81_FR_66766 81 FR 66578 - Air Plan Approval; Ohio; Redesignation of the Columbus, Ohio Area to Attainment of the 2008 Ozone Standard

81 FR 66578 - Air Plan Approval; Ohio; Redesignation of the Columbus, Ohio Area to Attainment of the 2008 Ozone Standard

ENVIRONMENTAL PROTECTION AGENCY

Federal Register Volume 81, Issue 188 (September 28, 2016)

Page Range66578-66591
FR Document2016-23293

The Environmental Protection Agency (EPA) is proposing to find that the Columbus, Ohio area is attaining the 2008 8-hour ozone National Ambient Air Quality Standard (NAAQS or standard) and to approve a request from the Ohio Environmental Protection Agency (Ohio EPA) to redesignate the area to attainment for the 2008 ozone NAAQS because the request meets the statutory requirements for redesignation under the Clean Air Act (CAA or Act). The Columbus area includes Delaware, Fairfield, Knox, Licking, and Mason Counties. Ohio EPA submitted this request on June 16, 2016. EPA is also proposing to approve, as a revision to the Ohio State Implementation Plan (SIP), the state's plan for maintaining the 2008 8-hour ozone standard through 2030 in the Columbus area. Finally, EPA finds adequate and is proposing to approve the state's 2020 and 2030 volatile organic compound (VOC) and oxides of nitrogen (NO<INF>X</INF>) Motor Vehicle Emission Budgets (MVEBs) for the Columbus area.

Federal Register, Volume 81 Issue 188 (Wednesday, September 28, 2016)
[Federal Register Volume 81, Number 188 (Wednesday, September 28, 2016)]
[Proposed Rules]
[Pages 66578-66591]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-23293]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[EPA-R05-OAR-2016-0372; FRL-9953-15-Region 5]


Air Plan Approval; Ohio; Redesignation of the Columbus, Ohio Area 
to Attainment of the 2008 Ozone Standard

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to find 
that the Columbus, Ohio area is attaining the 2008 8-hour ozone 
National Ambient Air Quality Standard (NAAQS or standard) and to 
approve a request from the Ohio Environmental Protection Agency (Ohio 
EPA) to redesignate the area to attainment for the 2008 ozone NAAQS 
because the request meets the statutory requirements for redesignation 
under the Clean Air Act (CAA or Act). The Columbus area includes 
Delaware, Fairfield, Knox, Licking, and Mason Counties. Ohio EPA 
submitted this request on June 16, 2016. EPA is also proposing to 
approve, as a revision to the Ohio State Implementation Plan (SIP), the 
state's plan for maintaining the 2008 8-hour ozone standard through 
2030 in the Columbus area. Finally, EPA finds adequate and is proposing 
to approve the state's 2020 and 2030 volatile organic compound (VOC) 
and oxides of nitrogen (NOX) Motor Vehicle Emission Budgets 
(MVEBs) for the Columbus area.

[[Page 66579]]


DATES: Comments must be received on or before October 28, 2016.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R05-
OAR-2016-0372 at http://www.regulations.gov or via email to 
[email protected]. For comments submitted at Regulations.gov, 
follow the online instructions for submitting comments. Once submitted, 
comments cannot be edited or removed from Regulations.gov. For either 
manner of submission, EPA may publish any comment received to its 
public docket. Do not submit electronically any information you 
consider to be Confidential Business Information (CBI) or other 
information whose disclosure is restricted by statute. Multimedia 
submissions (audio, video, etc.) must be accompanied by a written 
comment. The written comment is considered the official comment and 
should include discussion of all points you wish to make. EPA will 
generally not consider comments or comment contents located outside of 
the primary submission (i.e. on the web, cloud, or other file sharing 
system). For additional submission methods, please contact the person 
identified in the For Further Information Contact section. For the full 
EPA public comment policy, information about CBI or multimedia 
submissions, and general guidance on making effective comments, please 
visit http://www2.epa.gov/dockets/commenting-epa-dockets.

FOR FURTHER INFORMATION CONTACT: Kathleen D'Agostino, Environmental 
Scientist, Attainment Planning and Maintenance Section, Air Programs 
Branch (AR-18J), Environmental Protection Agency, Region 5, 77 West 
Jackson Boulevard, Chicago, Illinois 60604, (312) 886-1767, 
[email protected].

SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,'' 
``us,'' or ``our'' is used, we mean EPA. This supplementary information 
section is arranged as follows:

I. What are the actions EPA is proposing?
II. What is the background for these actions?
III. What are the criteria for redesignation?
IV. What is EPA's analysis of Ohio's redesignation request?
    A. Has the Columbus area attained the 2008 8-hour ozone NAAQS?
    B. Has Ohio met all applicable requirements of section 110 and 
part D of the CAA for the Columbus area, and does Ohio have a fully 
approved SIP for the area under section 110(k) of the CAA?
    1. Ohio Has Met All Applicable Requirements of Section 110 and 
Part D of the CAA Applicable to the Columbus Area for Purposes of 
Redesignation
    2. The Columbus Area Has a Fully Approved SIP for Purposes of 
Redesignation Under Section 110(k) of the CAA
    C. Are the air quality improvements in the Columbus area due to 
permanent and enforceable emission reductions?
    1. Permanent and Enforceable Emission Controls Implemented
    2. Emission Reductions
    3. Meteorology
    D. Does Ohio have a fully approvable ozone maintenance plan for 
the Columbus area?
    1. Attainment Inventory
    2. Has the state documented maintenance of the ozone standard in 
the Columbus area?
    3. Continued Air Quality Monitoring
    4. Verification of Continued Attainment
    5. What is the contingency plan for the Columbus area?
V. Has the state adopted approvable motor vehicle emission budgets?
    A. Motor Vehicle Emission Budgets
    B. What is the status of EPA's adequacy determination for the 
proposed VOC and NOX MVEBs for the Columbus area?
    C. What is a safety margin?
VI. Proposed Actions
VII. Statutory and Executive Order Reviews

I. What are the actions EPA is proposing?

    EPA is proposing to take several related actions. EPA is proposing 
to determine that the Columbus nonattainment area is attaining the 2008 
ozone standard, based on quality-assured and certified monitoring data 
for 2013-2015 and that this area has met the requirements for 
redesignation under section 107(d)(3)(E) of the CAA. EPA is thus 
proposing to approve Ohio EPA's request to change the legal designation 
of the Columbus area from nonattainment to attainment for the 2008 
ozone standard. EPA is also proposing to approve, as a revision to the 
Ohio SIP, the state's maintenance plan (such approval being one of the 
CAA criteria for redesignation to attainment status) for the area. The 
maintenance plan is designed to keep the Columbus area in attainment of 
the 2008 ozone NAAQS through 2030. Finally, EPA finds adequate and is 
proposing to approve the newly-established 2020 and 2030 MVEBs for the 
Columbus area. The adequacy comment period for the MVEBs began on July 
22, 2016, with EPA's posting of the availability of the submittal on 
EPA's Adequacy Web site (at http://www.epa.gov/otaq/stateresources/transconf/adequacy.htm). The adequacy comment period for these MVEBs 
ended on August 22, 2016. EPA did not receive any requests for this 
submittal, or adverse comments on this submittal during the adequacy 
comment period. In a letter dated August 23, 2016, EPA informed Ohio 
EPA that we found the 2020 and 2030 MVEBs to be adequate for use in 
transportation conformity analyses. Please see section V.B. of this 
rulemaking, ``What is the status of EPA's adequacy determination for 
the proposed VOC and NOX MVEBs for the Columbus area,'' for 
further explanation of this process. Therefore, we find adequate, and 
are proposing to approve, the State's 2020 and 2030 MVEBs for 
transportation conformity purposes.

II. What is the background for these actions?

    EPA has determined that ground-level ozone is detrimental to human 
health. On March 12, 2008, EPA promulgated a revised 8-hour ozone NAAQS 
of 0.075 parts per million (ppm). See 73 FR 16436 (March 27, 2008). 
Under EPA's regulations at 40 CFR part 50, the 2008 8-hour ozone NAAQS 
is attained in an area when the 3-year average of the annual fourth 
highest daily maximum 8-hour average concentration is equal to or less 
than 0.075 ppm, when truncated after the thousandth decimal place, at 
all of the ozone monitoring sites in the area. See 40 CFR 50.15 and 
appendix P to 40 CFR part 50.
    Upon promulgation of a new or revised NAAQS, section 107(d)(1)(B) 
of the CAA requires EPA to designate as nonattainment any areas that 
are violating the NAAQS, based on the most recent three years of 
quality assured ozone monitoring data. The Columbus area was designated 
as a marginal nonattainment area for the 2008 ozone NAAQS on May 21, 
2012 (77 FR 30088) (effective July 20, 2012).
    In a final implementation rule for the 2008 ozone NAAQS (SIP 
Requirements Rule),\1\ EPA established ozone standard attainment dates 
based on table 1 of section 181(a) of the CAA. This established an 
attainment date three years after the July 20, 2012, effective 
designation date for areas classified as marginal nonattainment for the 
2008 ozone NAAQS. Therefore, the attainment date for the Columbus area 
was July 20, 2015. On May 4, 2016 (81 FR 26697), in accordance with 
section

[[Page 66580]]

181(b)(2)(A) of the CAA and the provisions of the SIP Requirements Rule 
(40 CFR 51.1103), EPA made a determination that the Columbus area 
attained the standard by its July 20, 2015, attainment date for the 
2008 ozone NAAQS. EPA's determination was based upon 3 years of 
complete, quality-assured and certified data for the 2012-2014 time 
period.
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    \1\ This rule, titled ``Implementation of the 2008 National 
Ambient Air Quality Standards for Ozone: State Implementation Plan 
Requirements'' and published at 80 FR 12264 (March 6, 2015), 
addresses nonattainment area SIP requirements for the 2008 ozone 
NAAQS, including requirements pertaining to attainment 
demonstrations, reasonable further progress (RFP), reasonably 
available control technology (RACT), reasonably available control 
measures (RACM), new source review (NSR), emission inventories, and 
the timing requirements for SIP submissions and compliance with 
emission control measures in the SIP. This rule also addresses the 
revocation of the 1997 ozone NAAQS and the anti-backsliding 
requirements that apply when the 1997 ozone NAAQS is revoked.
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III. What are the criteria for redesignation?

    Section 107(d)(3)(E) of the CAA allows redesignation of an area to 
attainment of the NAAQS provided that: (1) The Administrator (EPA) 
determines that the area has attained the NAAQS; (2) the Administrator 
has fully approved the applicable implementation plan for the area 
under section 110(k) of the CAA; (3) the Administrator determines that 
the improvement in air quality is due to permanent and enforceable 
reductions in emissions resulting from implementation of the applicable 
SIP, applicable Federal air pollutant control regulations, and other 
permanent and enforceable emission reductions; (4) the Administrator 
has fully approved a maintenance plan for the area as meeting the 
requirements of section 175A of the CAA; and (5) the state containing 
the area has met all requirements applicable to the area for the 
purposes of redesignation under section 110 and part D of the CAA.
    On April 16, 1992, EPA provided guidance on redesignations in the 
General Preamble for the Implementation of Title I of the CAA 
Amendments of 1990 (57 FR 13498) and supplemented this guidance on 
April 28, 1992 (57 FR 18070). EPA has provided further guidance on 
processing redesignation requests in the following documents:
    1. ``Ozone and Carbon Monoxide Design Value Calculations,'' 
Memorandum from Bill Laxton. Director, Technical Support Division, June 
18, 1990;
    2. ``Maintenance Plans for Redesignation of Ozone and Carbon 
Monoxide Nonattainment Areas,'' Memorandum from G.T. Helms, Chief, 
Ozone/Carbon Monoxide Programs Branch, April 30, 1992;
    3. ``Contingency Measures for Ozone and Carbon Monoxide (CO) 
Redesignations,'' Memorandum from G.T. Helms, Chief, Ozone/Carbon 
Monoxide Programs Branch, June 1, 1992;
    4. ``Procedures for Processing Requests to Redesignate Areas to 
Attainment,'' Memorandum from John Calcagni, Director, Air Quality 
Management Division, September 4, 1992 (the ``Calcagni Memorandum'');
    5. ``State Implementation Plan (SIP) Actions Submitted in Response 
to Clean Air Act (CAA) Deadlines,'' Memorandum from John Calcagni, 
Director, Air Quality Management Division, October 28, 1992;
    6. ``Technical Support Documents (TSDs) for Redesignation of Ozone 
and Carbon Monoxide (CO) Nonattainment Areas,'' Memorandum from G.T. 
Helms, Chief, Ozone/Carbon Monoxide Programs Branch, August 17, 1993;
    7. ``State Implementation Plan (SIP) Requirements for Areas 
Submitting Requests for Redesignation to Attainment of the Ozone and 
Carbon Monoxide (CO) National Ambient Air Quality Standards (NAAQS) On 
or After November 15, 1992,'' Memorandum from Michael H. Shapiro, 
Acting Assistant Administrator for Air and Radiation, September 17, 
1993;
    8. ``Use of Actual Emissions in Maintenance Demonstrations for 
Ozone and CO Nonattainment Areas,'' Memorandum from D. Kent Berry, 
Acting Director, Air Quality Management Division, November 30, 1993;
    9. ``Part D New Source Review (Part D NSR) Requirements for Areas 
Requesting Redesignation to Attainment,'' Memorandum from Mary D. 
Nichols, Assistant Administrator for Air and Radiation, October 14, 
1994; and
    10. ``Reasonable Further Progress, Attainment Demonstration, and 
Related Requirements for Ozone Nonattainment Areas Meeting the Ozone 
National Ambient Air Quality Standard,'' Memorandum from John S. Seitz, 
Director, Office of Air Quality Planning and Standards, May 10, 1995.

IV. What is EPA's analysis of Ohio's redesignation request?

A. Has the Columbus area attained the 2008 8-hour ozone NAAQS?

    For redesignation of a nonattainment area to attainment, the CAA 
requires EPA to determine that the area has attained the applicable 
NAAQS (CAA section 107(d)(3)(E)(i)). An area is attaining the 2008 
ozone NAAQS if it meets the 2008 ozone NAAQS, as determined in 
accordance with 40 CFR 50.15 and appendix P of part 50, based on three 
complete, consecutive calendar years of quality-assured air quality 
data for all monitoring sites in the area. To attain the NAAQS, the 
three-year average of the annual fourth-highest daily maximum 8-hour 
average ozone concentrations (ozone design values) at each monitor must 
not exceed 0.075 ppm. The air quality data must be collected and 
quality-assured in accordance with 40 CFR part 58 and recorded in EPA's 
Air Quality System (AQS). Ambient air quality monitoring data for the 
3-year period must also meet data completeness requirements. An ozone 
design value is valid if daily maximum 8-hour average concentrations 
are available for at least 90 percent of the days within the ozone 
monitoring seasons,\2\ on average, for the three-year period, with a 
minimum data completeness of 75 percent during the ozone monitoring 
season of any year during the three-year period. See section 2.3 of 
appendix P to 40 CFR part 50.
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    \2\ The ozone season is defined by state in 40 CFR 58 appendix 
D. For the 2012-2014 and 2013-2015 time periods, the ozone season 
for Ohio was April-October. Beginning in 2016, the ozone season for 
Ohio is March-October. See, 80 FR 65292, 65466-67 (October 26, 
2015).
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    On May 4, 2016, in accordance with section 181(b)(2)(A) of the CAA 
and the provisions of the SIP Requirements Rule (40 CFR 51.1103), EPA 
made a determination that the Columbus area attained the standard by 
its July 20, 2015 attainment date for the 2008 ozone NAAQS. This 
determination was based upon 3 years of complete, quality-assured and 
certified data for the 2012-2014 time period. In addition, EPA has 
reviewed the available ozone monitoring data from monitoring sites in 
the Columbus area for the 2013-2015 time period. These data have been 
quality assured, are recorded in the AQS, and have been certified. 
These data demonstrate that the Columbus area is attaining the 2008 
ozone NAAQS. The annual fourth-highest 8-hour ozone concentrations and 
the 3-year average of these concentrations (monitoring site ozone 
design values) for each monitoring site are summarized in Table 1.

[[Page 66581]]



   Table 1--Annual 4th High Daily Maximum 8-Hour Ozone Concentrations and 3-Year Average of the 4th High Daily
                            Maximum 8-Hour Ozone Concentrations for the Columbus Area
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                                                                      2013  4th  2014  4th  2015  4th  2013-2015
                        County                             Monitor       high       high       high      Average
                                                                        (ppm)      (ppm)      (ppm)      (ppm)
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Delaware..............................................   39-041-0002      0.070      0.066      0.068      0.068
Franklin..............................................   39-049-0029      0.073      0.070      0.071      0.071
                                                         39-049-0037      0.070      0.069      0.064      0.067
                                                         39-049-0081      0.070      0.069      0.063      0.065
Knox..................................................   39-083-0002      0.067      0.066      0.071      0.068
Licking...............................................   39-089-0005      0.065      0.066      0.068      0.066
Madison...............................................   39-097-0007      0.066      0.069      0.069      0.068
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    The 3-year ozone design value for 2013-2015 is 0.071 ppm,\3\ which 
meets the 2008 ozone NAAQS. Therefore, in today's action, EPA proposes 
to determine that the Columbus area is attaining the 2008 ozone NAAQS.
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    \3\ The monitor ozone design value for the monitor with the 
highest 3-year averaged concentration.
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    EPA will not take final action to determine that the Columbus area 
is attaining the NAAQS nor to approve the redesignation of this area if 
the design value of a monitoring site in the area exceeds the NAAQS 
after proposal but prior to final approval of the redesignation. 
Preliminary 2016 data indicate that this area continues to attain the 
2008 ozone NAAQS. As discussed in section IV.D.3. below, Ohio EPA has 
committed to continue monitoring ozone in this area to verify 
maintenance of the ozone standard.

