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[Federal Register Volume 78, Number 108 (Wednesday, June 5, 2013)]
[Proposed Rules]
[Pages 33784-33785]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-13187]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R04-OAR-2013-0062; FRL-9819-9]

Approval and Promulgation of Implementation Plans; Kentucky: 
Kentucky Portion of Cincinnati-Hamilton, Supplement Motor Vehicle 
Emissions Budget Update

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA is proposing to approve a revision to the Kentucky State 
Implementation Plan (SIP), submitted to EPA on August 9, 2012, by the 
Commonwealth of Kentucky, through the Kentucky Energy and Environment 
Cabinet, Division for Air Quality. Kentucky's August 9, 2012, SIP 
revision includes changes to the maintenance plan for the Kentucky 
portion of the Cincinnati-Hamilton, OH-KY-IN, maintenance area for the 
1997 8-hour ozone national ambient air quality standard (NAAQS). The 
Cincinnati-Hamilton, OH-KY-IN, maintenance area for the 1997 8-hour 
ozone NAAQS includes the counties of Boone, Campbell and Kenton in 
Kentucky (hereafter also referred to as Northern Kentucky); a portion 
of Dearborn County, Indiana; and the entire counties of Butler, 
Clermont, Clinton, Hamilton and Warren in Ohio. Kentucky's August 9, 
2012, SIP revision proposes to update the motor vehicle emissions 
budget using an updated mobile emissions model, the Motor Vehicle 
Emissions Simulator (also known as MOVES2010a), and to increase the 
safety margin allocated to motor vehicle emissions budgets for nitrogen 
oxides and volatile organic compounds for Northern Kentucky to account 
for changes in the emissions model and vehicle miles traveled 
projection model. EPA is proposing to approve this SIP revision because 
the Commonwealth has demonstrated that it is consistent with the Clean 
Air Act.

DATES: Comments must be received on or before July 5, 2013.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R04-
OAR-2013-0062, by one of the following methods:
    1. www.regulations.gov: Follow the on-line instructions for 
submitting comments.
    2. Email: R4-RDS@epa.gov.
    3. Fax: (404) 562-9019.
    4. Mail: EPA-R04-OAR-2013-0062, Regulatory Development Section, Air 
Planning Branch, Air, Pesticides and Toxics Management Division, U.S. 
Environmental Protection Agency, Region 4, 61 Forsyth Street SW., 
Atlanta, Georgia 30303-8960.
    5. Hand Delivery or Courier: Ms. Lynorae Benjamin, Chief, 
Regulatory Development Section, Air Planning Branch, Air, Pesticides 
and Toxics Management Division, U.S. Environmental Protection Agency, 
Region 4, 61 Forsyth Street SW., Atlanta, Georgia 30303-8960. Such 
deliveries are only accepted during the Regional Office's normal hours 
of operation. The Regional Office's official hours of business is 
Monday through Friday, 8:30 to 4:30, excluding federal holidays.
    Please see the direct final rule which is located in the Rules 
section of this Federal Register for detailed instructions on how to 
submit comments.

FOR FURTHER INFORMATION CONTACT: Kelly Sheckler of the Air Quality and 
Transportation Modeling Section, in the Air Planning Branch, Air, 
Pesticides and Toxics Management Division, U.S. Environmental 
Protection Agency, Region 4, 61 Forsyth Street SW., Atlanta, Georgia 
30303-8960. Kelly Sheckler may be reached by phone at (404) 562-9222, 
or via electronic mail at sheckler.kelly@epa.gov.

SUPPLEMENTARY INFORMATION: In the Final Rules Section of this Federal 
Register, EPA is approving the State's SIP revision as a direct final 
rule without prior proposal because the Agency views this as a 
noncontroversial submittal and anticipates no adverse comments. A 
detailed rationale for the approval is set forth in the direct final 
rule. If no adverse comments are received in response to this rule, no 
further activity is contemplated. If EPA receives adverse comments, the 
direct final rule will be withdrawn and all public comments received 
will be addressed in a subsequent final rule based on this proposed 
rule. EPA will not institute a second comment period on this document. 
Any parties

[[Page 33785]]

interested in commenting on this document should do so at this time.
    For additional information see the direct final rule which is 
published in the Rules Section of this Federal Register.

    Dated: May 22, 2013.
A. Stanley Meiburg,
Acting Regional Administrator, Region 4.
[FR Doc. 2013-13187 Filed 6-4-13; 8:45 am]
BILLING CODE 6560-50-P
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