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Status of Motor Vehicle Budgets in Submitted State Implementation Plan for Transportation Conformity Purposes; Maricopa County (Phoenix) PM-10 Nonattainment Area, Arizona Notice of Withdrawal of Adequacy of Motor Vehicle Emissions Budget

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Status of Motor Vehicle Budgets in Submitted State Implementation Plan for Transportation Conformity Purposes; Maricopa County (Phoenix) PM-10 Nonattainment Area, Arizona Notice of Withdrawal of Adequacy of Motor Vehicle Emissions Budget

Jared Blumenfeld
February 9, 2011

[Federal Register: February 9, 2011 (Volume 76, Number 27)]
[Notices]               
[Page 7204]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr09fe11-59]                         


[[Page 7204]]

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ENVIRONMENTAL PROTECTION AGENCY

[FRL-9264-2]

 
Status of Motor Vehicle Budgets in Submitted State Implementation 
Plan for Transportation Conformity Purposes; Maricopa County (Phoenix) 
PM-10 Nonattainment Area, Arizona Notice of Withdrawal of Adequacy of 
Motor Vehicle Emissions Budget

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of withdrawal of adequacy.

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SUMMARY: EPA is announcing that it has withdrawn its May 30, 2008 
adequacy finding of the 2010 particulate matter of ten microns or less 
(PM-10) motor vehicle emission budget (MVEB) for the Maricopa County 
(Phoenix) Nonattainment Area. EPA has withdrawn the May 30, 2008 
adequacy finding because the State of Arizona withdrew the state 
implementation plan (SIP) submission containing that MVEB. That SIP 
revision is no longer pending before EPA. On January 31, 2011, EPA sent 
letters to the Arizona Department of Environmental Quality (ADEQ) and 
the Maricopa Association of Governments (MAG) withdrawing the May 30, 
2008 adequacy finding of the 2010 PM-10 MVEB. EPA's withdrawal of its 
May 30, 2008 adequacy finding means that the 2010 PM-10 MVEB is no 
longer available for transportation conformity purposes.

DATES: EPA's withdrawal of the May 30, 2008 adequacy finding was made 
in letters dated January 31, 2011 from EPA Region 9 to ADEQ and MAG. 
This withdrawal of the May 30, 2008 adequacy finding was effective on 
January 31, 2010.

FOR FURTHER INFORMATION CONTACT: Gregory Nudd, U.S. EPA Region 9, 415-
947-4107, nudd.gregory@epa.gov.

SUPPLEMENTARY INFORMATION: Throughout this document, the terms ``we,'' 
``us,'' and ``our'' mean U.S. EPA.

I. Background

    On June 6, 2007, EPA found that the Maricopa County (Phoenix) 
nonattainment area failed to attain the 24-hour PM-10 National Ambient 
Air Quality Standards (NAAQS) by December 31, 2006 (72 FR 31183) as 
required by the area's most recent approved PM-10 SIP submission. This 
2007 finding required the submittal of a new plan meeting the 
requirements of section 189(d) \1\ of the Clean Air Act (CAA), and 
referred to herein as the ``Five Percent Plan,'' by December 31, 2007.
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    \1\ In the case of a serious PM-10 nonattainment area in which 
the PM-10 standard is not attained by the applicable attainment 
date, section 189(d) requires a state to submit a SIP revision that 
provides for attainment of the PM-10 standard and for an annual 
reduction in PM-10 and PM-10 precursor emissions within the area of 
not less than five percent of the amount of such emissions as 
reported in the most recent inventory prepared for such area.
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    On December 21, 2007, the Arizona Department of Environmental 
Quality (ADEQ) submitted the Five Percent Plan intended to address the 
CAA requirements in section 189(d). This Five Percent Plan included a 
PM-10 MVEB of 103.3 metric tons per day (mtpd).
    On March 13, 2008, we announced receipt of the Five Percent Plan on 
the Internet and requested public comment on the adequacy of the motor 
vehicle emissions budget by April 14, 2008. We did not receive any 
comments during the comment period. During that time we reviewed the 
MVEB and determined that it met the adequacy criteria in 40 CFR 
93.118(e)(4) and (5). We sent a letter to ADEQ on May 30, 2008 stating 
that the 2010 motor vehicle PM-10 emissions budget for the Maricopa 
area in the submitted Five Percent Plan was adequate. Our finding was 
published in the Federal Register on June 16, 2008 (73 FR 34013), 
effective on July 1, 2008.
    EPA proposed to partially approve and partially disapprove the Five 
Percent Plan on September 9, 2010 (75 FR 54806). On January 25, 2011, 
prior to any final EPA action, Arizona withdrew the Five Percent Plan 
from the Agency's consideration.
    It is important to note that while EPA had made an adequacy finding 
for this budget, it was never approved as a SIP revision by EPA. Hence, 
there is no SIP rulemaking required to be withdrawn by EPA in regard to 
this MVEB.
    Because the MVEB EPA found adequate on May 30, 2008 was contained 
in the SIP submission that has been withdrawn by the State, that MVEB 
can no longer be considered adequate for transportation conformity 
purposes. EPA, therefore, sent letters on January 31, 2011 to ADEQ and 
MAG withdrawing the May 30, 2008 adequacy finding. Until a new PM-10 
SIP is submitted and the motor vehicle emissions budget(s) in that SIP 
is found adequate or is approved, conformity determinations will be 
made using the budget of 59.7 metric tons per day from the Serious Area 
Plan for PM-10 for the Maricopa County Nonattainment Area which was 
approved by EPA on July 25, 2002 (67 FR 48718).
    EPA has withdrawn its May 30, 2008 adequacy finding without prior 
notice and comment because adequacy findings are not considered 
rulemakings subject to the procedural requirements of the 
Administrative Procedures Act. In addition, EPA does not believe notice 
through EPA's conformity Web site is necessary in advance because the 
withdrawn SIP is no longer pending before EPA for consideration. 
Consequently, further public comment would be unnecessary and not in 
the public interest. By sending the January 28, 2011 letters, EPA has 
also withdrawn all statements and comments previously made regarding 
its May 30, 2008 adequacy finding of the MVEBs budgets for 
transportation conformity purposes.

II. Notice of Withdrawal of MVEB Adequacy Determination

    This is an announcement of EPA's withdrawal of its May 30, 2008 
adequacy finding. EPA withdrew this adequacy finding in letters dated 
January 31, 2011 from Deborah Jordan, Director, Air Division, EPA 
Region 9 to Eric C. Massey, Director, Air Quality Division, ADEQ and 
Dennis Smith, Executive Director, MAG. The effective date of this 
withdrawal is January 28, 2011 based on EPA's transportation conformity 
regulation at 40 CFR 93.118(f)(1)(vi). This announcement will also be 
made on EPA's Web site: http://www.epa.gov/otaq/stateresources/
transconf/index.htm (once there, click on the ``Adequacy Review of SIP 
Submissions'' button and proceed to the Region 9 page for SIP 
submissions that have already been found adequate or inadequate).

    Dated: January 31, 2011.
Jared Blumenfeld,
Regional Administrator, Region IX.
[FR Doc. 2011-2856 Filed 2-8-11; 8:45 am]
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