B. Has Ohio met all applicable requirements of section 110 and part D 
of the CAA for the Columbus area, and does Ohio have a fully approved 
SIP for the area under section 110(k) of the CAA?

    As criteria for redesignation of an area from nonattainment to 
attainment of a NAAQS, the CAA requires EPA to determine that the state 
has met all applicable requirements under section 110 and part D of 
title I of the CAA (see section 107(d)(3)(E)(v) of the CAA) and that 
the state has a fully approved SIP under section 110(k) of the CAA (see 
section 107(d)(3)(E)(ii) of the CAA). EPA proposes to find that Ohio 
has a fully approved SIP under section 110(k) of the CAA. Additionally, 
EPA proposes to find that the Ohio SIP satisfies the criterion that it 
meet applicable SIP requirements, for purposes of redesignation, under 
section 110 and part D of title I of the CAA (requirements specific to 
nonattainment areas for the 2008 ozone NAAQS). In making these proposed 
determinations, EPA ascertained which CAA requirements are applicable 
to the Columbus area and the Ohio SIP and, if applicable, whether the 
required Ohio SIP elements are fully approved under section 110(k) and 
part D of the CAA. As discussed more fully below, SIPs must be fully 
approved only with respect to currently applicable requirements of the 
CAA.
    The September 4, 1992 Calcagni memorandum (see ``Procedures for 
Processing Requests to Redesignate Areas to Attainment,'' Memorandum 
from John Calcagni, Director, Air Quality Management Division, 
September 4, 1992) describes EPA's interpretation of section 
107(d)(3)(E) of the CAA. Under this interpretation, a state and the 
area it wishes to redesignate must meet the relevant CAA requirements 
that are due prior to the state's submittal of a complete redesignation 
request for the area. See also the September 17, 1993, Michael Shapiro 
memorandum and 60 FR 12459, 12465-66 (March 7, 1995) (redesignation of 
Detroit-Ann Arbor, Michigan to attainment of the 1-hour ozone NAAQS). 
Applicable requirements of the CAA that come due subsequent to the 
state's submittal of a complete request remain applicable until a 
redesignation to attainment is approved, but are not required as a 
prerequisite to redesignation. See section 175A(c) of the CAA. Sierra 
Club v. EPA, 375 F.3d 537 (7th Cir. 2004). See also 68 FR 25424, 25427 
(May 12, 2003) (redesignation of the St. Louis/East St. Louis area to 
attainment of the 1-hour ozone NAAQS).
1. Ohio Has Met All Applicable Requirements of Section 110 and Part D 
of the CAA Applicable to the Columbus Area for Purposes of 
Redesignation
a. Section 110 General Requirements for Implementation Plans
    Section 110(a)(2) of the CAA delineates the general requirements 
for a SIP. Section 110(a)(2) provides that the SIP must have been 
adopted by the state after reasonable public notice and hearing, and 
that, among other things, it must: (1) Include enforceable emission 
limitations and other control measures, means or techniques necessary 
to meet the requirements of the CAA; (2) provide for establishment and 
operation of appropriate devices, methods, systems and procedures 
necessary to monitor ambient air quality; (3) provide for 
implementation of a source permit program to regulate the modification 
and construction of stationary sources within the areas covered by the 
plan; (4) include provisions for the implementation of part C 
prevention of significant deterioration (PSD) and part D new source 
review (NSR) permit programs; (5) include provisions for stationary 
source emission control measures, monitoring, and reporting; (6) 
include provisions for air quality modeling; and, (7) provide for 
public and local agency participation in planning and emission control 
rule development.
    Section 110(a)(2)(D) of the CAA requires SIPs to contain measures 
to prevent sources in a state from significantly contributing to air 
quality problems in another state. To implement this provision, EPA has 
required certain states to establish programs to address transport of 
certain air pollutants, e.g., NOX SIP call.\4\ However, like 
many of the 110(a)(2) requirements, the section 110(a)(2)(D) SIP 
requirements are not linked with a particular area's ozone designation 
and classification. EPA concludes that the SIP requirements linked with 
the area's ozone designation and classification are

[[Page 66582]]

the relevant measures to evaluate when reviewing a redesignation 
request for the area. The section 110(a)(2)(D) requirements, where 
applicable, continue to apply to a state regardless of the designation 
of any one particular area within the state. Thus, we believe these 
requirements are not applicable requirements for purposes of 
redesignation. See 65 FR 37890 (June 15, 2000), 66 FR 50399 (October 
19, 2001), 68 FR 25418, 25426-27 (May 13, 2003).
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    \4\ On October 27, 1992 (63 FR 57356), EPA issued a 
NOX SIP call requiring the District of Columbia and 22 
states to reduce emissions of NOX in order to reduce the 
transport of ozone and ozone precursors. In compliance with EPA's 
NOX SIP call, Ohio developed rules governing the control 
of NOX emissions from Electric Generating Units (EGUs), 
major non-EGU industrial boilers and turbines, and major cement 
kilns. EPA approved Ohio's rules as fulfilling Phase I of the 
NOX SIP Call on August 5, 2003 (68 FR 46089) and June 27, 
2005 (70 FR 36845), and as meeting Phase II of the NOX 
SIP Call on February 4, 2008 (73 FR 6427).
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    In addition, EPA believes that other section 110 elements that are 
neither connected with nonattainment plan submissions nor linked with 
an area's ozone attainment status are not applicable requirements for 
purposes of redesignation. The area will still be subject to these 
requirements after the area is redesignated to attainment of the 2008 
ozone NAAQS. The section 110 and part D requirements which are linked 
with a particular area's designation and classification are the 
relevant measures to evaluate in reviewing a redesignation request. 
This approach is consistent with EPA's existing policy on applicability 
(i.e., for redesignations) of conformity and oxygenated fuels 
requirements, as well as with section 184 ozone transport requirements. 
See Reading, Pennsylvania proposed and final rulemakings, 61 FR 53174-
53176 (October 10, 1996) and 62 FR 24826 (May 7, 1997); Cleveland-
Akron-Loraine, Ohio final rulemaking, 61 FR 20458 (May 7, 1996); and 
Tampa, Florida final rulemaking, 60 FR 62748 (December 7, 1995). See 
also the discussion of this issue in the Cincinnati, Ohio ozone 
redesignation (65 FR 37890, June 19, 2000), and the Pittsburgh, 
Pennsylvania ozone redesignation (66 FR 50399, October 19, 2001).
    We have reviewed Ohio's SIP and have concluded that it meets the 
general SIP requirements under section 110 of the CAA, to the extent 
those requirements are applicable for purposes of redesignation. On 
October 16, 2014 (79 FR 62019), EPA approved elements of the SIP 
submitted by Ohio to meet the requirements of section 110 for the 2008 
ozone standard. The requirements of section 110(a)(2), however, are 
statewide requirements that are not linked to the 8-hour ozone 
nonattainment status of the Columbus area. Therefore, EPA concludes 
that these infrastructure requirements are not applicable requirements 
for purposes of review of the state's 8-hour ozone redesignation 
request.
b. Part D Requirements
    Section 172(c) of the CAA sets forth the basic requirements of air 
quality plans for states with nonattainment areas that are required to 
submit them pursuant to section 172(b). Subpart 2 of part D, which 
includes section 182 of the CAA, establishes specific requirements for 
ozone nonattainment areas depending on the areas' nonattainment 
classifications.
    The Columbus area was classified as marginal under subpart 2 for 
the 2008 ozone NAAQS. As such, the area is subject to the subpart 1 
requirements contained in section 172(c) and section 176. Similarly, 
the area is subject to the subpart 2 requirements contained in section 
182(a) (marginal nonattainment area requirements). A thorough 
discussion of the requirements contained in section 172(c) and 182 can 
be found in the General Preamble for Implementation of Title I (57 FR 
13498).
i. Subpart 1 Section 172 Requirements
    As provided in subpart 2, for marginal ozone nonattainment areas 
such as the Columbus area, the specific requirements of section 182(a) 
apply in lieu of the attainment planning requirements that would 
otherwise apply under section 172(c), including the attainment 
demonstration and reasonably available control measures (RACM) under 
section 172(c)(1), reasonable further progress (RFP) under section 
172(c)(2), and contingency measures under section 172(c)(9). 42 U.S.C. 
7511a(a).
    Section 172(c)(3) requires submission and approval of a 
comprehensive, accurate and current inventory of actual emissions. This 
requirement is superseded by the inventory requirement in section 
182(a)(1) discussed below.
    Section 172(c)(4) requires the identification and quantification of 
allowable emissions for major new and modified stationary sources in an 
area, and section 172(c)(5) requires source permits for the 
construction and operation of new and modified major stationary sources 
anywhere in the nonattainment area. EPA approved Ohio's NSR program on 
January 10, 2003 (68 FR 1366) and February 25, 2010 (75 FR 8496). 
Nonetheless, EPA has determined that, since PSD requirements will apply 
after redesignation, areas being redesignated need not comply with the 
requirement that a NSR program be approved prior to redesignation, 
provided that the area demonstrates maintenance of the NAAQS without 
part D NSR. A more detailed rationale for this view is described in a 
memorandum from Mary Nichols, Assistant Administrator for Air and 
Radiation, dated October 14, 1994, entitled, ``Part D New Source Review 
Requirements for Areas Requesting Redesignation to Attainment.'' Ohio 
has demonstrated that the Columbus area will be able to maintain the 
standard without part D NSR in effect; therefore, EPA concludes that 
the state need not have a fully approved part D NSR program prior to 
approval of the redesignation request. See rulemakings for Detroit, 
Michigan (60 FR 12467-12468, March 7, 1995); Cleveland-Akron-Lorain, 
Ohio (61 FR 20458, 20469-20470, May 7, 1996); Louisville, Kentucky (66 
FR 53665, October 23, 2001); and Grand Rapids, Michigan (61 FR 31834-
31837, June 21, 1996). Ohio's PSD program will become effective in the 
Columbus area upon redesignation to attainment. EPA approved Ohio's PSD 
program on January 22, 2003 (68 FR 2909) and February 25, 2010 (75 FR 
8496).
    Section 172(c)(6) requires the SIP to contain control measures 
necessary to provide for attainment of the NAAQS. Because attainment 
has been reached, no additional measures are needed to provide for 
attainment.
    Section 172(c)(7) requires the SIP to meet the applicable 
provisions of section 110(a)(2). As noted above, we believe the Ohio 
SIP meets the requirements of section 110(a)(2) for purposes of 
redesignation.
ii. Section 176 Conformity Requirements
    Section 176(c) of the CAA requires states to establish criteria and 
procedures to ensure that Federally supported or funded projects 
conform to the air quality planning goals in the applicable SIP. The 
requirement to determine conformity applies to transportation plans, 
programs and projects that are developed, funded or approved under 
title 23 of the United States Code (U.S.C.) and the Federal Transit Act 
(transportation conformity) as well as to all other Federally supported 
or funded projects (general conformity). State transportation 
conformity SIP revisions must be consistent with Federal conformity 
regulations relating to consultation, enforcement and enforceability 
that EPA promulgated pursuant to its authority under the CAA.
    EPA interprets the conformity SIP requirements \5\ as not applying 
for

[[Page 66583]]

purposes of evaluating a redesignation request under section 107(d) 
because state conformity rules are still required after redesignation 
and Federal conformity rules apply where state conformity rules have 
not been approved. See Wall v. EPA, 265 F.3d 426 (6th Cir. 2001) 
(upholding this interpretation); see also 60 FR 62748 (December 7, 
1995) (redesignation of Tampa, Florida). Nonetheless, Ohio has an 
approved conformity SIP for the Columbus area. See 80 FR 11133 (March 
2, 2015).
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    \5\ CAA section 176(c)(4)(E) requires states to submit revisions 
to their SIPs to reflect certain Federal criteria and procedures for 
determining transportation conformity. Transportation conformity 
SIPs are different from SIPs requiring the development of Motor 
Vehicle Emission Budgets (MVEBs), such as control strategy SIPs and 
maintenance plans.
---------------------------------------------------------------------------

iii. Section 182(a) Requirements
    Section 182(a)(1) requires states to submit a comprehensive, 
accurate, and current inventory of actual emissions from sources of VOC 
and NOX emitted within the boundaries of the ozone 
nonattainment area. Ohio EPA submitted a 2008 base year emissions 
inventory for the Columbus area on July 18, 2014. EPA approved this 
emissions inventory as a revision to the Ohio SIP on March 10, 2016 (81 
FR 12591).
    Under section 182(a)(2)(A), states with ozone nonattainment areas 
that were designated prior to the enactment of the 1990 CAA amendments 
were required to submit, within six months of classification, all rules 
and corrections to existing VOC reasonably available control technology 
(RACT) rules that were required under section 172(b)(3) prior to the 
1990 CAA amendments. The Columbus area is not subject to the section 
182(a)(2) RACT ``fix up'' requirement for the 2008 ozone NAAQS because 
it was designated as nonattainment for this standard after the 
enactment of the 1990 CAA amendments and because Ohio complied with 
this requirement for the Columbus area under the prior 1-hour ozone 
NAAQS. See 59 FR 23796 (May 9, 1994) and 60 FR 15235 (March 23, 1995).
    Section 182(a)(2)(B) requires each state with a marginal ozone 
nonattainment area that implemented or was required to implement a 
vehicle inspection and maintenance (I/M) program prior to the 1990 CAA 
amendments to submit a SIP revision for an I/M program no less 
stringent than that required prior to the 1990 CAA amendments or 
already in the SIP at the time of the CAA amendments, whichever is more 
stringent. For the purposes of the 2008 ozone standard and the 
consideration of Ohio's redesignation request for this standard, the 
Columbus area is not subject to the section 182(a)(2)(B) requirement 
because the Columbus area was designated as nonattainment for the 2008 
ozone standard after the enactment of the 1990 CAA amendments.
    Regarding the source permitting and offset requirements of section 
182(a)(2)(C) and section 182(a)(4), Ohio currently has a fully-approved 
part D NSR program in place. EPA approved Ohio's PSD program on January 
22, 2003 (68 FR 2909) and February 25, 2010 (75 FR 8496). As discussed 
above, Ohio has demonstrated that the Columbus area will be able to 
maintain the standard without part D NSR in effect; therefore, EPA 
concludes that the state need not have a fully approved part D NSR 
program prior to approval of the redesignation request. The state's PSD 
program will become effective in the Columbus area upon redesignation 
to attainment.
    Section 182(a)(3) requires states to submit periodic emission 
inventories and a revision to the SIP to require the owners or 
operators of stationary sources to annually submit emission statements 
documenting actual VOC and NOX emissions. As discussed below 
in section IV.D.4. of this proposed rule, Ohio will continue to update 
its emissions inventory at least once every three years. With regard to 
stationary source emission statements, EPA approved Ohio's emission 
statement rule on September 27, 2007 (72 FR 54844). On July 18, 2014, 
Ohio certified that this approved SIP regulation remains in place and 
remains enforceable for the 2008 ozone standard. EPA approved Ohio's 
certification on March 10, 2016 (81 FR 12591).
    The Columbus area has satisfied all applicable requirements for 
purposes of redesignation under section 110 and part D of title I of 
the CAA.
2. The Columbus Area Has a Fully Approved SIP for Purposes of 
Redesignation Under Section 110(k) of the CAA
    Ohio has adopted and submitted and EPA has approved at various 
times, provisions addressing the various SIP elements applicable for 
the ozone NAAQS. As discussed above, EPA has fully approved the Ohio 
SIP for the Columbus area under section 110(k) for all requirements 
applicable for purposes of redesignation under the 2008 ozone NAAQS. 
EPA may rely on prior SIP approvals in approving a redesignation 
request (see the Calcagni memorandum at page 3; Southwestern 
Pennsylvania Growth Alliance v. Browner, 144 F.3d 984, 989-990 (6th 
Cir. 1998); Wall v. EPA, 265 F.3d 426), plus any additional measures it 
may approve in conjunction with a redesignation action (see 68 FR 25426 
(May 12, 2003) and citations therein).

