[Federal Register Volume 70, Number 183 (Thursday, September 22, 2005)]
[Proposed Rules]
[Page 55613]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-18960]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[R04-OAR-2005-KY-0001-200521(b); FRL-7973-1]


Approval and Promulgation of Implementation Plans and Designation 
of Areas for Air Quality Planning Purposes; Kentucky; Redesignation of 
the Christian County, Kentucky Portion of the Clarksville-Hopkinsville 
8-Hour Ozone Nonattainment Area to Attainment for Ozone

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: On March 21, 2005, the Commonwealth of Kentucky, through the 
Kentucky Division for Air Quality (KDAQ), submitted a request for 
parallel processing and on May 20, 2005, submitted a final request: To 
redesignate the Christian County, Kentucky portion of the Clarksville-
Hopkinsville 8-hour ozone nonattainment area to attainment for the 8-
hour ozone National Ambient Air Quality Standard (NAAQS); and for EPA 
approval of a Kentucky State Implementation Plan (SIP) revision 
containing a 12-year maintenance plan for Christian County, Kentucky. 
The interstate Clarksville-Hopkinsville 8-hour ozone nonattainment area 
is comprised of two counties (i.e., Christian County, Kentucky and 
Montgomery County, Tennessee). EPA is proposing to approve the 8-hour 
ozone redesignation request for the Christian County, Kentucky portion 
of the Clarksville-Hopkinsville 8-hour ozone nonattainment area. 
Additionally, EPA is proposing to approve the 8-hour ozone maintenance 
plan for Christian County, Kentucky. This proposed approval is based on 
EPA's determination that the Commonwealth of Kentucky has demonstrated 
that Christian County, Kentucky has met the criteria for redesignation 
to attainment specified in the Clean Air Act (CAA), including the 
determination that the entire Clarksville-Hopkinsville 8-hour ozone 
nonattainment area has attained the 8-hour ozone standard. On June 29, 
2005, the State of Tennessee submitted a redesignation request and 
maintenance plan for the Montgomery, Tennessee portion of this area for 
EPA parallel processing. In this action, EPA is also providing 
information on the status of its transportation conformity adequacy 
determination for the new motor vehicle emission budgets (MVEBs) for 
the years 2004 and 2016 that are contained in the 12-year 8-hour ozone 
maintenance plan for Christian County, Kentucky. EPA is proposing to 
approve such MVEBs. In the Final Rules section of this Federal 
Register, EPA is taking action to approve the redesignation request and 
maintenance plan without prior proposal. A detailed rationale for the 
redesignation and other actions is set forth in the direct final rule. 
If no adverse comments are received in response to this action, no 
further activity is contemplated. If EPA receives adverse comments, the 
direct final rulemaking will be withdrawn and 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 interested in commenting on this document should do so at 
this time.

DATES: Comments must be received on or before October 24, 2005.

ADDRESSES: Comments may be mailed to Stacy DiFrank, 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. Please follow the 
detailed instructions described in the direct final rule, ADDRESSES 
section which is published in the Rules Section of this Federal 
Register.

FOR FURTHER INFORMATION CONTACT: Stacy DiFrank's telephone number is 
(404) 562-9042. Ms. Stacy DiFrank can also be reached via electronic 
mail at <a href="/cdn-cgi/l/email-protection#b3d7dad5c1d2ddd89dc0c7d2d0caf3d6c3d29dd4dcc5"><span class="__cf_email__" data-cfemail="e4808d8296858a8fca979085879da4819485ca838b92">[email protected]</span></a>.

SUPPLEMENTARY INFORMATION: For additional information on the approval 
of Kentucky's redesignation request and maintenance plan for the 
Christian County portion of the Clarksville-Hopkinsville 8-hour ozone 
nonattainment area, please see the direct final rule which is published 
in the Final Rules section of this Federal Register.

    Dated: September 13, 2005.
A. Stanley Meiburg,
Acting, Regional Administrator, Region 4.
[FR Doc. 05-18960 Filed 9-21-05; 8:45 am]
BILLING CODE 6560-50-P


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