[Federal Register Volume 69, Number 27 (Tuesday, February 10, 2004)]
[Rules and Regulations]
[Pages 6160-6164]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-2707]



ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[WV063-6032a; FRL-7612-9]


Approval and Promulgation of Air Quality Implementation Plans; 
West Virginia; MOBILE6-Based Motor Vehicle Emission Budgets for 
Greenbrier County and the Charleston, Huntington, and Parkersburg 1-
Hour Ozone Maintenance Areas

AGENCY: Environmental Protection Agency (EPA).

ACTION: Direct final rule.

-----------------------------------------------------------------------

SUMMARY: EPA is taking direct final action to approve State 
Implementation Plan (SIP) revisions submitted by the State of West 
Virginia. The revisions amend the 1-hour ozone maintenance plans for 
Greenbrier County and the Charleston, Huntington and Parkersburg areas. 
These revisions amend the maintenance plans' base year and 2005 highway 
mobile volatile organic compound (VOC) and nitrogen oxide 
(NO<INF>X</INF>) emission inventories and the 2005 motor vehicle 
emissions budgets (MVEBs) to reflect the use of MOBILE6. These 
revisions also reallocate a portion of each plans' safety margins which 
results in an increase in the MVEBs. The revised plans continue to 
demonstrate maintenance of the 1-hour national ambient air quality 
standard (NAAQS) for ozone. EPA is approving these SIP revisions to the 
West Virginia maintenance plans in accordance with the requirements of 
the Clean Air Act.

DATES: This rule is effective on April 12, 2004, without further 
notice, unless EPA receives adverse written comment by March 11, 2004. 
If EPA receives such comments, it will publish a timely withdrawal of 
the direct final rule in the Federal Register and inform the public 
that the rule will not take effect.

ADDRESSES: Comments may be submitted either by mail or electronically. 
Written comments should be mailed to Larry Budney, Energy, Radiation 
and Indoor Environment Branch, Mailcode 3AP23, U.S. Environmental 
Protection Agency, Region III, 1650 Arch Street, Philadelphia, 
Pennsylvania 19103. Electronic comments should be sent either to 
<a href="/cdn-cgi/l/email-protection#f19384959f9488df9d90838388b1948190df969e87"><span class="__cf_email__" data-cfemail="95f7e0f1fbf0ecbbf9f4e7e7ecd5f0e5f4bbf2fae3">[email protected]</span></a> or to http://www.regulations.gov, which is an 
alternative method for submitting electronic comments to EPA. To submit 
comments, please follow the detailed instructions described in Part III 
of the Supplementary Information section. Copies of the documents 
relevant to this action are available for public inspection during 
normal business hours at the Air Protection Division, U.S. 
Environmental Protection Agency, Region III, 1650 Arch Street, 
Philadelphia, Pennsylvania 19103; and the West Virginia Department of 
Environmental Protection, Division of Air Quality, 7012 MacCorkle 
Avenue, SE., Charleston, West Virginia 25304-2943.

FOR FURTHER INFORMATION CONTACT: Larry Budney, (215) 814-2184, or by e-
mail at <a href="/cdn-cgi/l/email-protection#187a6d7c767d613674796a6a61587d6879367f776e"><span class="__cf_email__" data-cfemail="8ceef9e8e2e9f5a2e0edfefef5cce9fceda2ebe3fa">[email protected]</span></a>.