C. Are the air quality improvements in the Columbus area due to 
permanent and enforceable emission reductions?

    To support the redesignation of an area from nonattainment to 
attainment, section 107(d)(3)(E)(iii) of the CAA requires EPA to 
determine that the air quality improvement in the area is due to 
permanent and enforceable reductions in emissions resulting from the 
implementation of the SIP and applicable Federal air pollution control 
regulations and other permanent and other permanent and enforceable 
emission reductions. EPA has determined that Ohio has demonstrated that 
that the observed ozone air quality improvement in the Columbus area is 
due to permanent and enforceable reductions in VOC and NOX 
emissions resulting from state measures adopted into the SIP and 
Federal measures.
    In making this demonstration, the state has calculated the change 
in emissions between 2011 and 2014. The reduction in emissions and the 
corresponding improvement in air quality over this time period can be 
attributed to a number of regulatory control measures that the Columbus 
area and upwind areas have implemented in recent years. In addition, 
Ohio EPA provided an analysis to demonstrate the improvement in air 
quality was not due to unusually favorable meteorology. Based on the 
information summarized below, Ohio has adequately demonstrated that the 
improvement in air quality is due to permanent and enforceable 
emissions reductions.
1. Permanent and Enforceable Emission Controls Implemented
a. Regional NOX Controls
    Clean Air Interstate Rule (CAIR)/Cross State Air Pollution Rule 
(CSAPR). CAIR created regional cap-and-trade programs to reduce sulfur 
dioxide (SO2) and NOX emissions in 27 eastern 
states, including Ohio, that contributed to downwind nonattainment and 
maintenance of the 1997 8-hour ozone NAAQS and the 1997 fine 
particulate matter (PM2.5) NAAQS. See 70 FR 25162 (May 12, 
2005). EPA approved Ohio's CAIR regulations into the Ohio SIP on 
February 1, 2008 (73 FR 6034), and September 25, 2009 (74 FR 48857). In 
2008, the United States Court of Appeals for the District of Columbia 
Circuit (D.C. Circuit) initially vacated CAIR, North Carolina v. EPA, 
531 F.3d

[[Page 66584]]

896 (D.C. Cir. 2008), but ultimately remanded the rule to EPA without 
vacatur to preserve the environmental benefits provided by CAIR, North 
Carolina v. EPA, 550 F.3d 1176, 1178 (D.C. Cir. 2008). On August 8, 
2011 (76 FR 48208), acting on the D.C. Circuit's remand, EPA 
promulgated CSAPR to replace CAIR and thus to address the interstate 
transport of emissions contributing to nonattainment and interfering 
with maintenance of the two air quality standards covered by CAIR as 
well as the 2006 PM2.5 NAAQS. CSAPR requires substantial 
reductions of SO2 and NOX emissions from electric 
generating units (EGUs) in 28 states in the Eastern United States.
    The D.C. Circuit's initial vacatur of CSAPR \6\ was reversed by the 
United States Supreme Court on April 29, 2014, and the case was 
remanded to the D.C. Circuit to resolve remaining issues in accordance 
with the high court's ruling. EPA v. EME Homer City Generation, L.P., 
134 S. Ct. 1584 (2014). On remand, the D.C. Circuit affirmed CSAPR in 
most respects, but invalidated without vacating some of the CSAPR 
budgets as to a number of states. EME Homer City Generation, L.P. v. 
EPA, 795 F.3d 118 (D.C. Cir. 2015). The remanded budgets include the 
Phase 2 NOX ozone season emissions budgets for Ohio. This 
litigation ultimately delayed implementation of CSAPR for three years, 
from January 1, 2012, when CSAPR's cap-and-trade programs were 
originally scheduled to replace the CAIR cap-and-trade programs, to 
January 1, 2015. Thus, the rule's Phase 2 budgets were originally 
promulgated to begin on January 1, 2014, and are now scheduled to begin 
on January 1, 2017. CSAPR will continue to operate under the existing 
emissions budgets until EPA addresses the D.C. Circuit's remand.
---------------------------------------------------------------------------

    \6\ EME Homer City Generation, L.P. v. EPA, 696 F.3d 7, 38 (D.C. 
Cir. 2012).
---------------------------------------------------------------------------

    While the reduction in NOX emissions from the 
implementation of CSAPR will result in lower concentrations of 
transported ozone entering the Columbus area throughout the maintenance 
period, EPA is proposing to approve the redesignation of the Columbus 
area without relying on those measures within Ohio as having led to 
attainment of the 2008 ozone NAAQS or contributing to maintenance of 
that standard. In so doing, we are proposing to determine that the D.C. 
Circuit's invalidation of the Ohio CSAPR Phase 2 ozone season 
NOX emissions budget does not bar today's proposed 
redesignation.
    The improvement in ozone air quality in the Columbus area from 2011 
(a year when the design value for the area was above the NAAQS) to 2014 
(a year when the design value was below the NAAQS) is not due to CSAPR 
emissions reductions because, as noted above, CSAPR did not go into 
effect until January 1, 2015, after the area was already attaining the 
standard. As a general matter, because CSAPR is CAIR's replacement, 
emissions reductions associated with CAIR will for most areas be made 
permanent and enforceable through implementation of CSAPR. In addition, 
there are no EGU sources in the Columbus area. Furthermore, as laid out 
in the State's maintenance demonstration, no EGUs are expected to 
locate in the area throughout the maintenance period.
    Given the particular facts and circumstances associated with the 
Columbus area, EPA does not believe that the D.C. Circuit's 
invalidation of Ohio's CSAPR Phase 2 NOX ozone season 
budget, which replaced CAIR's NOX ozone season budget, is a 
bar to EPA's redesignation of the Columbus area for the 2008 ozone 
NAAQS.

b. Federal Emission Control Measures

    Reductions in VOC and NOX emissions have occurred 
statewide and in upwind areas as a result of Federal emission control 
measures, with additional emission reductions expected to occur in the 
future. Federal emission control measures include the following.
    Tier 2 Emission Standards for Vehicles and Gasoline Sulfur 
Standards. On February 10, 2000 (65 FR 6698), EPA promulgated Tier 2 
motor vehicle emission standards and gasoline sulfur control 
requirements. These emission control requirements result in lower VOC 
and NOX emissions from new cars and light duty trucks, 
including sport utility vehicles. With respect to fuels, this rule 
required refiners and importers of gasoline to meet lower standards for 
sulfur in gasoline, which were phased in between 2004 and 2006. By 
2006, refiners were required to meet a 30 ppm average sulfur level, 
with a maximum cap of 80 ppm. This reduction in fuel sulfur content 
ensures the effectiveness of low emission-control technologies. The 
Tier 2 tailpipe standards established in this rule were phased in for 
new vehicles between 2004 and 2009. EPA estimates that, when fully 
implemented, this rule will cut NOX and VOC emissions from 
light-duty vehicles and light-duty trucks by approximately 76 and 28 
percent, respectively. NOX and VOC reductions from medium-
duty passenger vehicles included as part of the Tier 2 vehicle program 
are estimated to be approximately 37,000 and 9,500 tons per year, 
respectively, when fully implemented. In addition, EPA estimates that 
beginning in 2007, a reduction of 30,000 tons per year of 
NOX will result from the benefits of sulfur control on 
heavy-duty gasoline vehicles. Some of these emission reductions 
occurred by the attainment years and additional emission reductions 
will occur throughout the maintenance period, as older vehicles are 
replaced with newer, compliant model years.
    Tier 3 Emission Standards for Vehicles and Gasoline Sulfur 
Standards. On April 28, 2014 (79 FR 23414), EPA promulgated Tier 3 
motor vehicle emission and fuel standards to reduces both tailpipe and 
evaporative emissions and to further reduce the sulfur content in 
fuels. The rule will be phased in between 2017 and 2025. Tier 3 sets 
new tailpipe standards for the sum of VOC and NOX and for 
particulate matter. The VOC and NOX tailpipe standards for 
light-duty vehicles represent approximately an 80% reduction from 
today's fleet average and a 70% reduction in per-vehicle particulate 
matter (PM) standards. Heavy-duty tailpipe standards represent about a 
60% reduction in both fleet average VOC and NOX and per-
vehicle PM standards. The evaporative emissions requirements in the 
rule will result in approximately a 50 percent reduction from current 
standards and apply to all light-duty and onroad gasoline-powered 
heavy-duty vehicles. Finally, the rule lowers the sulfur content of 
gasoline to an annual average of 10 ppm by January 2017. While these 
reductions did not aid the area in attaining the standard, emission 
reductions will occur during the maintenance period.
    Heavy-Duty Diesel Engine Rules. In July 2000, EPA issued a rule for 
on-highway heavy-duty diesel engines that includes standards limiting 
the sulfur content of diesel fuel. Emissions standards for 
NOX, VOC and PM were phased in between model years 2007 and 
2010. In addition, the rule reduced the highway diesel fuel sulfur 
content to 15 parts per million by 2007, leading to additional 
reductions in combustion NOX and VOC emissions. EPA has 
estimated future year emission reductions due to implementation of this 
rule. Nationally, EPA estimated that 2015 NOX and VOC 
emissions would decrease by 1,260,000 tons and 54,000 tons, 
respectively. Nationally, EPA estimated that 2030 NOX and 
VOC emissions will decrease by 2,570,000 tons and 115,000 tons, 
respectively. As projected by these estimates and demonstrated in the 
on-road emission modeling for the Columbus area, some

[[Page 66585]]

of these emission reductions occurred by the attainment years and 
additional emission reductions will occur throughout the maintenance 
period, as older vehicles are replaced with newer, compliant model 
years.
    Nonroad Diesel Rule. On June 29, 2004 (69 FR 38958), EPA issued a 
rule adopting emissions standards for nonroad diesel engines and sulfur 
reductions in nonroad diesel fuel. This rule applies to diesel engines 
used primarily in construction, agricultural, and industrial 
applications. Emission standards are phased in for 2008 through 2015 
model years based on engine size. The SO2 limits for nonroad 
diesel fuels were phased in from 2007 through 2012. EPA estimates that 
when fully implemented, compliance with this rule will cut 
NOX emissions from these nonroad diesel engines by 
approximately 90 percent. Some of these emission reductions occurred by 
the attainment years and additional emission reductions will occur 
throughout the maintenance period.
    Nonroad Spark-Ignition Engines and Recreational Engine Standards. 
On November 8, 2002 (67 FR 68242), EPA adopted emission standards for 
large spark-ignition engines such as those used in forklifts and 
airport ground-service equipment; recreational vehicles such as off-
highway motorcycles, all-terrain vehicles, and snowmobiles; and 
recreational marine diesel engines. These emission standards are phased 
in from model year 2004 through 2012. When fully implemented, EPA 
estimates an overall 72 percent reduction in VOC emissions from these 
engines and an 80 percent reduction in NOX emissions. Some 
of these emission reductions occurred by the attainment years and 
additional emission reductions will occur throughout the maintenance 
period.
    National Emission Standards for Hazardous Air Pollutants (NESHAP) 
for Reciprocating Internal Combustion Engines. On March 3, 2010 (75 FR 
9648), EPA issued a rule to reduce hazardous air pollutants from 
existing diesel powered stationary reciprocating internal combustion 
engines, also known as compression ignition engines. Amendments to this 
rule were finalized on January 14, 2013 (78 FR 6674). EPA estimated 
that when this rule is fully implemented in 2013, NOX and 
VOC emissions from these engines will be reduced by approximately 9,600 
and 36,000 tons per year, respectively.
    Category 3 Marine Diesel Engine Standards. On April 30, 2010 (75 FR 
22896) EPA issued emission standards for marine compression-ignition 
engines at or above 30 liters per cylinder. Tier 2 emission standards 
apply beginning in 2011, and are expected to result in a 15 to 25 
percent reduction in NOX emissions from these engines. Final 
Tier 3 emission standards apply beginning in 2016 and are expected to 
result in approximately an 80 percent reduction in NOX from 
these engines. Some of these emission reductions occurred by the 
attainment years and additional emission reductions will occur 
throughout the maintenance period.
    Oil and Natural Gas Industry Standards. On August 16, 2012 (77 FR 
49490) EPA finalized several rules that apply to the oil and natural 
gas sector. These rule set standards for natural gas wells that are 
hydraulically fractured along with several other sources in the oil and 
natural gas sector. When these rules are fully implemented in 2015, EPA 
estimates nationally that VOC emissions will be reduced by 190,000 to 
290,000 tons annually.
c. Control Measures Specific to the Columbus Area
    While there are no EGUs in the Columbus area, the Picway Power 
Plant is located in Pickaway County, approximately 1.25 kilometers from 
the southern border of Franklin County. This plant permanently shut 
down in May of 2015. The coal-fired boiler did not operate in 2014 and 
between 2011 and 2013 NOX emissions dropped from 0.57 tons 
per summer day (TPSD) in 2011 to 0.45 TPSD in 2013.
2. Emission Reductions
    Ohio is using a 2011 inventory as the nonattainment base year. 
Area, nonroad mobile, airport related emissions (AIR), and point source 
emissions (EGUs and non-EGUs) were collected from the Ozone NAAQS 
Implementation Modeling platform (2011v6.1). For 2011, this represents 
actual data Ohio reported to EPA for the 2011 National Emissions 
inventory (NEI). Because emissions from state inventory databases, the 
NEI, and the Ozone NAAQS Emissions Modeling platform are annual totals, 
tons per summer day were derived according to EPA's guidance document 
``Temporal Allocation of Annual Emissions Using EMCH Temporal 
Profiles'' dated April 29 2002, using the temporal allocation 
references accompanying the 2011v6.1 modeling inventory files. Onroad 
mobile source emissions were developed in conjunction with the Ohio 
EPA, the Ohio Department of Transportation, the Mid-Ohio Regional 
Planning Commission (MORPC), and the Licking County Area Transportation 
(LCAT) and were calculated from emission factors produced by EPA's 
Motor Vehicle Emission Simulator (MOVES) model and data extracted from 
the region's travel-demand model.
    For the attainment inventory, Ohio is using 2014, one of the years 
the Columbus area monitored attainment of the 2008 ozone standard. 
Because the 2014 NEI inventory was not available at the time Ohio EPA 
was compiling the redesignation request, the state was unable to use 
the 2014 NEI inventory directly. For area, nonroad mobile, and AIR, 
2014 emissions were derived by interpolating between 2011 and 2018 
Ozone NAAQS Emissions Modeling platform inventories. The point source 
sector for the 2014 inventory was developed using actual 2014 point 
source emissions reported to the state database, which serve as the 
basis for the point source emissions reported to EPA for the NEI. 
Summer day inventories were derived for these sectors using the 
methodology described above. Finally, onroad mobile source emissions 
were developed using the same methodology described above for the 2011 
inventory.
    Using the inventories described above, Ohio's submittal documents 
changes in VOC and NOX emissions from 2011 to 2014 for the 
Columbus area. Emissions data are shown in Tables 2 through 6.

                                         Table 2--Columbus Area NOX Emissions for Nonattainment Year 2011 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                         County                                Point            AIR           Nonroad          Area           Onroad           Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Delaware................................................            0.08            0.01            4.39            2.82           16.26           23.56
Fairfield...............................................            4.52            0.00            2.79            0.75            9.54           17.60
Franklin................................................            2.65            1.48           16.12            8.76          134.04          163.05
Knox....................................................            0.08            0.00            1.36            0.50            2.90            4.84
Licking.................................................            1.30            0.00            2.57            0.98           17.45           22.30
Madison.................................................            0.01            0.00            1.66            0.62            7.09            9.38
                                                         -----------------------------------------------------------------------------------------------

[[Page 66586]]

 
    Area Totals.........................................            8.64            1.49           28.89           14.43          187.28          240.73
--------------------------------------------------------------------------------------------------------------------------------------------------------


                                         Table 3--Columbus Area VOC Emissions for Nonattainment Year 2011 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                         County                                Point            AIR           Nonroad          Area           Onroad           Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Delaware................................................            0.34            0.01            3.31            4.37            7.14           15.17
Fairfield...............................................            0.49            0.01            1.25            4.71            4.82           11.28
Franklin................................................            3.06            0.35           11.76           28.36           70.65          114.18
Knox....................................................            0.20            0.01            0.97            3.42            1.36            5.96
Licking.................................................            0.45            0.01            2.17            6.65            8.03           17.31
Madison.................................................            0.06            0.01            0.82            2.50            2.83            6.22
                                                         -----------------------------------------------------------------------------------------------
    Area Totals.........................................            4.60            0.40           20.28           50.01           94.83          170.12
--------------------------------------------------------------------------------------------------------------------------------------------------------


                                          Table 4--Columbus Area NOX Emissions for Attainment Year 2014 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                         County                                Point            AIR           Nonroad          Area           Onroad           Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Delaware................................................            0.07            0.01            3.45            2.67           11.76           17.96
Fairfield...............................................            3.99            0.00            2.20            0.76            7.19           14.14
Franklin................................................            1.36            1.59           12.49            8.58           98.88          122.90
Knox....................................................            0.12            0.00            1.11            0.51            2.18            3.92
Licking.................................................            0.93            0.00            2.05            1.00           13.33           17.31
Madison.................................................            0.01            0.00            1.38            0.60            5.31            7.30
                                                         -----------------------------------------------------------------------------------------------
    Area Totals.........................................            6.48            1.60           22.68           14.12          138.65          183.53
--------------------------------------------------------------------------------------------------------------------------------------------------------


                                          Table 5--Columbus Area VOC Emissions for Attainment Year 2014 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                         County                                Point            AIR           Nonroad          Area           Onroad           Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Delaware................................................            0.36            0.01            2.86            4.27            5.00           12.50
Fairfield...............................................            0.42            0.01            1.08            4.65            3.12            9.28
Franklin................................................            2.22            0.37           10.28           27.81           50.81           91.49
Knox....................................................            0.19            0.01            0.82            3.39            1.02            5.43
Licking.................................................            0.69            0.01            1.85            6.57            6.00           15.12
Madison.................................................            0.14            0.01            0.71            2.46            2.11            5.43
                                                         -----------------------------------------------------------------------------------------------
    Area Totals.........................................            4.02            0.42           17.60           49.15           68.06          139.25
--------------------------------------------------------------------------------------------------------------------------------------------------------


                               Table 6--Change in NOX and VOC Emissions in the Columbus Area Between 2011 and 2014 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                NOX                                             VOC
                                                         -----------------------------------------------------------------------------------------------
                                                                                            Net change                                      Net change
                                                               2011            2014         (2011-2014)        2011            2014         (2011-2014)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Point...................................................            8.64            6.48           -2.16            4.60            4.02           -0.58
AIR.....................................................            1.49            1.60            0.11            0.40            0.42            0.02
Nonroad.................................................           28.89           22.68           -6.21           20.28           17.60           -2.68
Area....................................................           14.43           14.12           -0.31           50.01           49.15           -0.86
Onroad..................................................          187.28          138.65          -48.63           94.83           68.06          -26.77
                                                         -----------------------------------------------------------------------------------------------
    Total...............................................          240.73          183.53          -57.20          170.12          139.25          -30.87
--------------------------------------------------------------------------------------------------------------------------------------------------------

    As shown in Table 6, NOX and VOC emissions in the 
Columbus area declined by 57.20 TPSD and 30.87 TPSD, respectively, 
between 2011 and 2014.
3. Meteorology
    To further support Ohio's demonstration that the improvement in air 
quality between the year violations occurred and the year attainment 
was achieved, is due to permanent and enforceable emission reductions 
and not unusually favorable meteorology, an analysis was performed by 
Ohio EPA. Ohio analyzed the maximum fourth-high 8-hour ozone value for 
May, June, July, August, and September, for years 2000 to 2015.
    First, the maximum 8-hour ozone concentration at each monitor in 
the Columbus area was compared to the number of days where the maximum 
temperature was greater than or equal to 80 [deg]F. While there is a 
clear trend in decreasing ozone concentrations at all monitors, there 
is no such trend in the temperature data.

