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Adequacy Status of Motor Vehicle Emissions Budgets in Submitted Reasonable Further Progress Plan for San Diego 8-Hour Ozone for Transportation Conformity Purposes; California

American Government Special Collections Reference Desk

American Government

Adequacy Status of Motor Vehicle Emissions Budgets in Submitted Reasonable Further Progress Plan for San Diego 8-Hour Ozone for Transportation Conformity Purposes; California

Alexis Strauss
Environmental Protection Agency
17 November 2017


[Federal Register Volume 82, Number 221 (Friday, November 17, 2017)]
[Notices]
[Pages 54339-54340]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-25020]


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ENVIRONMENTAL PROTECTION AGENCY

[EPA-R09-OAR-2017-0507; FRL-9970-42-Region 9]


Adequacy Status of Motor Vehicle Emissions Budgets in Submitted 
Reasonable Further Progress Plan for San Diego 8-Hour Ozone for 
Transportation Conformity Purposes; California

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of adequacy.

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SUMMARY: The Environmental Protection Agency (EPA or ``Agency'') is 
notifying the public that the Agency has found that the motor vehicle 
emissions budgets (``budgets'') for the Reasonable Further Progress 
(RFP) milestone year 2017 from the ``2008 Eight-Hour Ozone Attainment 
Plan for San Diego County (December 2016)'' (``2016 San Diego Ozone 
Plan'' or ``plan''), are adequate for transportation conformity 
purposes for the 2008 ozone national ambient air quality standards 
(NAAQS). The California Air Resources Board (CARB) submitted the 2016 
San Diego Ozone Plan to the EPA on April 12, 2017, as a revision to the 
California State Implementation Plan (SIP). Upon the effective date of 
this notice of adequacy, the previously-approved budgets for the 1997 
8-hour ozone standards will no longer be applicable for transportation 
conformity purposes, and the San Diego Association of Governments 
(SANDAG) and the U.S. Department of Transportation must use these 
adequate budgets in future transportation conformity determinations.

DATES: This finding is effective December 4, 2017.

FOR FURTHER INFORMATION CONTACT: John Kelly, EPA, Region IX, Air 
Division AIR-2, 75 Hawthorne Street, San

[[Page 54340]]

Francisco, CA 94105-3901; (415) 947-4151 or kelly.johnj@epa.gov.

SUPPLEMENTARY INFORMATION: Throughout this document, whenever ``we,'' 
``us,'' or ``our'' is used, we mean the EPA.
    Today's notice is simply an announcement of a finding that we have 
already made. The EPA sent a letter to CARB on October 19, 2017 stating 
that the motor vehicle emissions budgets in the submitted 2016 San 
Diego Ozone Plan for the RFP milestone year 2017 are adequate for 
transportation conformity purposes.\1\ We announced availability of the 
plan and related budgets on the EPA's transportation conformity Web 
site on July 20, 2017, requesting comments by August 21, 2017. We 
received no comments in response to the adequacy review posting. The 
finding is available at the EPA's conformity Web site: https://www.epa.gov/state-and-local-transportation/state-implementation-plans-sip-submissions-epa-has-found-adequate-or. The adequate motor vehicle 
emissions budgets are provided in the following table:
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    \1\ See letter from Matthew J. Lakin, Acting Director, Air 
Division, EPA Region IX, to Richard Corey, Executive Officer, CARB, 
dated October 19, 2017.

                Adequate Motor Vehicle Emissions Budgets
------------------------------------------------------------------------
                                            Volatile
                                            organic          Nitrogen
              Budget year                  compounds      oxides  (tons
                                           (tons per       per  summer
                                          summer day)          day)
------------------------------------------------------------------------
2017..................................              23               42
------------------------------------------------------------------------

    Transportation conformity is required by Clean Air Act section 
176(c). The EPA's conformity rule requires that transportation plans, 
transportation improvement programs, and transportation projects 
conform to a state's air quality SIP and establishes the criteria and 
procedures for determining whether or not they conform. Conformity to a 
SIP means that transportation activities will not produce new air 
quality violations, worsen existing violations, or delay timely 
attainment of the NAAQS.
    The criteria we use to determine whether a SIP's motor vehicle 
emission budgets are adequate for conformity purposes are outlined in 
40 CFR 93.118(e)(4), promulgated on August 15, 1997.\2\ We have further 
described our process for determining the adequacy of submitted SIP 
budgets in our final rule dated July 1, 2004, and we used the 
information in these resources in making our adequacy determination.\3\ 
Please note that an adequacy review is separate from the EPA's 
completeness review and should not be used to prejudge the EPA's 
ultimate action on the SIP. Even if we find a budget adequate, the SIP 
could later be disapproved.
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    \2\ See 62 FR 43780 (August 15, 1997).
    \3\ See 69 FR 40004 (July 1, 2004).
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    Pursuant to 40 CFR 93.104(e), within 2 years of the effective date 
of this notice, SANDAG and the U.S. Department of Transportation will 
need to demonstrate conformity to the new budgets if the demonstration 
has not already been made.\4\ For demonstrating conformity to the 
budgets in this plan, the on-road motor vehicle emissions from 
implementation of the transportation plan or program should be 
projected consistently with the budgets in this plan, i.e., by taking 
the county's emissions results derived from CARB's EMFAC model (short 
for EMission FACtor) and then rounding the emissions up to the nearest 
ton.
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    \4\ See 73 FR 4419 (January 24, 2008).

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

    Dated: October 25, 2017.
Alexis Strauss,
Acting Regional Administrator, Region IX.
[FR Doc. 2017-25020 Filed 11-16-17; 8:45 am]
 BILLING CODE 6560-50-P

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