SUPPLEMENTARY INFORMATION: 

I. Background

    On August 4, 1995 (60 FR 39911), September 6, 1994 (59 FR 45985), 
December 21, 1994 (59 FR 65719) and September 6, 1994 (59 FR 45978), 
respectively, EPA redesignated Greenbrier County and the Charleston, 
Huntington and Parkersburg areas of West Virginia to attainment for the 
1-hour ozone NAAQS. For each of those areas, the redesignations 
included approvals of 1-hour ozone maintenance plans, which identify 
on-road MVEBs for VOCs and NO<INF>X</INF>, which are ozone precursors. 
The MVEBs contained in those maintenance plans were based upon MOBILE5, 
which was the latest EPA on-road motor vehicle emission factor model 
available at the time.
    The MOBILE model is an EPA emission factor model for estimating 
pollutant emissions from on-road motor vehicles. The MOBILE model 
calculates emissions of VOCs and NO<INF>X</INF> from passenger cars, 
motorcycles, buses, and light-duty and heavy-duty trucks. The model 
accounts for the emission impacts of factors such as changes in vehicle 
emission standards, changes in vehicle populations and activity, and 
various local conditions such as temperature, humidity, fuel quality, 
and air quality programs. The MOBILE model is used to calculate current 
and future inventories of motor vehicle emissions at the national and 
local level. These inventories are used to make decisions about air 
pollution policies and programs at the local, State and national level. 
MOBILE-based inventories are also used in demonstrating how the Clean 
Air Act's (the Act's) requirements for SIPs and transportation 
conformity are met.
    The MOBILE model was first developed in 1978. It has been updated 
several times to reflect changes in the vehicle fleet and fuels, to 
incorporate EPA's growing understanding of vehicle emissions, and to 
address new emission regulations and modeling needs. EPA released 
MOBILE6, the latest version of

[[Page 6161]]

the MOBILE model, on January 29, 2002 (67 FR 4254). Although some minor 
updates were made in 1996 with the release of MOBILE5b, MOBILE6 is the 
first major revision to MOBILE since MOBILE5a was released in 1993. 
Beginning in January of 2004, all conformity determinations for new 
transportation improvement programs and long range transportation plans 
will be required to use MOBILE6 to demonstrate conformity.
    For the year 2005, the maintenance plans identified and established 
MVEBs for VOC and NO<INF>X</INF> for each area, to which each 
respective area's transportation improvement program and long range 
transportation plan must conform. Conformity to MVEBs in a SIP means 
that transportation activities will not produce new air quality 
violations, worsen existing violations, or delay timely attainment of 
the NAAQS.

II. Summary of West Virginia's SIP Revision and EPA's Review

A. MOBILE6-Based Highway Motor Vehicle Emission Inventories

    On October 15, 2003, the State of West Virginia submitted to EPA a 
formal revision to its State Implementation Plan (SIP). The SIP 
revision contains recalculations of the MVEBs to reflect the use of the 
MOBILE6 emission factor model for Greenbrier County and the Charleston, 
Huntington and Parkersburg maintenance areas. The revisions also 
reallocate a portion of the differences (safety margins) between the 
total base year and total projected 2005 emissions for each area which 
produces an increase in the MVEBs. The base year is 1990 for the 
Charleston and Parkersburg areas, and 1993 for Greenbrier County and 
the Huntington area. By increasing the MVEBs, the West Virginia 
Department of Environmental Protection (WVDEP) is ensuring that 
conformity can be demonstrated in each area. The October 15, 2003 
submittal, while increasing the MVEBs still ensures maintenance of the 
NAAQS for ozone in each area.
    Tables 1-4 and the discussion that follows describe how the new 
MOBILE6-based MVEBs were determined for each maintenance area.

         Table 1.--Greenbrier County Reallocation of Emissions and Determination of MOBILE6-Based MVEBs
                                                   [Tons/day]
----------------------------------------------------------------------------------------------------------------
                                         Emissions prior to reallocation      Safety margin      2005 emissions
                                     ---------------------------------------------------------------------------
                                                                             Allocated safety
                                        1993 base year    2005 projection         margin           2005 MVEB
----------------------------------------------------------------------------------------------------------------
Highway MOBILE6 Emissions:
    VOC.............................               4.22               1.96               1.50               3.46
    NOX.............................               5.07               3.80               1.05               4.85
-------------------------------------
                                         1993 base year   2005 projection     base minus 2005      2005 total
-------------------------------------
Total (Point, Area and Mobile)
 Emissions:
    VOC.............................               8.59               6.92               1.67               8.42
    NOX.............................               6.67               5.50               1.17               6.56
----------------------------------------------------------------------------------------------------------------