[[Page 66587]]

    Ohio EPA also examined the relationship between the average summer 
temperature for each year of the 2000-2015 period and the 4th maximum 
8-hour ozone concentration. While there is some correlation between 
average summer temperatures and ozone concentrations, this correlation 
does not exist over the study period. The linear regression lines for 
each data set demonstrate that the average summer temperatures have 
increased, while ozone concentrations have decreased. Because the 
correlation between temperature and ozone formation is well 
established, these data suggest that reductions in precursors are 
responsible for the reductions in ozone concentrations in the Columbus 
area, and not unusually favorable summer temperatures.
    Finally, Ohio EPA analyzed the relationship between average 
summertime relative humidity and average 4th maximum 8-hour ozone 
concentrations. The data did not show a correlation between relative 
humidity and ozone concentrations.
    Ohio EPA's analyses of meteorological variables associated with 
ozone formation further support Ohio's demonstration that the 
improvement in air quality in the Columbus area between the year 
violations occurred and the year attainment was achieved is due to 
permanent and enforceable emission reductions and not on unusually 
favorable meteorology.

D. Does Ohio have a fully approvable ozone maintenance plan for the 
Columbus area?

    As one of the criteria for redesignation to attainment section 
107(d)(3)(E)(iv) of the CAA requires EPA to determine that the area has 
a fully approved maintenance plan pursuant to section 175A of the CAA. 
Section 175A of the CAA sets forth the elements of a maintenance plan 
for areas seeking redesignation from nonattainment to attainment. Under 
section 175A, the maintenance plan must demonstrate continued 
attainment of the NAAQS for at least 10 years after the Administrator 
approves a redsignation to attainment. Eight years after the 
redesignation, the state must submit a revised maintenance plan which 
demonstrates that attainment of the NAAQS will continue for an 
additional 10 years beyond the initial 10 year maintenance period. To 
address the possibility of future NAAQS violations, the maintenance 
plan must contain contingency measures, as EPA deems necessary, to 
assure prompt correction of the future NAAQS violation.
    The Calcagni Memorandum provides further guidance on the content of 
a maintenance plan, explaining that a maintenance plan should address 
five elements: (1) An attainment emission inventory; (2) a maintenance 
demonstration; (3) a commitment for continued air quality monitoring; 
(4) a process for verification of continued attainment; and (5) a 
contingency plan. In conjunction with its request to redesignate the 
Columbus area to attainment for the 2008 ozone standard, Ohio EPA 
submitted a SIP revision to provide for maintenance of the 2008 ozone 
standard through 2030, more than 10 years after the expected effective 
date of the redesignation to attainment. As is discussed more fully 
below, EPA proposes to find that Ohio's ozone maintenance plan includes 
the necessary components and is proposing to approve the maintenance 
plan as a revision of the Ohio SIP.
1. Attainment Inventory
    EPA is proposing to determine that the Columbus area has attained 
the 2008 8-hour ozone NAAQS based on monitoring data for the period of 
2013-2015. Ohio EPA selected 2014 as the attainment emissions inventory 
year to establish attainment emission levels for VOC and 
NOX. The attainment emissions inventory identifies the 
levels of emissions in the Columbus area that are sufficient to attain 
the 2008 ozone NAAQS. The derivation of the attainment year emissions 
was discussed above in section IV.C.2. of this proposed rule. The 
attainment level emissions, by source category, are summarized in 
Tables 4 and 5 above.
2. Has the state documented maintenance of the ozone standard in the 
Columbus area?
    Ohio has demonstrated maintenance of the 2008 ozone standard 
through 2030 by assuring that current and future emissions of VOC and 
NOX for the Columbus area remain at or below attainment year 
emission levels. A maintenance demonstration need not be based on 
modeling. See Wall v. EPA, 265 F.3d 426 (6th Cir. 2001), Sierra Club v. 
EPA, 375 F.3d 537 (7th Cir. 2004). See also 66 FR 53094, 53099-53100 
(October 19, 2001), 68 FR 25413, 25430-25432 (May 12, 2003).
    Ohio is using emissions inventories for the years 2020 and 2030 to 
demonstrate maintenance. 2030 is more than 10 years after the expected 
effective date of the redesignation to attainment and 2020 was selected 
to demonstrate that emissions are not expected to spike in the interim 
between the attainment year and the final maintenance year. The 
emissions inventories were developed as described below.
    To develop the 2020 and 2030 inventories, the state collected data 
from the Ozone NAAQS Emissions Modeling platform (2011v6.1) inventories 
for years 2011, 2018 and 2025. 2020 emissions for area, nonroad mobile, 
AIR, and point source sectors were derived by interpolating between 
2018 and 2025. 2030 emissions for area, nonroad mobile, AIR, and point 
source sectors were derived using the TREND function in Excel. If the 
trend function resulted in a negative value the emissions were assumed 
not to change. Summer day inventories were derived for these sectors 
using the methodology described in section IV.C.2. above. Finally, 
onroad mobile source emissions were developed in using the same 
methodology described in section IV.C.2. above for the 2011 inventory. 
Emissions data are shown in Tables 7 through 11 below.

                                      Table 7--Columbus Area NOX Emissions for Interim Maintenance Year 2020 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                         County                                Point            AIR           Nonroad          Area           Onroad           Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Delaware................................................            0.08            0.01            2.16            2.35            7.79           12.39
Fairfield...............................................            4.39            0.00            1.38            0.76            4.73           11.26
Franklin................................................            2.44            1.85            7.73            8.20           60.59           80.81
Knox....................................................            0.08            0.00            0.73            0.52            1.46            2.79
Licking.................................................            1.31            0.00            1.31            1.02            8.57           12.21
Madison.................................................            0.01            0.00            0.94            0.56            3.42            4.93
                                                         -----------------------------------------------------------------------------------------------
    Area Totals.........................................            8.31            1.86           14.25           13.41           86.56          124.39
--------------------------------------------------------------------------------------------------------------------------------------------------------


[[Page 66588]]


                                      Table 8--Columbus Area VOC Emissions for Interim Maintenance Year 2020 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                         County                                Point            AIR           Nonroad          Area           Onroad           Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Delaware................................................            0.32            0.01            2.33            4.14            3.44           10.24
Fairfield...............................................            0.48            0.01            0.93            4.52            2.13            8.07
Franklin................................................            1.97            0.41            8.97           27.07           32.30           70.72
Knox....................................................            0.20            0.01            0.63            3.34            0.71            4.89
Licking.................................................            0.40            0.01            1.47            6.39            4.02           12.29
Madison.................................................            0.06            0.01            0.59            2.38            1.45            4.49
                                                         -----------------------------------------------------------------------------------------------
    Area Totals.........................................            3.43            0.46           14.92           47.84           44.05          110.70
--------------------------------------------------------------------------------------------------------------------------------------------------------


                                          Table 9--Columbus Area NOX Emissions for Maintenance Year 2030 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                         County                                Point            AIR           Nonroad          Area           Onroad           Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Delaware................................................            0.07            0.01            0.97            1.79            7.15            9.99
Fairfield...............................................            5.64            0.00            0.60            0.76            4.08           11.08
Franklin................................................            2.27            2.36            3.96            7.50           50.99           67.08
Knox....................................................            0.09            0.00            0.33            0.53            1.33            2.28
Licking.................................................            1.33            0.00            0.62            1.04            7.41           10.40
Madison.................................................            0.01            0.00            0.41            0.47            3.07            3.96
                                                         -----------------------------------------------------------------------------------------------
    Area Totals.........................................            9.41            2.37            6.89           12.09           74.03          104.79
--------------------------------------------------------------------------------------------------------------------------------------------------------


                                         Table 10--Columbus Area VOC Emissions for Maintenance Year 2030 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                         County                                Point            AIR           Nonroad          Area           Onroad           Total
--------------------------------------------------------------------------------------------------------------------------------------------------------
Delaware................................................            0.32            0.01            2.09            4.07            3.26            9.75
Fairfield...............................................            0.55            0.01            0.94            4.29            1.84            7.63
Franklin................................................            1.94            0.51            9.53           26.39           27.90           66.27
Knox....................................................            0.20            0.01            0.50            3.23            0.64            4.58
Licking.................................................            0.39            0.01            1.29            6.05            3.56           11.30
Madison.................................................            0.06            0.01            0.54            2.24            1.33            4.18
                                                         -----------------------------------------------------------------------------------------------
    Area Totals.........................................            3.46            0.56           14.89           46.27           38.53          103.71
--------------------------------------------------------------------------------------------------------------------------------------------------------


                               Table 11--Change in NOX and VOC Emissions in the Columbus Area Between 2014 and 2030 (TPSD)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                          NOX                                                 VOC
                                                 -------------------------------------------------------------------------------------------------------
                                                                                          Net change                                          Net change
                                                      2014         2020         2030     (2014-2030)      2014         2020         2030     (2014-2030)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Point...........................................         6.48         8.31         9.41         2.93         4.02         3.43         3.46        -0.56
AIR.............................................         1.60         1.86         2.37         0.77         0.42         0.46         0.56         0.14
Nonroad.........................................        22.68        14.25         6.89       -15.79        17.60        14.92        14.89        -2.71
Area............................................        14.12        13.41        12.09        -2.03        49.15        47.84        46.27        -2.88
Onroad..........................................       138.65        86.56        74.03       -64.62        68.06        44.05        38.53       -29.53
                                                 -------------------------------------------------------------------------------------------------------
    Total.......................................       183.53       124.39       104.79       -78.74       139.25       110.70       103.71       -35.54
--------------------------------------------------------------------------------------------------------------------------------------------------------

    In summary, the maintenance demonstration for the Columbus area 
shows maintenance of the 2008 ozone standard by providing emissions 
information to support the demonstration that future emissions of 
NOX and VOC will remain at or below 2014 emission levels 
when taking into account both future source growth and implementation 
of future controls. Table 11 shows NOX and VOC emissions in 
the Columbus area are projected to decrease by 78.74 TPSD and 35.54 
TPSD, respectively, between 2014 and 2030.
3. Continued Air Quality Monitoring
    Ohio EPA has committed to continue to operate the ozone monitors 
listed in Table 1 above. Ohio EPA has committed to consult with EPA 
prior to making changes to the existing monitoring network should 
changes become necessary in the future. Ohio remains obligated to meet 
monitoring requirements and continue to quality assure monitoring data 
in accordance with 40 CFR part 58, and to enter all data into the Air 
Quality System (AQS) in accordance with Federal guidelines.
4. Verification of Continued Attainment
    The State of Ohio, has the legal authority to enforce and implement 
the requirements of the maintenance plan for the Columbus area. This 
includes the authority to adopt, implement, and enforce any subsequent 
emission control measures determined to be necessary to correct future 
ozone attainment problems.
    Verification of continued attainment is accomplished through 
operation of the ambient ozone monitoring network and the periodic 
update of the area's emissions inventory. Ohio EPA will continue to 
operate the current ozone

[[Page 66589]]

monitors located in the Columbus area. There are no plans to 
discontinue operation, relocate, or otherwise change the existing ozone 
monitoring network other than through revisions in the network approved 
by the EPA.
    In addition, to track future levels of emissions, Ohio EPA will 
continue to develop and submit to EPA updated emission inventories for 
all source categories at least once every three years, consistent with 
the requirements of 40 CFR part 51, subpart A, and in 40 CFR 51.122. 
The Consolidated Emissions Reporting Rule (CERR) was promulgated by EPA 
on June 10, 2002 (67 FR 39602). The CERR was replaced by the Annual 
Emissions Reporting Requirements (AERR) on December 17, 2008 (73 FR 
76539). The most recent triennial inventory for Ohio was compiled for 
2014. Point source facilities covered by Ohio's emission statement 
rule, Ohio Administrative Code Chapter 3745-24, will continue to submit 
VOC and NOX emissions on an annual basis.
5. What is the contingency plan for the Columbus area?
    Section 175A of the CAA requires that the state must adopt a 
maintenance plan, as a SIP revision, that includes such contingency 
measures as EPA deems necessary to assure that the state will promptly 
correct a violation of the NAAQS that occurs after redesignation of the 
area to attainment of the NAAQS. The maintenance plan must identify: 
The contingency measures to be considered and, if needed for 
maintenance, adopted and implemented; a schedule and procedure for 
adoption and implementation; and, a time limit for action by the state. 
The state should also identify specific indicators to be used to 
determine when the contingency measures need to be considered, adopted, 
and implemented. The maintenance plan must include a commitment that 
the state will implement all measures with respect to the control of 
the pollutant that were contained in the SIP before redesignation of 
the area to attainment in accordance with section 175A(d) of the CAA.
    As required by section 175A of the CAA, Ohio has adopted a 
contingency plan for the Columbus area to address possible future ozone 
air quality problems. The contingency plan adopted by Ohio has two 
levels of response, a warning level response and an action level 
response.
    In Ohio's plan, a warning level response will be triggered when an 
annual fourth high monitored value of 0.079 ppm or higher is monitored 
within the maintenance area. A warning level response will consist of 
Ohio EPA conducting a study to determine whether the ozone value 
indicates a trend toward higher ozone values or whether emissions 
appear to be increasing. The studies will evaluate whether the trend, 
if any, is likely to continue and, if so, the control measures 
necessary to reverse the trend. The studies will consider ease and 
timing of implementation as well as economic and social impacts. 
Implementation of necessary controls in response to a warning level 
response trigger will take place within 12 months from the conclusion 
of the most recent ozone season.
    In Ohio's plan, an action level response is triggered when a two-
year average fourth high value of 0.076 ppm or greater is monitored 
within the maintenance area. A violation of the standard within the 
maintenance area also triggers an action level response. When an action 
level response is triggered, Ohio EPA, in conjunction with the 
metropolitan planning organization or regional council of governments, 
will determine what additional control measures are needed to assure 
future attainment of the ozone standard. Control measures selected will 
be adopted and implemented within 18 months from the close of the ozone 
season that prompted the action level. Ohio EPA may also consider if 
significant new regulations not currently included as part of the 
maintenance provisions will be implemented in a timely manner and would 
thus constitute an adequate contingency measure response.
    Ohio EPA included the following list of potential contingency 
measures in its maintenance plan:
    1. Adopt VOC RACT on existing sources covered by EPA Control 
Technique Guidelines issued after the 1990 CAA.
    2. Apply VOC RACT to smaller existing sources.
    3. One or more transportation control measures sufficient to 
achieve at least half a percent reduction in actual area wide VOC 
emissions. Transportation measures will be selected from the following, 
based upon the factors listed above after consultation with affected 
local governments:
    a. Trip reduction programs, including, but not limited to, 
employer-based transportation management plans, area wide rideshare 
programs, work schedule changes, and telecommuting;
    b. traffic flow and transit improvements; and
    c. other new or innovative transportation measures not yet in 
widespread use that affected local governments deem appropriate.
    4. Alternative fuel and diesel retrofit programs for fleet vehicle 
operations.
    5. Require VOC or NOX emission offsets for new and 
modified major sources.
    6. Increase the ratio of emission offsets required for new sources.
    7. Require VOC or NOX controls on new minor sources 
(less than 100 tons).
    8. Adopt NOX RACT for existing combustion sources.
    9. High volume, low pressure coating application requirements for 
autobody facilities.
    10. Requirements for cold cleaner degreaser operations (low vapor 
pressure solvents).
    EPA has concluded that the maintenance plan adequately addresses 
the five basic components of a maintenance plan: Attainment inventory, 
maintenance demonstration, monitoring network, verification of 
continued attainment, and a contingency plan. In addition, as required 
by section 175A(b) of the CAA, Ohio EPA has committed to submit to EPA 
an updated ozone maintenance plan eight years after redesignation of 
the Columbus area to cover an additional ten years beyond the initial 
10 year maintenance period. Thus, EPA proposes to find that the 
maintenance plan SIP revision submitted by Ohio EPA for the Columbus 
area meets the requirements of section 175A of the CAA.

