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                    Document headings vary by document type but may contain                    the following:                  
                -                       the agency or agencies that issued and signed a document                    
                -                       the number of the CFR title and the number of each part                      the document amends, proposes to amend, or is directly                      related to                    
                -                       the agency docket number / agency internal file number                    
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###### Environmental Protection Agency

          - 40 CFR Parts 52 and 81 
          - [EPA-R09-OAR-2006-0580; FRL-8270-4] 

# AGENCY:

Environmental Protection Agency (EPA). 

# ACTION:

Proposed rule.

# SUMMARY:

                        EPA is proposing to approve the maintenance plan for the Miami Area in Gila County, Arizona, as a revision to the Arizona state implementation plan; to grant the request submitted by the State to redesignate this area from nonattainment to attainment of the national ambient air quality standards for sulfur dioxide (SO2); and to correct the boundary for the Miami SO2                         nonattainment area. EPA is proposing this action in accordance with the Clean Air Act.                     

# DATES:

Any comments on this proposal must arrive by February 23, 2007. 

# ADDRESSES:

Submit comments, identified by docket number EPA-R09-OAR-2006-0580, by one of the following methods: 

                        1.                         *Federal eRulemaking Portal: www.regulations.gov*. Follow the online instructions.                     

                        2.                         *E-mail: vagenas.ginger@epa.gov*.                     

                        3.                         *Mail or deliver:*                         Ginger Vagenas (Air-2), U.S. Environmental Protection Agency Region IX, 75 Hawthorne Street, San Francisco, CA 94105-3901.                     

*Instructions:*                         All comments 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 Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Information that you consider CBI or otherwise protected should be clearly identified as such and should not be submitted through                         *www.regulations.gov*                         or e-mail.                         *www.regulations.gov*                         is an “anonymous access” system, and EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send e-mail directly to EPA, your e-mail address will be automatically captured and included as part of the public comment. 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.                     

*Docket:*                         The index to the docket for this action is available electronically at                         *www.regulations.gov*                         and in hard copy at EPA Region IX, 75 Hawthorne Street, San Francisco, California. While all documents in the docket are listed in the index, some information may be publicly available only at the hard copy location (e.g., copyrighted material), and some may not be publicly available in either location (e.g., CBI). To inspect the hard copy materials, please schedule an appointment during normal business hours with the contact listed in the                         **FOR FURTHER INFORMATION CONTACT**                         section.                     

# FOR FURTHER INFORMATION CONTACT:

                        Ginger Vagenas, EPA Region IX, (415) 972-3964,                         *vagenas.ginger@epa.gov*.                     

# SUPPLEMENTARY INFORMATION:

                    In the Rules and Regulations section of this                     **Federal Register**                    , we are taking direct final action to approve the maintenance plan for the Miami SO2                     nonattainment area and to approve the State of Arizona's request to redesignate the Miami area from nonattainment to attainment. We are also taking direct final action to correct the boundary of the Miami SO2                     nonattainment area. We are taking these actions without prior proposal because we believe these SIP revisions are not controversial. If we receive adverse comments, however, we will publish a timely withdrawal of the direct final rule and address the comments in subsequent action based on this proposed rule.                 

                    We do not plan to open a second comment period, so anyone interested in commenting should do so at this time. If we do not receive adverse comments, no further activity is planned. For further information, please see the direct final rule in this                     **Federal Register**                    .                 

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

Dated: December 22, 2006. 

Sally Seymour, 

Acting Regional Administrator, Region IX.

[FR Doc. E7-995 Filed 1-23-07; 8:45 am] 

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