          Table 2.--Charleston Area Reallocation of Emissions and Determination of MOBILE6-Based MVEBs
                                                   [Tons/day]
----------------------------------------------------------------------------------------------------------------
                                         Emissions prior to reallocation      Safety margin      2005 emissions
                                     ---------------------------------------------------------------------------
                                                                             Allocated safety
                                        1990 base year    2005 projection         margin           2005 MVEB
----------------------------------------------------------------------------------------------------------------
Highway MOBILE6 Emissions:
    VOC.............................               38.2               14.4               30.1               44.5
    NOX.............................               35.8               24.5               29.6               54.1
-------------------------------------
                                         1990 base year   2005 projection    Base minus 2005       2005 total
-------------------------------------
Total (Point, Area and Mobile)
 Emissions:
    VOC.............................              114.8               81.3               33.5              111.4
    NOX.............................              441.9              409.0               32.9              438.6
----------------------------------------------------------------------------------------------------------------


          Table 3.--Huntington Area Reallocation of Emissions and Determination of MOBILE6-Based MVEBs
                                                   [Tons/day]
----------------------------------------------------------------------------------------------------------------
                                         Emissions prior to reallocation      Safety margin      2005 emissions
                                     ---------------------------------------------------------------------------
                                                                             Allocated safety
                                        1993 base year    2005 projection         margin           2005 MVEB
----------------------------------------------------------------------------------------------------------------
Highway MOBILE6 Emissions:
    VOC.............................               13.0                6.5                6.9               13.4
    NOX.............................               13.0               10.2                3.7               13.9
-------------------------------------
                                         1993 base year   2005 projection    Base minus 2005       2005 total
-------------------------------------
Total (Point, Area and Mobile)
 Emissions:
    VOC.............................               42.5               34.9                7.6               41.8

[[Page 6162]]

 
    NOX.............................               42.2               38.1                4.1               41.8
----------------------------------------------------------------------------------------------------------------


          Table 4.--Parkersburg Area Reallocation of Emissions and Determination of MOBILE6-Based MVEBs
                                                   [Tons/day]
----------------------------------------------------------------------------------------------------------------
                                         Emissions prior to reallocation      Safety margin      2005 emissions
                                     ---------------------------------------------------------------------------
                                                                             Allocated safety
                                        1990 base year    2005 projection         margin           2005 MVEB
----------------------------------------------------------------------------------------------------------------
Highway MOBILE6 Emissions:
    VOC.............................               10.0                4.0                9.5               13.4
    NOX.............................                8.7                6.3                3.6                9.9
-------------------------------------
                                         1990 base year   2005 projection    Base minus 2005       2005 total
-------------------------------------
Total (Point, Area and Mobile)
 Emissions:
    VOC.............................               55.1               44.6               10.5               54.1
    NOX.............................               28.6               24.6                4.1               28.2
----------------------------------------------------------------------------------------------------------------