V. Has the state adopted approvable motor vehicle emission budgets?

A. Motor Vehicle Emission Budgets

    Under section 176(c) of the CAA, new transportation plans, 
programs, or projects that receive Federal funding or support, such as 
the construction of new highways, must ``conform'' to (i.e., be 
consistent with) the SIP. Conformity to the SIP means that 
transportation activities will not cause new air quality violations, 
worsen existing air quality problems, or delay timely attainment of the 
NAAQS or interim air quality milestones. Regulations at 40 CFR part 93 
set forth EPA policy, criteria, and procedures for demonstrating and 
assuring conformity of transportation activities to a SIP. 
Transportation conformity is a requirement for nonattainment and 
maintenance areas. Maintenance areas are areas that were previously 
nonattainment for a particular NAAQS, but that have been redesignated 
to attainment with an approved maintenance plan for the NAAQS.
    Under the CAA, states are required to submit, at various times, 
control strategy

[[Page 66590]]

SIPs for nonattainment areas and maintenance plans for areas seeking 
redesignations to attainment of the ozone standard and maintenance 
areas. See the SIP requirements for the 2008 ozone standard in EPA's 
March 6, 2015 implementation rule (80 FR 12264). These control strategy 
SIPs (including reasonable further progress plans and attainment plans) 
and maintenance plans must include MVEBs for criteria pollutants, 
including ozone, and their precursor pollutants (VOC and NOX 
for ozone) to address pollution from onroad transportation sources. The 
MVEBs are the portion of the total allowable emissions that are 
allocated to highway and transit vehicle use that, together with 
emissions from other sources in the area, will provide for attainment 
or maintenance. See 40 CFR 93.101.
    Under 40 CFR part 93, a MVEB for an area seeking a redesignation to 
attainment must be established, at minimum, for the last year of the 
maintenance plan. A state may adopt MVEBs for other years as well. The 
MVEB serves as a ceiling on emissions from an area's planned 
transportation system. The MVEB concept is further explained in the 
preamble to the November 24, 1993, Transportation Conformity Rule (58 
FR 62188). The preamble also describes how to establish the MVEB in the 
SIP and how to revise the MVEB, if needed, subsequent to initially 
establishing a MVEB in the SIP.

B. What is the status of EPA's adequacy determination for the proposed 
VOC and NOX MVEBs for the Columbus area?

    Whan reviewing submitted control strategy SIPs or maintenance plans 
containing MVEBs, EPA must affirmatively find that the MVEBs contained 
therein are adequate for use in determining transportation conformity. 
Once EPA affirmatively finds that the submitted MVEBs are adequate for 
transportation purposes, the MVEBs must be used by state and Federal 
agencies in determining whether proposed transportation projects 
conform to the SIP as required by section 176(c) of the CAA.
    EPA's substantive criteria for determining adequacy of a MVEB are 
set out in 40 CFR 93.118(e)(4). The process for determining adequacy 
consists of three basic steps: Public notification of a SIP submission; 
provision for a public comment period; and EPA's adequacy 
determination. This process for determining the adequacy of submitted 
MVEBs for transportation conformity purposes was initially outlined in 
EPA's May 14, 1999 guidance, ``Conformity Guidance on Implementation of 
March 2, 1999, Conformity Court Decision.'' EPA adopted regulations to 
codify the adequacy process in the Transportation Conformity Rule 
Amendments for the ``New 8-Hour Ozone and PM2.5 National 
Ambient Air Quality Standards and Miscellaneous Revisions for Existing 
Areas; Transportation Conformity Rule Amendments--Response to Court 
Decision and Additional Rule Change,'' on July 1, 2004 (69 FR 40004). 
Additional information on the adequacy process for transportation 
conformity purposes is available in the proposed rule titled, 
``Transportation Conformity Rule Amendments: Response to Court Decision 
and Additional Rule Changes,'' 68 FR 38974, 38984 (June 30, 2003).
    As discussed earlier, Ohio's maintenance plan includes 
NOX and VOC MVEBs for the Columbus area for 2030 and 2020, 
the last year of the maintenance period and an interim year. EPA 
reviewed the VOC and NOX MVEBs through the adequacy process. 
Ohio's April 21, 2016, maintenance plan SIP submission, including the 
VOC and NOX MVEBs for the Columbus area was open for public 
comment on EPA's adequacy Web site on July 22, 2016, found at: http://www.epa.gov/otaq/stateresources/transconf/currsips.htm. The EPA public 
comment period on adequacy of the 2020 and 2030 MVEBs for the Columbus 
area closed on August 22, 2016. No comments on the submittal were 
received during the adequacy comment period. The submitted maintenance 
plan, which included the MVEBs, was endorsed by the Governor (or his or 
her designee) and was subject to a state public hearing. The MVEBS were 
developed as part of an interagency consultation process which includes 
Federal, state, and local agencies. The MVEBS were clearly identified 
and precisely quantified. These MVEBs, when considered together with 
all other emissions sources, are consistent with maintenance of the 
2008 8-hour ozone standard.

                                                       Table 12--MVEBs for the Columbus Area, TPSD
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                            Attainment         2020                                            2030
                                             year 2014       Estimated      2020 Mobile                      Estimated      2030 Mobile
                                              onroad          onroad       safety margin    2020 MVEBs        onroad       safety margin    2030 MVEBs
                                             emissions       emissions      allocation                       emissions      allocation
--------------------------------------------------------------------------------------------------------------------------------------------------------
VOC.....................................           68.06           44.05            6.61           50.66           38.53            5.78           44.31
NOX.....................................          138.65           86.56           12.98           90.54           74.03           11.10           85.13
--------------------------------------------------------------------------------------------------------------------------------------------------------

    As shown in Table 12, the 2020 and 2030 MVEBs exceed the estimated 
2020 and 2030 onroad sector emissions. In an effort to accommodate 
future variations in travel demand models and vehicle miles traveled 
forecast, Ohio EPA allocated a portion of the safety margin (described 
further below) to the mobile sector. Ohio has demonstrated that the 
Columbus area can maintain the 2008 ozone NAAQS with mobile source 
emissions in the area of 50.66 TPSD and 44.31 TPSD of VOC and 90.54 
TPSD and 85.13 TPSD of NOX in 2020 and 2030, respectively, 
since despite partial allocation of the safety margin, emissions will 
remain under attainment year emission levels. EPA, has found adequate 
and is proposing to approve the MVEBs for use to determine 
transportation conformity in the Columbus area, because EPA has 
determined that the area can maintain attainment of the 2008 ozone 
NAAQS for the relevant maintenance period with mobile source emissions 
at the levels of the MVEBs.

C. What is a safety margin?

    A ``safety margin'' is the difference between the attainment level 
of emissions (from all sources) and the projected level of emissions 
(from all sources) in the maintenance plan. As noted in Table 11, the 
emissions in the Columbus area are projected to have safety margins of 
78.74 TPSD for NOX and 35.54 TPSD for VOC in 2030 (the 
difference between the attainment year, 2014, emissions and the 
projected 2030 emissions for all sources in the Columbus area). 
Similarly, there is a safety margin of 59.14 TPSD for NOX 
and 28.55 TPSD for VOC in 2020. Even if emissions reached the full 
level of the safety margin, the counties would still demonstrate 
maintenance since

[[Page 66591]]

emission levels would equal those in the attainment year.
    As shown in Table 12 above, Ohio is allocating a portion of that 
safety margin to the mobile source sector. Specifically, in 2020, Ohio 
is allocating 6.61 TPSD and 12.98 TPSD of the VOC and NOX 
safety margins, respectively. In 2030, Ohio is allocating 5.78 TPSD and 
11.10 TPSD of the VOC and NOX safety margins, respectively. 
Ohio EPA is not requesting allocation to the MVEBs of the entire 
available safety margins reflected in the demonstration of maintenance. 
In fact, the amount allocated to the MVEBs represents only a small 
portion of the 2020 and 2030 safety margins. Therefore, even though the 
State is requesting MVEBs that exceed the projected onroad mobile 
source emissions for 2020 and 2030 contained in the demonstration of 
maintenance, the increase in onroad mobile source emissions that can be 
considered for transportation conformity purposes is well within the 
safety margins of the ozone maintenance demonstration. Further, once 
allocated to mobile sources, these safety margins will not be available 
for use by other sources.

VI. Proposed Actions

    EPA is proposing to determine that the Columbus nonattainment is 
attaining the 2008 ozone standard, based on quality-assured and 
certified monitoring data for 2013-2015 and that the Ohio portion of 
this area has met the requirements for redesignation under section 
107(d)(3)(E) of the CAA. EPA is thus proposing to approve Ohio EPA's 
request to change the legal designation of the Columbus area from 
nonattainment to attainment for the 2008 ozone standard. EPA is also 
proposing to approve, as a revision to the Ohio SIP, the state's 
maintenance plan for the area. The maintenance plan is designed to keep 
the Columbus area in attainment of the 2008 ozone NAAQS through 2030. 
Finally, EPA finds adequate and is proposing to approve the newly-
established 2020 and 2030 MVEBs for the Columbus area.

VII. Statutory and Executive Order Reviews

    Under the CAA, redesignation of an area to attainment and the 
accompanying approval of a maintenance plan under section 107(d)(3)(E) 
are actions that affect the status of a geographical area and do not 
impose any additional regulatory requirements on sources beyond those 
imposed by state law. A redesignation to attainment does not in and of 
itself create any new requirements, but rather results in the 
applicability of requirements contained in the CAA for areas that have 
been redesignated to attainment. Moreover, the Administrator is 
required to approve a SIP submission that complies with the provisions 
of the CAA and applicable Federal regulations. 42 U.S.C. 7410(k); 40 
CFR 52.02(a). Thus, in reviewing SIP submissions, EPA's role is to 
approve state choices, provided that they meet the criteria of the CAA. 
Accordingly, this action merely approves state law as meeting Federal 
requirements and does not impose additional requirements beyond those 
imposed by state law. For that reason, this action:
     Is not a significant regulatory action subject to review 
by the Office of Management and Budget under Executive Orders 12866 (58 
FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21, 2011);
     Does not impose an information collection burden under the 
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     Is certified as not having a significant economic impact 
on a substantial number of small entities under the Regulatory 
Flexibility Act (5 U.S.C. 601 et seq.);
     Does not contain any unfunded mandate or significantly or 
uniquely affect small governments, as described in the Unfunded 
Mandates Reform Act of 1995 (Pub. L. 104-4);
     Does not have Federalism implications as specified in 
Executive Order 13132 (64 FR 43255, August 10, 1999);
     Is not an economically significant regulatory action based 
on health or safety risks subject to Executive Order 13045 (62 FR 
19885, April 23, 1997);
     Is not a significant regulatory action subject to 
Executive Order 13211 (66 FR 28355, May 22, 2001);
     Is not subject to requirements of Section 12(d) of the 
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272 
note) because application of those requirements would be inconsistent 
with the CAA; and
     Does not provide EPA with the discretionary authority to 
address, as appropriate, disproportionate human health or environmental 
effects, using practicable and legally permissible methods, under 
Executive Order 12898 (59 FR 7629, February 16, 1994).
    In addition, the SIP is not approved to apply on any Indian 
reservation land or in any other area where EPA or an Indian tribe has 
demonstrated that a tribe has jurisdiction. In those areas of Indian 
country, this rule does not have tribal implications as specified by 
Executive Order 13175 (65 FR 67249, November 9, 2000), because 
redesignation is an action that affects the status of a geographical 
area and does not impose any new regulatory requirements on tribes, 
impact any existing sources of air pollution on tribal lands, nor 
impair the maintenance of ozone national ambient air quality standards 
in tribal lands.

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Incorporation by 
reference, Intergovernmental relations, Oxides of nitrogen, Ozone, 
Volatile organic compounds.

    Dated: September 19, 2016.
Robert A. Kaplan,
Acting Regional Administrator, Region 5.
[FR Doc. 2016-23293 Filed 9-27-16; 8:45 am]
 BILLING CODE 6560-50-P



                                                  66578             Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules

                                                  not apply to these regulations, and                     PART 1—INCOME TAXES                                   and profits of foreign corporations, see
                                                  because the regulations do not impose a                                                                       § 1.959–3.
                                                  collection of information on small                      ■ Paragraph 1. The authority citation for             *       *    *    *     *
                                                  entities, the Regulatory Flexibility Act                part 1 continues to read in part as                      (iii) For purposes of section
                                                  (5 U.S.C. chapter 6) does not apply.                    follows:                                              851(b)(2)(A) and paragraph (b)(1)(i)(F) of
                                                  Pursuant to section 7805(f) of the                          Authority: 26 U.S.C. 7805 * * *                   this section, amounts included in gross
                                                  Internal Revenue Code, this notice of                                                                         income under section 951(a)(1) or
                                                                                                          ■ Par. 2. Section 1.851–2 is amended by:
                                                  proposed rulemaking will be submitted                                                                         1293(a) are not treated as other income
                                                                                                          ■ 1. Revising paragraphs (b)(1) and                   derived with respect to a corporation’s
                                                  to the Chief Counsel for Advocacy of the
                                                                                                          (b)(2)(i).                                            business of investing in stock,
                                                  Small Business Administration for
                                                                                                          ■ 2. Adding paragraph (b)(2)(iii).
                                                  comment on its impact on small                                                                                securities, or currencies. The rule in this
                                                                                                            The addition and revisions read as                  paragraph (b)(2)(iii) applies to taxable
                                                  business.
                                                                                                          follows:                                              years that begin on or after the date that
                                                  Comments and Requests for a Public                                                                            is 90 days after the date of publication
                                                                                                          § 1.851–2    Limitations.
                                                  Hearing                                                                                                       in the Federal Register of a Treasury
                                                                                                          *       *    *     *     *
                                                                                                                                                                decision adopting these proposed
                                                    Before these proposed regulations are                    (b) Gross income requirement—(1)                   regulations as final regulations.
                                                  adopted as final regulations,                           General rule. A corporation will not be
                                                  consideration will be given to any                      a regulated investment company for a                  John Dalrymple,
                                                  comments that are submitted timely to                   taxable year unless 90 percent of its                 Deputy Commissioner for Services and
                                                  the IRS as prescribed in this preamble                  gross income for that year is income                  Enforcement.
                                                  under the ‘‘Addresses’’ heading. The                    described in paragraph (b)(1)(i) of this              [FR Doc. 2016–23408 Filed 9–27–16; 8:45 am]
                                                  Treasury Department and the IRS                         section or in paragraph (b)(1)(ii) of this            BILLING CODE 4830–01–P
                                                  specifically request comments on the                    section. Any loss from the sale or other
                                                  clarity of the proposed regulations and                 disposition of stock or securities is not
                                                  how they can be made easier to                          taken into account in the gross income
                                                                                                          computation.                                          ENVIRONMENTAL PROTECTION
                                                  understand. All comments will be made                                                                         AGENCY
                                                  available for public inspection at                         (i) Gross income amounts. Income is
                                                                                                          described in this paragraph (b)(1)(i) if it           40 CFR Parts 52 and 81
                                                  www.regulations.gov or upon request. A
                                                                                                          is gross income derived from:
                                                  public hearing will be scheduled if
                                                                                                             (A) Dividends;                                     [EPA–R05–OAR–2016–0372; FRL–9953–15–
                                                  requested in writing by any person that
                                                  timely submits written comments. If a                      (B) Interest;                                      Region 5]
                                                  public hearing is scheduled, notice of                     (C) Payments with respect to
                                                                                                          securities loans (as defined in section               Air Plan Approval; Ohio;
                                                  the date, time, and place for the public                                                                      Redesignation of the Columbus, Ohio
                                                                                                          512(a)(5));
                                                  hearing will be published in the Federal                                                                      Area to Attainment of the 2008 Ozone
                                                                                                             (D) Gains from the sale or other
                                                  Register.                                                                                                     Standard
                                                                                                          disposition of stocks or securities (as
                                                  Drafting Information                                    defined in section 2(a)(36) of the                    AGENCY:  Environmental Protection
                                                                                                          Investment Company Act of 1940, as                    Agency (EPA).
                                                     The principal author of these                        amended);
                                                  proposed regulations is Matthew                                                                               ACTION: Proposed rule.
                                                                                                             (E) Gains from the sale or other
                                                  Howard, Office of Associate Chief                       disposition of foreign currencies; or                 SUMMARY:    The Environmental Protection
                                                  Council (Financial Institutions and                        (F) Other income (including but not                Agency (EPA) is proposing to find that
                                                  Products). However, other personnel                     limited to gains from options, futures, or            the Columbus, Ohio area is attaining the
                                                  from the Treasury Department and the                    forward contracts) derived with respect               2008 8-hour ozone National Ambient
                                                  IRS participated in their development.                  to a regulated investment company’s                   Air Quality Standard (NAAQS or
                                                  Statement of Availability of IRS                        business of investing in such stock,                  standard) and to approve a request from
                                                                                                          securities, or currencies.                            the Ohio Environmental Protection
                                                  Documents
                                                                                                             (ii) Income from a publicly traded                 Agency (Ohio EPA) to redesignate the
                                                     The IRS revenue rulings and revenue                  partnership. Income is described in this              area to attainment for the 2008 ozone
                                                  procedure cited in this preamble are                    paragraph (b)(1)(ii) if it is net income              NAAQS because the request meets the
                                                  published in the Internal Revenue                       derived from an interest in a qualified               statutory requirements for redesignation
                                                  Bulletin (or Cumulative Bulletin) and                   publicly traded partnership (as defined               under the Clean Air Act (CAA or Act).
                                                  are available from the Superintendent of                in section 851(h)).                                   The Columbus area includes Delaware,
                                                  Documents, U.S. Government                                 (2) Special rules—(i) For purposes of              Fairfield, Knox, Licking, and Mason
                                                  Publishing Office, Washington, DC                       section 851(b)(2)(A) and paragraph                    Counties. Ohio EPA submitted this
                                                  20402, or by visiting the IRS Web site                  (b)(1)(i)(A) of this section, amounts                 request on June 16, 2016. EPA is also
                                                  at www.irs.gov.                                         included in gross income for the taxable              proposing to approve, as a revision to
                                                                                                          year under section 951(a)(1)(A)(i) or                 the Ohio State Implementation Plan
                                                  List of Subjects in 26 CFR Part 1                       1293(a) are treated as dividends only to              (SIP), the state’s plan for maintaining
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                                                                                                          the extent that, under section 959(a)(1)              the 2008 8-hour ozone standard through
                                                    Income taxes, Reporting and                           or 1293(c) (as the case may be), there is             2030 in the Columbus area. Finally, EPA
                                                  recordkeeping requirements.                             a distribution out of the earnings and                finds adequate and is proposing to
                                                  Proposed Amendments to the                              profits of the taxable year that are                  approve the state’s 2020 and 2030
                                                  Regulations                                             attributable to the amounts included in               volatile organic compound (VOC) and
                                                                                                          gross income for the taxable year under               oxides of nitrogen (NOX) Motor Vehicle
                                                    Accordingly, 26 CFR part 1 is                         section 951(a)(1)(A)(i) or 1293(a). For               Emission Budgets (MVEBs) for the
                                                  proposed to be amended as follows:                      allocation of distributions to earnings               Columbus area.


