[Federal Register Volume 75, Number 198 (Thursday, October 14, 2010)]
[Proposed Rules]
[Pages 63139-63140]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-26019]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R09-OAR-2010-0715; FRL-9214-3]


Approval and Promulgation of Implementation Plans--Maricopa 
County (Phoenix) PM-10 Nonattainment Area; Serious Area Plan for 
Attainment of the 24-Hour PM-10 Standard; Clean Air Act Section 189(d)

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule; extension of comment period.

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SUMMARY: On September 9, 2010 (75 FR 54806), EPA published a proposed 
rule proposing to approve in part and disapprove in part State 
implementation plan (SIP) revisions submitted by the State of Arizona 
to meet, among other requirements, section 189(d) of the Clean Air Act 
(CAA) for the serious Maricopa County (Phoenix) nonattainment area 
(Maricopa area). Specifically, EPA proposed to disapprove provisions of 
the 189(d) plan because they do not meet applicable CAA requirements 
for emissions inventories as well as for attainment, five percent 
annual emission reductions, reasonable further progress and milestones, 
and contingency measures. EPA also proposed to disapprove the 2010 
motor vehicle emission budget in the 189(d) plan as not meeting the 
requirements of CAA section 176(c) and 40 CFR 93.118(e)(4). EPA also 
proposed a limited approval and limited disapproval of State 
regulations for the control of PM-10 from agricultural sources. 
Finally, EPA proposed to approve various provisions of State statutes 
relating to the control of PM-10 emissions in the Maricopa area.
    EPA is extending the comment period on the proposed rule from 
October 12, 2010 to October 20, 2010.

DATES: Any comments must arrive by October 20, 2010.

ADDRESSES: Submit comments, identified by docket number EPA-R09-OAR-
2010-0715, 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: Gregory Nudd (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 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.
    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 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.

[[Page 63140]]


FOR FURTHER INFORMATION CONTACT: Gregory Nudd, U.S. EPA Region 9, 415-
947-4107, [email protected] or http://www.epa.gov/region09/air/actions.

SUPPLEMENTARY INFORMATION: On September 9, 2010 (75 FR 54806), EPA 
published a proposed rule proposing to approve in part and disapprove 
in part State implementation plan (SIP) revisions submitted by the 
State of Arizona to meet the Clean Air Act (CAA) requirements 
applicable to the serious Maricopa County (Phoenix) nonattainment area 
(Maricopa area). These requirements apply to the Maricopa area 
following EPA's June 6, 2007 finding that the area failed to meet its 
December 31, 2006 serious area deadline to attain the national ambient 
air quality standards (NAAQS) for particulate matter of ten microns or 
less (PM-10). Under CAA section 189(d), Arizona was required to submit 
a plan by December 31, 2007 providing for expeditious attainment of the 
PM-10 NAAQS and for an annual emission reduction in PM-10 or PM-10 
precursors of not less than five percent per year until attainment 
(189(d) plan).
    In the Agency's September 9, 2010 proposed rule, EPA proposed to 
disapprove provisions of the 189(d) plan for the Maricopa area because 
they do not meet applicable CAA requirements for emissions inventories 
as well as for attainment, five percent annual emission reductions, 
reasonable further progress and milestones, and contingency measures, 
and to disapprove the 2010 motor vehicle emission budget in the 189(d) 
plan as not meeting the requirements of CAA section 176(c) and 40 CFR 
93.118(e)(4). EPA also proposed a limited approval and limited 
disapproval of State regulations for the control of PM-10 from 
agricultural sources. Finally, EPA proposed to approve various 
provisions of State statutes relating to the control of PM-10 emissions 
in the Maricopa area.
    The September 9, 2010 proposed rule provided a 30-day public 
comment period ending on October 12, 2010. In response to a request for 
an extension of the comment period from Benjamin H. Grumbles, Director, 
Arizona Department of Environmental Quality, and Dennis Smith, 
Executive Director, Maricopa Association of Governments, submitted by 
letter dated October 4, 2010, EPA is extending the comment period to 
October 20, 2010.

    Dated: October 7, 2010.
Jared Blumenfeld,
Regional Administrator, EPA Region IX.
[FR Doc. 2010-26019 Filed 10-13-10; 8:45 am]
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