    All emissions presented in the tables are recalculated based upon 
MOBILE6. The 2005 MVEB VOC AND NO<INF>X</INF> emissions (upper portion 
of last column) serve as the new MVEBs for transportation conformity 
planning.
    As indicated in Tables 1-4 (see explanation that follows), ninety 
percent of the difference between the total base year emissions and the 
total projected 2005 emissions has been allocated to the respective on-
road MVEBs. The remaining ten percent has been reserved as residual 
safety margins in the total maintenance budgets to ensure continued 
maintenance of the 1-hour ozone NAAQS.
    To explain how the safety margins are determined and allocated, the 
VOC emissions for the Parkersburg area (in Table 4) may be used as an 
example. The total 1990 base year VOC emissions are 55.1 tons/day 
(tpd), which is the maximum amount of VOC emissions consistent with 
maintenance of the 1-hour ozone NAAQS. Since the total projected 2005 
emissions are 44.6 tpd, there is a 10.5 tpd VOC safety margin (i.e., 
the ozone NAAQS would continue to be maintained if total VOC emissions 
increased as much as 10.5 tpd above the projected 2005 emissions of 
44.6 tpd.) Ninety percent of the 10.5 tpd safety margin (i.e., 9.5 tpd) 
has been allocated to the 2005 projected highway VOC emissions (4.0 
tpd) yielding a MVEB of 13.4 tpd of VOC for year 2005. (Note regarding 
the 13.4 number: 13.4, as opposed to 13.5, results from mathematical 
rounding of the VOC and safety margin numbers).
    In the same Parkersburg example (again refer to Table 4), the 
remaining 1.0 tpd of the VOC safety margin has been reserved as a 
residual safety margin in the total (point, area and mobile source) 
maintenance VOC budget. The 1.0 tpd residual VOC safety margin is 
subtracted from the 1990 total allowable base year emissions (55.1 tpd) 
to yield 54.1 as the new total VOC maintenance budget for the 
Parkersburg area.
    For all of the West Virginia 1-hour ozone maintenance areas 
addressed herein, the WVDEP recalculated the 2005 MVEBs using the 
latest available planning assumption data. However, the most up-to-date 
West Virginia vehicle registration data do not differentiate between 
passenger cars and light duty trucks, rendering those data inadequate 
for use in estimating emissions. Therefore, the WVDEP used the latest 
available West Virginia Highway Performance Monitoring System (HPMS) 
data on vehicle miles traveled (VMT) by vehicle type and roadway class 
obtained from the West Virginia Department of Transportation. The WVDEP 
used the HPMS data to adjust the national MOBILE6 default VMT data to 
generate a more accurate VMT mix by vehicle type and roadway class. 
That adjusted VMT mix was used in conjunction with MOBILE6 in 
calculating the base year and projected 2005 VOC and NO<INF>X</INF> 
emissions.

III. Final Action

    EPA is approving West Virginia's October 15, 2003 SIP revision 
submittal which amends the 1-hour ozone maintenance plans for the 
Greenbrier County and the Charleston, Huntington and Parkersburg areas. 
These revisions amend the maintenance plans' base year and 2005 highway 
mobile VOC and NO<INF>X</INF> emission inventories and the 2005 MVEBs 
to reflect the use of MOBILE6. These revisions also reallocate a 
portion of each plans' safety margins which results in an increase in 
the MVEBs. EPA is approving these SIP revisions to the maintenance 
plans for Greenbrier County and the Charleston, Huntington and 
Parkersburg areas because the October 15, 2003 submittal continues to 
demonstrate maintenance of the 1-hour ozone NAAQS. EPA is publishing 
this rule without prior proposal because the Agency views this as a 
noncontroversial amendment and anticipates no adverse comment, since no 
significant adverse comments were received on the SIP revision at the 
State level. However, in the ``Proposed Rules'' section of today's 
Federal Register, EPA is publishing a separate document that will serve 
as the proposal to approve the SIP revision if adverse comments are 
filed. This rule will be effective on April 12, 2004 without further 
notice unless EPA receives adverse comment by March 11, 2004.
    If EPA receives adverse comment, EPA will publish a timely 
withdrawal in the Federal Register informing the