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                                                                    Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules                                                  66579

                                                  DATES:   Comments must be received on                     2. The Columbus Area Has a Fully                    informed Ohio EPA that we found the
                                                  or before October 28, 2016.                                  Approved SIP for Purposes of                     2020 and 2030 MVEBs to be adequate
                                                                                                               Redesignation Under Section 110(k) of            for use in transportation conformity
                                                  ADDRESSES: Submit your comments,
                                                                                                               the CAA
                                                  identified by Docket ID No. EPA–R05–                                                                          analyses. Please see section V.B. of this
                                                                                                            C. Are the air quality improvements in the
                                                  OAR–2016–0372 at http://                                     Columbus area due to permanent and               rulemaking, ‘‘What is the status of EPA’s
                                                  www.regulations.gov or via email to                          enforceable emission reductions?                 adequacy determination for the
                                                  aburano.douglas@epa.gov. For                              1. Permanent and Enforceable Emission               proposed VOC and NOX MVEBs for the
                                                  comments submitted at Regulations.gov,                       Controls Implemented                             Columbus area,’’ for further explanation
                                                  follow the online instructions for                        2. Emission Reductions                              of this process. Therefore, we find
                                                                                                            3. Meteorology                                      adequate, and are proposing to approve,
                                                  submitting comments. Once submitted,                      D. Does Ohio have a fully approvable
                                                  comments cannot be edited or removed                                                                          the State’s 2020 and 2030 MVEBs for
                                                                                                               ozone maintenance plan for the
                                                  from Regulations.gov. For either manner                      Columbus area?
                                                                                                                                                                transportation conformity purposes.
                                                  of submission, EPA may publish any                        1. Attainment Inventory                             II. What is the background for these
                                                  comment received to its public docket.                    2. Has the state documented maintenance             actions?
                                                  Do not submit electronically any                             of the ozone standard in the Columbus
                                                                                                               area?                                               EPA has determined that ground-level
                                                  information you consider to be
                                                                                                            3. Continued Air Quality Monitoring                 ozone is detrimental to human health.
                                                  Confidential Business Information (CBI)
                                                                                                            4. Verification of Continued Attainment             On March 12, 2008, EPA promulgated a
                                                  or other information whose disclosure is                  5. What is the contingency plan for the             revised 8-hour ozone NAAQS of 0.075
                                                  restricted by statute. Multimedia                            Columbus area?                                   parts per million (ppm). See 73 FR
                                                  submissions (audio, video, etc.) must be                V. Has the state adopted approvable motor             16436 (March 27, 2008). Under EPA’s
                                                  accompanied by a written comment.                            vehicle emission budgets?
                                                                                                            A. Motor Vehicle Emission Budgets
                                                                                                                                                                regulations at 40 CFR part 50, the 2008
                                                  The written comment is considered the
                                                                                                            B. What is the status of EPA’s adequacy             8-hour ozone NAAQS is attained in an
                                                  official comment and should include                                                                           area when the 3-year average of the
                                                  discussion of all points you wish to                         determination for the proposed VOC and
                                                                                                               NOX MVEBs for the Columbus area?                 annual fourth highest daily maximum 8-
                                                  make. EPA will generally not consider                                                                         hour average concentration is equal to
                                                                                                            C. What is a safety margin?
                                                  comments or comment contents located                    VI. Proposed Actions                                  or less than 0.075 ppm, when truncated
                                                  outside of the primary submission (i.e.                 VII. Statutory and Executive Order Reviews            after the thousandth decimal place, at
                                                  on the web, cloud, or other file sharing                                                                      all of the ozone monitoring sites in the
                                                  system). For additional submission                      I. What are the actions EPA is
                                                                                                          proposing?                                            area. See 40 CFR 50.15 and appendix P
                                                  methods, please contact the person                                                                            to 40 CFR part 50.
                                                  identified in the FOR FURTHER                              EPA is proposing to take several                      Upon promulgation of a new or
                                                  INFORMATION CONTACT section. For the                    related actions. EPA is proposing to                  revised NAAQS, section 107(d)(1)(B) of
                                                  full EPA public comment policy,                         determine that the Columbus                           the CAA requires EPA to designate as
                                                  information about CBI or multimedia                     nonattainment area is attaining the 2008              nonattainment any areas that are
                                                  submissions, and general guidance on                    ozone standard, based on quality-                     violating the NAAQS, based on the most
                                                  making effective comments, please visit                 assured and certified monitoring data                 recent three years of quality assured
                                                  http://www2.epa.gov/dockets/                            for 2013–2015 and that this area has met              ozone monitoring data. The Columbus
                                                  commenting-epa-dockets.                                 the requirements for redesignation                    area was designated as a marginal
                                                  FOR FURTHER INFORMATION CONTACT:                        under section 107(d)(3)(E) of the CAA.                nonattainment area for the 2008 ozone
                                                  Kathleen D’Agostino, Environmental                      EPA is thus proposing to approve Ohio                 NAAQS on May 21, 2012 (77 FR 30088)
                                                  Scientist, Attainment Planning and                      EPA’s request to change the legal                     (effective July 20, 2012).
                                                  Maintenance Section, Air Programs                       designation of the Columbus area from                    In a final implementation rule for the
                                                  Branch (AR–18J), Environmental                          nonattainment to attainment for the                   2008 ozone NAAQS (SIP Requirements
                                                  Protection Agency, Region 5, 77 West                    2008 ozone standard. EPA is also                      Rule),1 EPA established ozone standard
                                                  Jackson Boulevard, Chicago, Illinois                    proposing to approve, as a revision to                attainment dates based on table 1 of
                                                  60604, (312) 886–1767,                                  the Ohio SIP, the state’s maintenance                 section 181(a) of the CAA. This
                                                  dagostino.kathleen@epa.gov.                             plan (such approval being one of the                  established an attainment date three
                                                  SUPPLEMENTARY INFORMATION:                              CAA criteria for redesignation to                     years after the July 20, 2012, effective
                                                  Throughout this document whenever                       attainment status) for the area. The                  designation date for areas classified as
                                                  ‘‘we,’’ ‘‘us,’’ or ‘‘our’’ is used, we mean             maintenance plan is designed to keep                  marginal nonattainment for the 2008
                                                  EPA. This SUPPLEMENTARY INFORMATION                     the Columbus area in attainment of the                ozone NAAQS. Therefore, the
                                                  section is arranged as follows:                         2008 ozone NAAQS through 2030.                        attainment date for the Columbus area
                                                                                                          Finally, EPA finds adequate and is                    was July 20, 2015. On May 4, 2016 (81
                                                  I. What are the actions EPA is proposing?               proposing to approve the newly-                       FR 26697), in accordance with section
                                                  II. What is the background for these actions?
                                                  III. What are the criteria for redesignation?
                                                                                                          established 2020 and 2030 MVEBs for
                                                  IV. What is EPA’s analysis of Ohio’s                    the Columbus area. The adequacy                         1 This rule, titled ‘‘Implementation of the 2008

                                                                                                          comment period for the MVEBs began                    National Ambient Air Quality Standards for Ozone:
                                                        redesignation request?                                                                                  State Implementation Plan Requirements’’ and
                                                     A. Has the Columbus area attained the                on July 22, 2016, with EPA’s posting of               published at 80 FR 12264 (March 6, 2015),
                                                        2008 8-hour ozone NAAQS?                          the availability of the submittal on                  addresses nonattainment area SIP requirements for
                                                     B. Has Ohio met all applicable                       EPA’s Adequacy Web site (at http://                   the 2008 ozone NAAQS, including requirements
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                                                        requirements of section 110 and part D            www.epa.gov/otaq/stateresources/                      pertaining to attainment demonstrations, reasonable
                                                        of the CAA for the Columbus area, and                                                                   further progress (RFP), reasonably available control
                                                                                                          transconf/adequacy.htm). The adequacy                 technology (RACT), reasonably available control
                                                        does Ohio have a fully approved SIP for           comment period for these MVEBs ended
                                                        the area under section 110(k) of the                                                                    measures (RACM), new source review (NSR),
                                                        CAA?
                                                                                                          on August 22, 2016. EPA did not receive               emission inventories, and the timing requirements
                                                                                                          any requests for this submittal, or                   for SIP submissions and compliance with emission
                                                     1. Ohio Has Met All Applicable                                                                             control measures in the SIP. This rule also
                                                        Requirements of Section 110 and Part D            adverse comments on this submittal                    addresses the revocation of the 1997 ozone NAAQS
                                                        of the CAA Applicable to the Columbus             during the adequacy comment period.                   and the anti-backsliding requirements that apply
                                                        Area for Purposes of Redesignation                In a letter dated August 23, 2016, EPA                when the 1997 ozone NAAQS is revoked.



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                                                  66580             Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules

                                                  181(b)(2)(A) of the CAA and the                         Monoxide Programs Branch, June 1,                     section 107(d)(3)(E)(i)). An area is
                                                  provisions of the SIP Requirements Rule                 1992;                                                 attaining the 2008 ozone NAAQS if it
                                                  (40 CFR 51.1103), EPA made a                              4. ‘‘Procedures for Processing                      meets the 2008 ozone NAAQS, as
                                                  determination that the Columbus area                    Requests to Redesignate Areas to                      determined in accordance with 40 CFR
                                                  attained the standard by its July 20,                   Attainment,’’ Memorandum from John                    50.15 and appendix P of part 50, based
                                                  2015, attainment date for the 2008                      Calcagni, Director, Air Quality                       on three complete, consecutive calendar
                                                  ozone NAAQS. EPA’s determination                        Management Division, September 4,                     years of quality-assured air quality data
                                                  was based upon 3 years of complete,                     1992 (the ‘‘Calcagni Memorandum’’);                   for all monitoring sites in the area. To
                                                  quality-assured and certified data for the                5. ‘‘State Implementation Plan (SIP)                attain the NAAQS, the three-year
                                                  2012–2014 time period.                                  Actions Submitted in Response to Clean                average of the annual fourth-highest
                                                  III. What are the criteria for                          Air Act (CAA) Deadlines,’’                            daily maximum 8-hour average ozone
                                                  redesignation?                                          Memorandum from John Calcagni,                        concentrations (ozone design values) at
                                                                                                          Director, Air Quality Management                      each monitor must not exceed 0.075
                                                     Section 107(d)(3)(E) of the CAA                      Division, October 28, 1992;                           ppm. The air quality data must be
                                                  allows redesignation of an area to                        6. ‘‘Technical Support Documents                    collected and quality-assured in
                                                  attainment of the NAAQS provided that:                  (TSDs) for Redesignation of Ozone and                 accordance with 40 CFR part 58 and
                                                  (1) The Administrator (EPA) determines                  Carbon Monoxide (CO) Nonattainment                    recorded in EPA’s Air Quality System
                                                  that the area has attained the NAAQS;                   Areas,’’ Memorandum from G.T. Helms,                  (AQS). Ambient air quality monitoring
                                                  (2) the Administrator has fully approved                Chief, Ozone/Carbon Monoxide                          data for the 3-year period must also
                                                  the applicable implementation plan for                  Programs Branch, August 17, 1993;                     meet data completeness requirements.
                                                  the area under section 110(k) of the                      7. ‘‘State Implementation Plan (SIP)                An ozone design value is valid if daily
                                                  CAA; (3) the Administrator determines                   Requirements for Areas Submitting                     maximum 8-hour average
                                                  that the improvement in air quality is                  Requests for Redesignation to                         concentrations are available for at least
                                                  due to permanent and enforceable                        Attainment of the Ozone and Carbon                    90 percent of the days within the ozone
                                                  reductions in emissions resulting from                  Monoxide (CO) National Ambient Air                    monitoring seasons,2 on average, for the
                                                  implementation of the applicable SIP,                   Quality Standards (NAAQS) On or After                 three-year period, with a minimum data
                                                  applicable Federal air pollutant control                November 15, 1992,’’ Memorandum                       completeness of 75 percent during the
                                                  regulations, and other permanent and                    from Michael H. Shapiro, Acting                       ozone monitoring season of any year
                                                  enforceable emission reductions; (4) the                Assistant Administrator for Air and                   during the three-year period. See section
                                                  Administrator has fully approved a                      Radiation, September 17, 1993;                        2.3 of appendix P to 40 CFR part 50.
                                                  maintenance plan for the area as                          8. ‘‘Use of Actual Emissions in
                                                  meeting the requirements of section                                                                              On May 4, 2016, in accordance with
                                                                                                          Maintenance Demonstrations for Ozone                  section 181(b)(2)(A) of the CAA and the
                                                  175A of the CAA; and (5) the state                      and CO Nonattainment Areas,’’
                                                  containing the area has met all                                                                               provisions of the SIP Requirements Rule
                                                                                                          Memorandum from D. Kent Berry,                        (40 CFR 51.1103), EPA made a
                                                  requirements applicable to the area for                 Acting Director, Air Quality
                                                  the purposes of redesignation under                                                                           determination that the Columbus area
                                                                                                          Management Division, November 30,                     attained the standard by its July 20,
                                                  section 110 and part D of the CAA.                      1993;
                                                     On April 16, 1992, EPA provided                                                                            2015 attainment date for the 2008 ozone
                                                                                                            9. ‘‘Part D New Source Review (Part                 NAAQS. This determination was based
                                                  guidance on redesignations in the                       D NSR) Requirements for Areas
                                                  General Preamble for the                                                                                      upon 3 years of complete, quality-
                                                                                                          Requesting Redesignation to                           assured and certified data for the 2012–
                                                  Implementation of Title I of the CAA                    Attainment,’’ Memorandum from Mary
                                                  Amendments of 1990 (57 FR 13498) and                                                                          2014 time period. In addition, EPA has
                                                                                                          D. Nichols, Assistant Administrator for               reviewed the available ozone
                                                  supplemented this guidance on April                     Air and Radiation, October 14, 1994;
                                                  28, 1992 (57 FR 18070). EPA has                                                                               monitoring data from monitoring sites
                                                                                                          and                                                   in the Columbus area for the 2013–2015
                                                  provided further guidance on processing                   10. ‘‘Reasonable Further Progress,
                                                  redesignation requests in the following                                                                       time period. These data have been
                                                                                                          Attainment Demonstration, and Related                 quality assured, are recorded in the
                                                  documents:                                              Requirements for Ozone Nonattainment
                                                     1. ‘‘Ozone and Carbon Monoxide                                                                             AQS, and have been certified. These
                                                                                                          Areas Meeting the Ozone National                      data demonstrate that the Columbus
                                                  Design Value Calculations,’’                            Ambient Air Quality Standard,’’
                                                  Memorandum from Bill Laxton.                                                                                  area is attaining the 2008 ozone
                                                                                                          Memorandum from John S. Seitz,                        NAAQS. The annual fourth-highest 8-
                                                  Director, Technical Support Division,                   Director, Office of Air Quality Planning
                                                  June 18, 1990;                                                                                                hour ozone concentrations and the 3-
                                                                                                          and Standards, May 10, 1995.                          year average of these concentrations
                                                     2. ‘‘Maintenance Plans for
                                                  Redesignation of Ozone and Carbon                       IV. What is EPA’s analysis of Ohio’s                  (monitoring site ozone design values)
                                                  Monoxide Nonattainment Areas,’’                         redesignation request?                                for each monitoring site are summarized
                                                  Memorandum from G.T. Helms, Chief,                                                                            in Table 1.
                                                                                                          A. Has the Columbus area attained the
                                                  Ozone/Carbon Monoxide Programs
                                                                                                          2008 8-hour ozone NAAQS?
                                                  Branch, April 30, 1992;                                                                                         2 The ozone season is defined by state in 40 CFR

                                                     3. ‘‘Contingency Measures for Ozone                     For redesignation of a nonattainment               58 appendix D. For the 2012–2014 and 2013–2015
                                                                                                                                                                time periods, the ozone season for Ohio was April-
                                                  and Carbon Monoxide (CO)                                area to attainment, the CAA requires                  October. Beginning in 2016, the ozone season for
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                                                  Redesignations,’’ Memorandum from                       EPA to determine that the area has                    Ohio is March-October. See, 80 FR 65292, 65466–
                                                  G.T. Helms, Chief, Ozone/Carbon                         attained the applicable NAAQS (CAA                    67 (October 26, 2015).




