[Federal Register Volume 72, Number 150 (Monday, August 6, 2007)]
[Proposed Rules]
[Pages 43580-43581]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E7-15119]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R09-OAR-2007-0610; FRL-8448-7]


Revisions to the Arizona State Implementation Plan, Maricopa 
County

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA is proposing to approve revisions to the Maricopa County 
portion of the Arizona State Implementation Plan (SIP). This revision 
concerns reductions of particulate matter (PM) emissions from the 
paving of unpaved road and use of these reductions to satisfy the 
offset requirements under the new source review provisions of the Clean 
Air Act as amended in 1990 (CAA or the Act). We are proposing to 
approve a local rule to assure that the PM emission reductions 
resulting from the road paving meet the criteria for valid offsets 
under the Act.

DATES: Any comments on this proposal must arrive by September 5, 2007.

ADDRESSES: Submit comments, identified by docket number EPA-R09-OAR-
2007-0610, by one of the following methods:
    1. Federal eRulemaking Portal: http://www.regulations.gov. Follow 
the on-line instructions.
    2. E-mail: [email protected]. 
    3. Mail or deliver: Andrew Steckel (Air-4), 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 http://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 http://www.regulations.gov or e-mail. http://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. Electronic files should avoid the use of special characters, 
any form of encryption, and be free of any defects or viruses.
    Docket: The index to the docket for this action is available 
electronically at http://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

[[Page 43581]]

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: Lily Wong, EPA Region IX, (415) 947-
4114, [email protected].

SUPPLEMENTARY INFORMATION: This proposal addresses the following local 
rule: Maricopa County Air Quality Department Rule 242, ``Emission 
Offsets Generated by the Voluntary Paving of Unpaved Roads.'' In the 
Rules and Regulations section of this Federal Register, we are 
approving this local rule in a direct final action 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 action.

    Dated: July 20, 2007.
Keith Takata,
Acting Regional Administrator, Region IX.
 [FR Doc. E7-15119 Filed 8-3-07; 8:45 am]
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