[[Page 6163]]

public that the rule will not take effect. EPA will address all public 
comments in a subsequent final rule based on the proposed rule. EPA 
will not institute a second comment period on this action. Any parties 
interested in commenting must do so at this time. Please note that if 
EPA receives adverse comment on an amendment, paragraph, or section of 
this rule and if that provision may be severed from the remainder of 
the rule, EPA may adopt as final those provisions of the rule that are 
not the subject of an adverse comment.
    You may submit comments either electronically or by mail. To ensure 
proper receipt by EPA, identify the appropriate rulemaking 
identification number WV063-6032 in the subject line on the first page 
of your comment. Please ensure that your comments are submitted within 
the specified comment period. Comments received after the close of the 
comment period will be marked ``late.'' EPA is not required to consider 
these late comments.
    1. Electronically. If you submit an electronic comment as 
prescribed below, EPA recommends that you include your name, mailing 
address, and an e-mail address or other contact information in the body 
of your comment. Also include this contact information on the outside 
of any disk or CD ROM you submit, and in any cover letter accompanying 
the disk or CD ROM. This ensures that you can be identified as the 
submitter of the comment and allows EPA to contact you in case EPA 
cannot read your comment due to technical difficulties or needs further 
information on the substance of your comment. EPA's policy is that EPA 
will not edit your comment, and any identifying or contact information 
provided in the body of a comment will be included as part of the 
comment that is placed in the official public docket. 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.
    i. E-mail. Comments may be sent by electronic mail (e-mail) to 
<a href="/cdn-cgi/l/email-protection#086a7d6c666d712664697a7a71486d7869266f677e"><span class="__cf_email__" data-cfemail="c7a5b2a3a9a2bee9aba6b5b5be87a2b7a6e9a0a8b1">[email protected]</span></a> attention WV063-6032. EPA's e-mail system is not 
an ``anonymous access'' system. If you send an e-mail comment directly 
without going through Regulations.gov, EPA's e-mail system 
automatically captures your e-mail address. E-mail addresses that are 
automatically captured by EPA's e-mail system are included as part of 
the comment that is placed in the official public docket.
    ii. Regulations.gov. Your use of Regulations.gov is an alternative 
method of submitting electronic comments to EPA. Go directly to http://www.regulations.gov, then select ``Environmental Protection Agency'' at 
the top of the page and use the ``go'' button. The list of current EPA 
actions available for comment will be listed. Please follow the online 
instructions for submitting comments. The system is an ``anonymous 
access'' system, which means EPA will not know your identity, e-mail 
address, or other contact information unless you provide it in the body 
of your comment.
    iii. Disk or CD ROM. You may submit comments on a disk or CD ROM 
that you mail to the mailing address identified in the ADDRESSES 
section of this document. These electronic submissions will be accepted 
in WordPerfect, Word or ASCII file format. Avoid the use of special 
characters and any form of encryption.
    2. By Mail. Written comments should be addressed to the EPA 
Regional office listed in the ADDRESSES section of this document. For 
public commenters, it is important to note that EPA's policy is that 
public comments, whether submitted electronically or on paper, will be 
made available for public viewing at the EPA Regional Office, as EPA 
receives them and without change, unless the comment contains 
copyrighted material, confidential business information (CBI), or other 
information whose disclosure is restricted by statute. When EPA 
identifies a comment containing copyrighted material, EPA will provide 
a reference to that material in the version of the comment that is 
placed in the official public rulemaking file. The entire printed 
comment, including the copyrighted material, will be available at the 
Regional Office for public inspection.
    Submittal of CBI Comments--Do not submit information that you 
consider to be CBI electronically to EPA. You may claim information 
that you submit to EPA as CBI by marking any part or all of that 
information as CBI (if you submit CBI on disk or CD ROM, mark the 
outside of the disk or CD ROM as CBI and then identify electronically 
within the disk or CD ROM the specific information that is CBI). 
Information so marked will not be disclosed except in accordance with 
procedures set forth in 40 CFR part 2.
    In addition to one complete version of the comment that includes 
any information claimed as CBI, a copy of the comment that does not 
contain the information claimed as CBI must be submitted for inclusion 
in the official public regional rulemaking file. If you submit the copy 
that does not contain CBI on disk or CD ROM, mark the outside of the 
disk or CD ROM clearly that it does not contain CBI. Information not 
marked as CBI will be included in the public file and available for 
public inspection without prior notice. If you have any questions about 
CBI or the procedures for claiming CBI, please consult the person 
identified in the FOR FURTHER INFORMATION CONTACT section.