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                                                                           Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules                                                                          66581

                                                       TABLE 1—ANNUAL 4TH HIGH DAILY MAXIMUM 8-HOUR OZONE CONCENTRATIONS AND 3-YEAR AVERAGE OF THE 4TH
                                                                   HIGH DAILY MAXIMUM 8-HOUR OZONE CONCENTRATIONS FOR THE COLUMBUS AREA
                                                                                                                                                                                                                                         2013–
                                                                                                                                                                                                  2013         2014         2015          2015
                                                                                                          County                                                                   Monitor      4th high     4th high     4th high      Average
                                                                                                                                                                                                 (ppm)        (ppm)        (ppm)         (ppm)

                                                  Delaware ................................................................................................................      39–041–0002       0.070         0.066        0.068         0.068
                                                  Franklin ..................................................................................................................    39–049–0029       0.073         0.070        0.071         0.071
                                                                                                                                                                                 39–049–0037       0.070         0.069        0.064         0.067
                                                                                                                                                                                 39–049–0081       0.070         0.069        0.063         0.065
                                                  Knox .......................................................................................................................   39–083–0002       0.067         0.066        0.071         0.068
                                                  Licking ....................................................................................................................   39–089–0005       0.065         0.066        0.068         0.066
                                                  Madison ..................................................................................................................     39–097–0007       0.066         0.069        0.069         0.068



                                                     The 3-year ozone design value for                                        Columbus area and the Ohio SIP and, if                           hearing, and that, among other things, it
                                                  2013–2015 is 0.071 ppm,3 which meets                                        applicable, whether the required Ohio                            must: (1) Include enforceable emission
                                                  the 2008 ozone NAAQS. Therefore, in                                         SIP elements are fully approved under                            limitations and other control measures,
                                                  today’s action, EPA proposes to                                             section 110(k) and part D of the CAA.                            means or techniques necessary to meet
                                                  determine that the Columbus area is                                         As discussed more fully below, SIPs                              the requirements of the CAA; (2)
                                                  attaining the 2008 ozone NAAQS.                                             must be fully approved only with                                 provide for establishment and operation
                                                     EPA will not take final action to                                        respect to currently applicable                                  of appropriate devices, methods,
                                                  determine that the Columbus area is                                         requirements of the CAA.                                         systems and procedures necessary to
                                                  attaining the NAAQS nor to approve the                                         The September 4, 1992 Calcagni                                monitor ambient air quality; (3) provide
                                                  redesignation of this area if the design                                    memorandum (see ‘‘Procedures for                                 for implementation of a source permit
                                                  value of a monitoring site in the area                                      Processing Requests to Redesignate                               program to regulate the modification
                                                  exceeds the NAAQS after proposal but                                        Areas to Attainment,’’ Memorandum                                and construction of stationary sources
                                                  prior to final approval of the                                              from John Calcagni, Director, Air                                within the areas covered by the plan; (4)
                                                  redesignation. Preliminary 2016 data                                        Quality Management Division,                                     include provisions for the
                                                  indicate that this area continues to                                        September 4, 1992) describes EPA’s                               implementation of part C prevention of
                                                  attain the 2008 ozone NAAQS. As                                             interpretation of section 107(d)(3)(E) of                        significant deterioration (PSD) and part
                                                  discussed in section IV.D.3. below, Ohio                                    the CAA. Under this interpretation, a                            D new source review (NSR) permit
                                                  EPA has committed to continue                                               state and the area it wishes to                                  programs; (5) include provisions for
                                                  monitoring ozone in this area to verify                                     redesignate must meet the relevant CAA                           stationary source emission control
                                                  maintenance of the ozone standard.                                          requirements that are due prior to the                           measures, monitoring, and reporting; (6)
                                                  B. Has Ohio met all applicable                                              state’s submittal of a complete                                  include provisions for air quality
                                                  requirements of section 110 and part D                                      redesignation request for the area. See                          modeling; and, (7) provide for public
                                                  of the CAA for the Columbus area, and                                       also the September 17, 1993, Michael                             and local agency participation in
                                                  does Ohio have a fully approved SIP for                                     Shapiro memorandum and 60 FR 12459,                              planning and emission control rule
                                                  the area under section 110(k) of the                                        12465–66 (March 7, 1995)                                         development.
                                                                                                                              (redesignation of Detroit-Ann Arbor,                               Section 110(a)(2)(D) of the CAA
                                                  CAA?
                                                                                                                              Michigan to attainment of the 1-hour                             requires SIPs to contain measures to
                                                     As criteria for redesignation of an area                                                                                                  prevent sources in a state from
                                                                                                                              ozone NAAQS). Applicable
                                                  from nonattainment to attainment of a                                                                                                        significantly contributing to air quality
                                                                                                                              requirements of the CAA that come due
                                                  NAAQS, the CAA requires EPA to                                                                                                               problems in another state. To
                                                                                                                              subsequent to the state’s submittal of a
                                                  determine that the state has met all                                                                                                         implement this provision, EPA has
                                                                                                                              complete request remain applicable
                                                  applicable requirements under section                                                                                                        required certain states to establish
                                                                                                                              until a redesignation to attainment is
                                                  110 and part D of title I of the CAA (see                                                                                                    programs to address transport of certain
                                                                                                                              approved, but are not required as a
                                                  section 107(d)(3)(E)(v) of the CAA) and                                                                                                      air pollutants, e.g., NOX SIP call.4
                                                                                                                              prerequisite to redesignation. See
                                                  that the state has a fully approved SIP                                                                                                      However, like many of the 110(a)(2)
                                                                                                                              section 175A(c) of the CAA. Sierra Club
                                                  under section 110(k) of the CAA (see                                                                                                         requirements, the section 110(a)(2)(D)
                                                                                                                              v. EPA, 375 F.3d 537 (7th Cir. 2004). See
                                                  section 107(d)(3)(E)(ii) of the CAA). EPA                                                                                                    SIP requirements are not linked with a
                                                                                                                              also 68 FR 25424, 25427 (May 12, 2003)
                                                  proposes to find that Ohio has a fully                                                                                                       particular area’s ozone designation and
                                                                                                                              (redesignation of the St. Louis/East St.
                                                  approved SIP under section 110(k) of                                                                                                         classification. EPA concludes that the
                                                                                                                              Louis area to attainment of the 1-hour
                                                  the CAA. Additionally, EPA proposes to                                                                                                       SIP requirements linked with the area’s
                                                                                                                              ozone NAAQS).
                                                  find that the Ohio SIP satisfies the                                                                                                         ozone designation and classification are
                                                  criterion that it meet applicable SIP                                       1. Ohio Has Met All Applicable
                                                  requirements, for purposes of                                               Requirements of Section 110 and Part D                             4 On October 27, 1992 (63 FR 57356), EPA issued

                                                  redesignation, under section 110 and                                        of the CAA Applicable to the Columbus                            a NOX SIP call requiring the District of Columbia
                                                                                                                                                                                               and 22 states to reduce emissions of NOX in order
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                                                  part D of title I of the CAA                                                Area for Purposes of Redesignation
                                                                                                                                                                                               to reduce the transport of ozone and ozone
                                                  (requirements specific to nonattainment                                     a. Section 110 General Requirements for                          precursors. In compliance with EPA’s NOX SIP call,
                                                  areas for the 2008 ozone NAAQS). In                                         Implementation Plans                                             Ohio developed rules governing the control of NOX
                                                  making these proposed determinations,                                                                                                        emissions from Electric Generating Units (EGUs),
                                                  EPA ascertained which CAA                                                     Section 110(a)(2) of the CAA                                   major non-EGU industrial boilers and turbines, and
                                                                                                                              delineates the general requirements for                          major cement kilns. EPA approved Ohio’s rules as
                                                  requirements are applicable to the                                                                                                           fulfilling Phase I of the NOX SIP Call on August 5,
                                                                                                                              a SIP. Section 110(a)(2) provides that                           2003 (68 FR 46089) and June 27, 2005 (70 FR
                                                    3 The monitor ozone design value for the monitor                          the SIP must have been adopted by the                            36845), and as meeting Phase II of the NOX SIP Call
                                                  with the highest 3-year averaged concentration.                             state after reasonable public notice and                         on February 4, 2008 (73 FR 6427).



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                                                  66582             Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules

                                                  the relevant measures to evaluate when                  b. Part D Requirements                                described in a memorandum from Mary
                                                  reviewing a redesignation request for                     Section 172(c) of the CAA sets forth                Nichols, Assistant Administrator for Air
                                                  the area. The section 110(a)(2)(D)                      the basic requirements of air quality                 and Radiation, dated October 14, 1994,
                                                  requirements, where applicable,                         plans for states with nonattainment                   entitled, ‘‘Part D New Source Review
                                                  continue to apply to a state regardless of              areas that are required to submit them                Requirements for Areas Requesting
                                                  the designation of any one particular                   pursuant to section 172(b). Subpart 2 of              Redesignation to Attainment.’’ Ohio has
                                                  area within the state. Thus, we believe                 part D, which includes section 182 of                 demonstrated that the Columbus area
                                                  these requirements are not applicable                   the CAA, establishes specific                         will be able to maintain the standard
                                                  requirements for purposes of                            requirements for ozone nonattainment                  without part D NSR in effect; therefore,
                                                  redesignation. See 65 FR 37890 (June                    areas depending on the areas’                         EPA concludes that the state need not
                                                  15, 2000), 66 FR 50399 (October 19,                     nonattainment classifications.                        have a fully approved part D NSR
                                                  2001), 68 FR 25418, 25426–27 (May 13,                     The Columbus area was classified as                 program prior to approval of the
                                                  2003).                                                  marginal under subpart 2 for the 2008                 redesignation request. See rulemakings
                                                                                                          ozone NAAQS. As such, the area is                     for Detroit, Michigan (60 FR 12467–
                                                     In addition, EPA believes that other
                                                                                                          subject to the subpart 1 requirements                 12468, March 7, 1995); Cleveland-
                                                  section 110 elements that are neither
                                                                                                          contained in section 172(c) and section               Akron-Lorain, Ohio (61 FR 20458,
                                                  connected with nonattainment plan
                                                                                                          176. Similarly, the area is subject to the            20469–20470, May 7, 1996); Louisville,
                                                  submissions nor linked with an area’s
                                                                                                          subpart 2 requirements contained in                   Kentucky (66 FR 53665, October 23,
                                                  ozone attainment status are not
                                                                                                          section 182(a) (marginal nonattainment                2001); and Grand Rapids, Michigan (61
                                                  applicable requirements for purposes of
                                                                                                          area requirements). A thorough                        FR 31834–31837, June 21, 1996). Ohio’s
                                                  redesignation. The area will still be
                                                                                                          discussion of the requirements                        PSD program will become effective in
                                                  subject to these requirements after the
                                                                                                          contained in section 172(c) and 182 can               the Columbus area upon redesignation
                                                  area is redesignated to attainment of the
                                                                                                          be found in the General Preamble for                  to attainment. EPA approved Ohio’s
                                                  2008 ozone NAAQS. The section 110
                                                                                                          Implementation of Title I (57 FR 13498).              PSD program on January 22, 2003 (68
                                                  and part D requirements which are                                                                             FR 2909) and February 25, 2010 (75 FR
                                                  linked with a particular area’s                         i. Subpart 1 Section 172 Requirements                 8496).
                                                  designation and classification are the                                                                          Section 172(c)(6) requires the SIP to
                                                  relevant measures to evaluate in                           As provided in subpart 2, for marginal
                                                                                                          ozone nonattainment areas such as the                 contain control measures necessary to
                                                  reviewing a redesignation request. This                                                                       provide for attainment of the NAAQS.
                                                  approach is consistent with EPA’s                       Columbus area, the specific
                                                                                                          requirements of section 182(a) apply in               Because attainment has been reached,
                                                  existing policy on applicability (i.e., for                                                                   no additional measures are needed to
                                                  redesignations) of conformity and                       lieu of the attainment planning
                                                                                                          requirements that would otherwise                     provide for attainment.
                                                  oxygenated fuels requirements, as well                                                                          Section 172(c)(7) requires the SIP to
                                                  as with section 184 ozone transport                     apply under section 172(c), including
                                                                                                          the attainment demonstration and                      meet the applicable provisions of
                                                  requirements. See Reading,                                                                                    section 110(a)(2). As noted above, we
                                                  Pennsylvania proposed and final                         reasonably available control measures
                                                                                                          (RACM) under section 172(c)(1),                       believe the Ohio SIP meets the
                                                  rulemakings, 61 FR 53174–53176                                                                                requirements of section 110(a)(2) for
                                                  (October 10, 1996) and 62 FR 24826                      reasonable further progress (RFP) under
                                                                                                          section 172(c)(2), and contingency                    purposes of redesignation.
                                                  (May 7, 1997); Cleveland-Akron-
                                                                                                          measures under section 172(c)(9). 42                  ii. Section 176 Conformity
                                                  Loraine, Ohio final rulemaking, 61 FR
                                                                                                          U.S.C. 7511a(a).                                      Requirements
                                                  20458 (May 7, 1996); and Tampa,
                                                                                                             Section 172(c)(3) requires submission
                                                  Florida final rulemaking, 60 FR 62748                                                                            Section 176(c) of the CAA requires
                                                                                                          and approval of a comprehensive,
                                                  (December 7, 1995). See also the                                                                              states to establish criteria and
                                                                                                          accurate and current inventory of actual
                                                  discussion of this issue in the                                                                               procedures to ensure that Federally
                                                                                                          emissions. This requirement is
                                                  Cincinnati, Ohio ozone redesignation                                                                          supported or funded projects conform to
                                                                                                          superseded by the inventory
                                                  (65 FR 37890, June 19, 2000), and the                                                                         the air quality planning goals in the
                                                                                                          requirement in section 182(a)(1)
                                                  Pittsburgh, Pennsylvania ozone                                                                                applicable SIP. The requirement to
                                                                                                          discussed below.
                                                  redesignation (66 FR 50399, October 19,                    Section 172(c)(4) requires the                     determine conformity applies to
                                                  2001).                                                  identification and quantification of                  transportation plans, programs and
                                                     We have reviewed Ohio’s SIP and                      allowable emissions for major new and                 projects that are developed, funded or
                                                  have concluded that it meets the general                modified stationary sources in an area,               approved under title 23 of the United
                                                  SIP requirements under section 110 of                   and section 172(c)(5) requires source                 States Code (U.S.C.) and the Federal
                                                  the CAA, to the extent those                            permits for the construction and                      Transit Act (transportation conformity)
                                                  requirements are applicable for                         operation of new and modified major                   as well as to all other Federally
                                                  purposes of redesignation. On October                   stationary sources anywhere in the                    supported or funded projects (general
                                                  16, 2014 (79 FR 62019), EPA approved                    nonattainment area. EPA approved                      conformity). State transportation
                                                  elements of the SIP submitted by Ohio                   Ohio’s NSR program on January 10,                     conformity SIP revisions must be
                                                  to meet the requirements of section 110                 2003 (68 FR 1366) and February 25,                    consistent with Federal conformity
                                                  for the 2008 ozone standard. The                        2010 (75 FR 8496). Nonetheless, EPA                   regulations relating to consultation,
                                                  requirements of section 110(a)(2),                      has determined that, since PSD                        enforcement and enforceability that EPA
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                                                  however, are statewide requirements                     requirements will apply after                         promulgated pursuant to its authority
                                                  that are not linked to the 8-hour ozone                 redesignation, areas being redesignated               under the CAA.
                                                  nonattainment status of the Columbus                    need not comply with the requirement                     EPA interprets the conformity SIP
                                                  area. Therefore, EPA concludes that                     that a NSR program be approved prior                  requirements 5 as not applying for
                                                  these infrastructure requirements are                   to redesignation, provided that the area                 5 CAA section 176(c)(4)(E) requires states to
                                                  not applicable requirements for                         demonstrates maintenance of the                       submit revisions to their SIPs to reflect certain
                                                  purposes of review of the state’s 8-hour                NAAQS without part D NSR. A more                      Federal criteria and procedures for determining
                                                  ozone redesignation request.                            detailed rationale for this view is                   transportation conformity. Transportation



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                                                                    Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules                                         66583

