cristina Fernandez, Associate Director, Office of Air 

Program Planning, Mailcode 3AP30, 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. EPA-R03-OAR-2010-0431. EPA's 

policy is that all comments received will be included in the public docket without change, and 

may be made available online at www.regulations.gov, 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 www.regulations.gov or 

e-mail. The www.regulations.gov website is an Aanonymous 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 

www.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 
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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.

Docket: All documents in the electronic docket are listed in the www.regulations.gov index. 

Although listed in the index, some information is not publicly available, i.e., CBI or other 

information whose disclosure is restricted by statute. Certain other material, such as copyrighted 

material, is not placed on the Internet and will be publicly available only in hard copy form. 

Publicly available docket materials are available either electronically in www.regulations.gov or 

in hard copy during normal business hours at the Air Protection Division, U.S. Environmental 

Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103. Copies of 

the State submittal are available at Maryland Department of the Environment, 1800 Washington 

Boulevard, Suite 705, Baltimore, Maryland 21230.

FOR FURTHER INFORMATION CONTACT: Gregory Becoat, (215) 814-2036, or by email at becoat.gregory@epa.gov.

SUPPLEMENTARY INFORMATION: 

For further information, please see the information provided in the direct final action, with the 
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same title that is located in the ARules and Regulations@ section of this Federal Register

publication. 

__July 6, 2010________ ___________/s/_____________

Dated: W. C. Early, Acting

 Regional Administrator,

 Region III.