Considerations When Preparing Comments to EPA

    You may find the following suggestions helpful for preparing your 
comments:
    1. Explain your views as clearly as possible.
    2. Describe any assumptions that you used.
    3. Provide any technical information and/or data you used that 
support your views.
    4. If you estimate potential burden or costs, explain how you 
arrived at your estimate.
    5. Provide specific examples to illustrate your concerns.
    6. Offer alternatives.
    7. Make sure to submit your comments by the comment period deadline 
identified.
    8. To ensure proper receipt by EPA, identify the appropriate 
regional file/rulemaking identification number in the subject line on 
the first page of your response. It would also be helpful if you 
provided the name, date, and Federal Register citation related to your 
comments.

IV. Statutory and Executive Order Reviews

A. General Requirements

    Under Executive Order 12866 (58 FR 51735, October 4, 1993), this 
action is not a ``significant regulatory action'' and therefore is not 
subject to review by the Office of Management and Budget. For this 
reason, this action is also not subject to Executive Order 13211, 
``Actions Concerning Regulations That Significantly Affect Energy 
Supply, Distribution, or Use'' (66 FR 28355, May 22, 2001). This action 
merely approves state law as meeting Federal requirements and imposes 
no additional requirements beyond those imposed by state law. 
Accordingly, the Administrator certifies that this rule will not have a 
significant economic impact on a substantial number of small entities 
under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.). Because 
this rule approves pre-existing requirements under state law and does 
not impose any additional enforceable duty beyond that required by 
state law, it does not contain any unfunded mandate or significantly or 
uniquely affect small

[[Page 6164]]

governments, as described in the Unfunded Mandates Reform Act of 1995 
(Public Law 104-4). This rule also does not have tribal implications 
because it will not have a substantial direct effect on one or more 
Indian tribes, on the relationship between the Federal Government and 
Indian tribes, or on the distribution of power and responsibilities 
between the Federal Government and Indian tribes, as specified by 
Executive Order 13175 (65 FR 67249, November 9, 2000). This action also 
does not have Federalism implications because it does not have 
substantial direct effects on the States, on the relationship between 
the national government and the States, or on the distribution of power 
and responsibilities among the various levels of government, as 
specified in Executive Order 13132 (64 FR 43255, August 10, 1999). This 
action merely approves a state rule implementing a Federal standard, 
and does not alter the relationship or the distribution of power and 
responsibilities established in the Clean Air Act. This rule also is 
not subject to Executive Order 13045 ``Protection of Children from 
Environmental Health Risks and Safety Risks'' (62 FR 19885, April 23, 
1997), because it is not economically significant. In reviewing SIP 
submissions, EPA's role is to approve state choices, provided that they 
meet the criteria of the Clean Air Act. In this context, in the absence 
of a prior existing requirement for the State to use voluntary 
consensus standards (VCS), EPA has no authority to disapprove a SIP 
submission for failure to use VCS. It would thus be inconsistent with 
applicable law for EPA, when it reviews a SIP submission, to use VCS in 
place of a SIP submission that otherwise satisfies the provisions of 
the Clean Air Act. Thus, the requirements of section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) do not apply. This rule does not impose an information collection 
burden under the provisions of the Paperwork Reduction Act of 1995 (44 
U.S.C. 3501 et seq.).

B. Submission to Congress and the Comptroller General

    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
Small Business Regulatory Enforcement Fairness Act of 1996, generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report, which includes a copy of the rule, 
to each House of the Congress and to the Comptroller General of the 
United States. EPA will submit a report containing this rule and other 
required information to the U.S. Senate, the U.S. House of 
Representatives, and the Comptroller General of the United States prior 
to publication of the rule in the Federal Register. This rule is not a 
``major rule'' as defined by 5 U.S.C. 804(2).

C. Petitions for Judicial Review

    Under section 307(b)(1) of the Clean Air Act, petitions for 
judicial review of this action must be filed in the United States Court 
of Appeals for the appropriate circuit by April 12, 2004. Filing a 
petition for reconsideration by the Administrator of this final rule 
does not affect the finality of this rule for the purposes of judicial 
review nor does it extend the time within which a petition for judicial 
review may be filed, and shall not postpone the effectiveness of such 
rule or action. This action approving West Virginia's revisions to the 
base-year and 2005 MVEBs of its 1-hour ozone maintenance plans for the 
Greenbrier County and the Charleston, Huntington and Parkersburg areas 
to reflect the use of MOBILE6 may not be challenged later in 
proceedings to enforce its requirements. (See section 307(b)(2).)

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Nitrogen dioxide, 
Ozone, Incorporation by reference, Reporting and recordkeeping 
requirements, Volatile organic compounds.

    Dated: January 14, 2004.
James W. Newsom,
Acting Regional Administrator, Region III.

0
40 CFR part 52 is amended as follows:

PART 52--[AMENDED]

0
1. The authority citation for part 52 continues to read as follows:

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

Subpart XX--West Virginia

0
2. Section 52.2520 is amended by adding paragraph (c)(57) to read as 
follows:


Sec. 52.2520  Identification of plan.

* * * * *
    (c) * * *
    (57) Revisions to the West Virginia 1-hour ozone maintenance plans 
for Greenbrier County and the Charleston, Huntington and Parkersburg 
areas to amend the base year and 2005 mobile emissions inventories and 
the 2005 motor vehicle emission budgets to reflect the use of MOBILE6, 
and to reallocate a portion of projected MOBILE6-based emission safety 
margins to those 2005 motor vehicle emission budgets. These revisions 
were submitted by the State of West Virginia Department of 
Environmental Protection to EPA on October 15, 2003.
    (i) Incorporation by reference.
    (A) Letter of October 15, 2003 from the Secretary of the West 
Virginia Department of Environmental Protection transmitting revisions 
to West Virginia's ozone maintenance plans for the Greenbrier County 
and the Charleston, Huntington and Parkersburg areas.
    (B) Document entitled ``Final Revisions to the 1-Hour Ozone 
Maintenance Plans for the Charleston, WV (Kanawha and Putnam Counties); 
Huntingdon, WV (Cabell & Wayne Counties); Parkersburg, WV (Wood 
County); and Greenbrier County WV Maintenance Areas.'' This document 
establishes revised motor vehicle emissions budgets for the following 
1-hour ozone maintenance plans, effective September 26, 2003:
    (1) Revisions to the Charleston, West Virginia (Kanawha and Putnam 
Counties) ozone maintenance plan, establishing revised motor vehicle 
emissions budgets of 44.5 tons/day of VOC and 54.1 tons/day of 
NO<INF>X</INF>.
    (2) Revisions to the Huntington, West Virginia (Cabell and Wayne 
Counties) ozone maintenance plan, establishing revised motor vehicle 
emissions budgets of 13.4 tons/day of VOC and 13.9 tons/day of 
NO<INF>X</INF>.
    (3) Revisions to the Parkersburg, West Virginia (Wood County) ozone 
maintenance plan, establishing revised motor vehicle emissions budgets 
of 13.4 tons/day of VOC and 9.9 tons/day of NO<INF>X</INF>.
    (4) Revisions to the Greenbrier County, West Virginia ozone 
maintenance plan, establishing revised motor vehicle emissions budgets 
of 3.46 tons/day of VOC and 4.85 tons/day of NO<INF>X</INF>.
    (ii) Additional Material.--Remainder of the State submittal 
pertaining to the revisions listed in paragraph (c)(57)(i) of this 
section.

[FR Doc. 04-2707 Filed 2-9-04; 8:45 am]
BILLING CODE 6560-50-P


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