                                                  purposes of evaluating a redesignation                  the Columbus area is not subject to the               measures it may approve in conjunction
                                                  request under section 107(d) because                    section 182(a)(2)(B) requirement                      with a redesignation action (see 68 FR
                                                  state conformity rules are still required               because the Columbus area was                         25426 (May 12, 2003) and citations
                                                  after redesignation and Federal                         designated as nonattainment for the                   therein).
                                                  conformity rules apply where state                      2008 ozone standard after the enactment
                                                                                                          of the 1990 CAA amendments.                           C. Are the air quality improvements in
                                                  conformity rules have not been
                                                                                                             Regarding the source permitting and                the Columbus area due to permanent
                                                  approved. See Wall v. EPA, 265 F.3d
                                                                                                          offset requirements of section                        and enforceable emission reductions?
                                                  426 (6th Cir. 2001) (upholding this
                                                  interpretation); see also 60 FR 62748                   182(a)(2)(C) and section 182(a)(4), Ohio                 To support the redesignation of an
                                                  (December 7, 1995) (redesignation of                    currently has a fully-approved part D                 area from nonattainment to attainment,
                                                  Tampa, Florida). Nonetheless, Ohio has                  NSR program in place. EPA approved                    section 107(d)(3)(E)(iii) of the CAA
                                                  an approved conformity SIP for the                      Ohio’s PSD program on January 22,                     requires EPA to determine that the air
                                                  Columbus area. See 80 FR 11133 (March                   2003 (68 FR 2909) and February 25,                    quality improvement in the area is due
                                                  2, 2015).                                               2010 (75 FR 8496). As discussed above,                to permanent and enforceable
                                                                                                          Ohio has demonstrated that the                        reductions in emissions resulting from
                                                  iii. Section 182(a) Requirements                        Columbus area will be able to maintain                the implementation of the SIP and
                                                     Section 182(a)(1) requires states to                 the standard without part D NSR in                    applicable Federal air pollution control
                                                  submit a comprehensive, accurate, and                   effect; therefore, EPA concludes that the             regulations and other permanent and
                                                  current inventory of actual emissions                   state need not have a fully approved                  other permanent and enforceable
                                                  from sources of VOC and NOX emitted                     part D NSR program prior to approval of               emission reductions. EPA has
                                                  within the boundaries of the ozone                      the redesignation request. The state’s                determined that Ohio has demonstrated
                                                  nonattainment area. Ohio EPA                            PSD program will become effective in                  that that the observed ozone air quality
                                                  submitted a 2008 base year emissions                    the Columbus area upon redesignation                  improvement in the Columbus area is
                                                  inventory for the Columbus area on July                 to attainment.                                        due to permanent and enforceable
                                                  18, 2014. EPA approved this emissions                      Section 182(a)(3) requires states to               reductions in VOC and NOX emissions
                                                  inventory as a revision to the Ohio SIP                 submit periodic emission inventories                  resulting from state measures adopted
                                                  on March 10, 2016 (81 FR 12591).                        and a revision to the SIP to require the              into the SIP and Federal measures.
                                                     Under section 182(a)(2)(A), states                   owners or operators of stationary                        In making this demonstration, the
                                                  with ozone nonattainment areas that                     sources to annually submit emission                   state has calculated the change in
                                                  were designated prior to the enactment                  statements documenting actual VOC                     emissions between 2011 and 2014. The
                                                  of the 1990 CAA amendments were                         and NOX emissions. As discussed below                 reduction in emissions and the
                                                  required to submit, within six months of                in section IV.D.4. of this proposed rule,             corresponding improvement in air
                                                  classification, all rules and corrections               Ohio will continue to update its                      quality over this time period can be
                                                  to existing VOC reasonably available                    emissions inventory at least once every               attributed to a number of regulatory
                                                  control technology (RACT) rules that                    three years. With regard to stationary                control measures that the Columbus
                                                  were required under section 172(b)(3)                   source emission statements, EPA                       area and upwind areas have
                                                  prior to the 1990 CAA amendments. The                   approved Ohio’s emission statement                    implemented in recent years. In
                                                  Columbus area is not subject to the                     rule on September 27, 2007 (72 FR                     addition, Ohio EPA provided an
                                                  section 182(a)(2) RACT ‘‘fix up’’                       54844). On July 18, 2014, Ohio certified              analysis to demonstrate the
                                                  requirement for the 2008 ozone NAAQS                    that this approved SIP regulation                     improvement in air quality was not due
                                                  because it was designated as                            remains in place and remains                          to unusually favorable meteorology.
                                                  nonattainment for this standard after the               enforceable for the 2008 ozone standard.              Based on the information summarized
                                                  enactment of the 1990 CAA                               EPA approved Ohio’s certification on                  below, Ohio has adequately
                                                  amendments and because Ohio                             March 10, 2016 (81 FR 12591).                         demonstrated that the improvement in
                                                                                                            The Columbus area has satisfied all
                                                  complied with this requirement for the                                                                        air quality is due to permanent and
                                                                                                          applicable requirements for purposes of
                                                  Columbus area under the prior 1-hour                                                                          enforceable emissions reductions.
                                                                                                          redesignation under section 110 and
                                                  ozone NAAQS. See 59 FR 23796 (May
                                                                                                          part D of title I of the CAA.                         1. Permanent and Enforceable Emission
                                                  9, 1994) and 60 FR 15235 (March 23,
                                                                                                                                                                Controls Implemented
                                                  1995).                                                  2. The Columbus Area Has a Fully
                                                     Section 182(a)(2)(B) requires each                   Approved SIP for Purposes of                          a. Regional NOX Controls
                                                  state with a marginal ozone                             Redesignation Under Section 110(k) of                   Clean Air Interstate Rule (CAIR)/Cross
                                                  nonattainment area that implemented or                  the CAA                                               State Air Pollution Rule (CSAPR). CAIR
                                                  was required to implement a vehicle                        Ohio has adopted and submitted and                 created regional cap-and-trade programs
                                                  inspection and maintenance (I/M)                        EPA has approved at various times,                    to reduce sulfur dioxide (SO2) and NOX
                                                  program prior to the 1990 CAA                           provisions addressing the various SIP                 emissions in 27 eastern states, including
                                                  amendments to submit a SIP revision for                 elements applicable for the ozone                     Ohio, that contributed to downwind
                                                  an I/M program no less stringent than                   NAAQS. As discussed above, EPA has                    nonattainment and maintenance of the
                                                  that required prior to the 1990 CAA                     fully approved the Ohio SIP for the                   1997 8-hour ozone NAAQS and the
                                                  amendments or already in the SIP at the                 Columbus area under section 110(k) for                1997 fine particulate matter (PM2.5)
                                                  time of the CAA amendments,                             all requirements applicable for purposes              NAAQS. See 70 FR 25162 (May 12,
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                                                  whichever is more stringent. For the                    of redesignation under the 2008 ozone                 2005). EPA approved Ohio’s CAIR
                                                  purposes of the 2008 ozone standard                     NAAQS. EPA may rely on prior SIP                      regulations into the Ohio SIP on
                                                  and the consideration of Ohio’s                         approvals in approving a redesignation                February 1, 2008 (73 FR 6034), and
                                                  redesignation request for this standard,                request (see the Calcagni memorandum                  September 25, 2009 (74 FR 48857). In
                                                                                                          at page 3; Southwestern Pennsylvania                  2008, the United States Court of
                                                  conformity SIPs are different from SIPs requiring
                                                  the development of Motor Vehicle Emission
                                                                                                          Growth Alliance v. Browner, 144 F.3d                  Appeals for the District of Columbia
                                                  Budgets (MVEBs), such as control strategy SIPs and      984, 989–990 (6th Cir. 1998); Wall v.                 Circuit (D.C. Circuit) initially vacated
                                                  maintenance plans.                                      EPA, 265 F.3d 426), plus any additional               CAIR, North Carolina v. EPA, 531 F.3d


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                                                  66584             Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules

                                                  896 (D.C. Cir. 2008), but ultimately                    when the design value for the area was    per year, respectively, when fully
                                                  remanded the rule to EPA without                        above the NAAQS) to 2014 (a year when     implemented. In addition, EPA
                                                  vacatur to preserve the environmental                   the design value was below the NAAQS)     estimates that beginning in 2007, a
                                                  benefits provided by CAIR, North                        is not due to CSAPR emissions             reduction of 30,000 tons per year of
                                                  Carolina v. EPA, 550 F.3d 1176, 1178                    reductions because, as noted above,       NOX will result from the benefits of
                                                  (D.C. Cir. 2008). On August 8, 2011 (76                 CSAPR did not go into effect until        sulfur control on heavy-duty gasoline
                                                  FR 48208), acting on the D.C. Circuit’s                 January 1, 2015, after the area was       vehicles. Some of these emission
                                                  remand, EPA promulgated CSAPR to                        already attaining the standard. As a      reductions occurred by the attainment
                                                  replace CAIR and thus to address the                    general matter, because CSAPR is          years and additional emission
                                                  interstate transport of emissions                       CAIR’s replacement, emissions             reductions will occur throughout the
                                                  contributing to nonattainment and                       reductions associated with CAIR will for  maintenance period, as older vehicles
                                                  interfering with maintenance of the two                 most areas be made permanent and          are replaced with newer, compliant
                                                  air quality standards covered by CAIR as                enforceable through implementation of     model years.
                                                  well as the 2006 PM2.5 NAAQS. CSAPR                     CSAPR. In addition, there are no EGU         Tier 3 Emission Standards for
                                                  requires substantial reductions of SO2                  sources in the Columbus area.             Vehicles and Gasoline Sulfur Standards.
                                                  and NOX emissions from electric                         Furthermore, as laid out in the State’s   On April 28, 2014 (79 FR 23414), EPA
                                                  generating units (EGUs) in 28 states in                 maintenance demonstration, no EGUs        promulgated Tier 3 motor vehicle
                                                  the Eastern United States.                              are expected to locate in the area        emission and fuel standards to reduces
                                                     The D.C. Circuit’s initial vacatur of                throughout the maintenance period.        both tailpipe and evaporative emissions
                                                  CSAPR 6 was reversed by the United                         Given the particular facts and         and to further reduce the sulfur content
                                                  States Supreme Court on April 29, 2014,                 circumstances associated with the         in fuels. The rule will be phased in
                                                  and the case was remanded to the D.C.                   Columbus area, EPA does not believe       between 2017 and 2025. Tier 3 sets new
                                                  Circuit to resolve remaining issues in                  that the D.C. Circuit’s invalidation of   tailpipe standards for the sum of VOC
                                                  accordance with the high court’s ruling.                Ohio’s CSAPR Phase 2 NOX ozone            and NOX and for particulate matter. The
                                                  EPA v. EME Homer City Generation,                       season budget, which replaced CAIR’s      VOC and NOX tailpipe standards for
                                                  L.P., 134 S. Ct. 1584 (2014). On remand,                NOX ozone season budget, is a bar to      light-duty vehicles represent
                                                  the D.C. Circuit affirmed CSAPR in most                 EPA’s redesignation of the Columbus       approximately an 80% reduction from
                                                  respects, but invalidated without                       area for the 2008 ozone NAAQS.            today’s fleet average and a 70%
                                                  vacating some of the CSAPR budgets as                                                             reduction in per-vehicle particulate
                                                                                                          b. Federal Emission Control Measures
                                                  to a number of states. EME Homer City                                                             matter (PM) standards. Heavy-duty
                                                  Generation, L.P. v. EPA, 795 F.3d 118                      Reductions in VOC and NOX              tailpipe standards represent about a
                                                  (D.C. Cir. 2015). The remanded budgets                  emissions have occurred statewide and     60% reduction in both fleet average
                                                  include the Phase 2 NOX ozone season                    in upwind areas as a result of Federal    VOC and NOX and per-vehicle PM
                                                  emissions budgets for Ohio. This                        emission control measures, with           standards. The evaporative emissions
                                                  litigation ultimately delayed                           additional emission reductions expected requirements in the rule will result in
                                                  implementation of CSAPR for three                       to occur in the future. Federal emission  approximately a 50 percent reduction
                                                  years, from January 1, 2012, when                       control measures include the following. from current standards and apply to all
                                                  CSAPR’s cap-and-trade programs were                        Tier 2 Emission Standards for          light-duty and onroad gasoline-powered
                                                  originally scheduled to replace the CAIR                Vehicles and Gasoline Sulfur Standards. heavy-duty vehicles. Finally, the rule
                                                  cap-and-trade programs, to January 1,                   On February 10, 2000 (65 FR 6698), EPA lowers the sulfur content of gasoline to
                                                  2015. Thus, the rule’s Phase 2 budgets                  promulgated Tier 2 motor vehicle          an annual average of 10 ppm by January
                                                  were originally promulgated to begin on                 emission standards and gasoline sulfur    2017. While these reductions did not
                                                  January 1, 2014, and are now scheduled                  control requirements. These emission      aid the area in attaining the standard,
                                                  to begin on January 1, 2017. CSAPR will                 control requirements result in lower      emission reductions will occur during
                                                  continue to operate under the existing                  VOC and NOX emissions from new cars       the maintenance period.
                                                  emissions budgets until EPA addresses                   and light duty trucks, including sport       Heavy-Duty Diesel Engine Rules. In
                                                  the D.C. Circuit’s remand.                              utility vehicles. With respect to fuels,  July 2000, EPA issued a rule for on-
                                                     While the reduction in NOX emissions                 this rule required refiners and importers highway heavy-duty diesel engines that
                                                  from the implementation of CSAPR will                   of gasoline to meet lower standards for   includes standards limiting the sulfur
                                                  result in lower concentrations of                       sulfur in gasoline, which were phased     content of diesel fuel. Emissions
                                                  transported ozone entering the                          in between 2004 and 2006. By 2006,        standards for NOX, VOC and PM were
                                                  Columbus area throughout the                            refiners were required to meet a 30 ppm phased in between model years 2007
                                                  maintenance period, EPA is proposing                    average sulfur level, with a maximum      and 2010. In addition, the rule reduced
                                                  to approve the redesignation of the                     cap of 80 ppm. This reduction in fuel     the highway diesel fuel sulfur content to
                                                  Columbus area without relying on those                  sulfur content ensures the effectiveness  15 parts per million by 2007, leading to
                                                  measures within Ohio as having led to                   of low emission-control technologies.     additional reductions in combustion
                                                  attainment of the 2008 ozone NAAQS or                   The Tier 2 tailpipe standards             NOX and VOC emissions. EPA has
                                                  contributing to maintenance of that                     established in this rule were phased in   estimated future year emission
                                                  standard. In so doing, we are proposing                 for new vehicles between 2004 and         reductions due to implementation of
                                                  to determine that the D.C. Circuit’s                    2009. EPA estimates that, when fully      this rule. Nationally, EPA estimated that
                                                                                                          implemented, this rule will cut NOX       2015 NOX and VOC emissions would
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                                                  invalidation of the Ohio CSAPR Phase
                                                  2 ozone season NOX emissions budget                     and VOC emissions from light-duty         decrease by 1,260,000 tons and 54,000
                                                  does not bar today’s proposed                           vehicles and light-duty trucks by         tons, respectively. Nationally, EPA
                                                  redesignation.                                          approximately 76 and 28 percent,          estimated that 2030 NOX and VOC
                                                     The improvement in ozone air quality                 respectively. NOX and VOC reductions      emissions will decrease by 2,570,000
                                                  in the Columbus area from 2011 (a year                  from medium-duty passenger vehicles       tons and 115,000 tons, respectively. As
                                                                                                          included as part of the Tier 2 vehicle    projected by these estimates and
                                                    6 EME Homer City Generation, L.P. v. EPA, 696         program are estimated to be               demonstrated in the on-road emission
                                                  F.3d 7, 38 (D.C. Cir. 2012).                            approximately 37,000 and 9,500 tons       modeling for the Columbus area, some


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                                                                          Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules                                                 66585

                                                  of these emission reductions occurred                                 on January 14, 2013 (78 FR 6674). EPA                  this represents actual data Ohio
                                                  by the attainment years and additional                                estimated that when this rule is fully                 reported to EPA for the 2011 National
                                                  emission reductions will occur                                        implemented in 2013, NOX and VOC                       Emissions inventory (NEI). Because
                                                  throughout the maintenance period, as                                 emissions from these engines will be                   emissions from state inventory
                                                  older vehicles are replaced with newer,                               reduced by approximately 9,600 and                     databases, the NEI, and the Ozone
                                                  compliant model years.                                                36,000 tons per year, respectively.                    NAAQS Emissions Modeling platform
                                                    Nonroad Diesel Rule. On June 29,                                       Category 3 Marine Diesel Engine                     are annual totals, tons per summer day
                                                  2004 (69 FR 38958), EPA issued a rule                                 Standards. On April 30, 2010 (75 FR                    were derived according to EPA’s
                                                  adopting emissions standards for                                      22896) EPA issued emission standards                   guidance document ‘‘Temporal
                                                  nonroad diesel engines and sulfur                                     for marine compression-ignition engines                Allocation of Annual Emissions Using
                                                  reductions in nonroad diesel fuel. This                               at or above 30 liters per cylinder. Tier               EMCH Temporal Profiles’’ dated April
                                                  rule applies to diesel engines used                                   2 emission standards apply beginning in                29 2002, using the temporal allocation
                                                  primarily in construction, agricultural,                              2011, and are expected to result in a 15               references accompanying the 2011v6.1
                                                  and industrial applications. Emission                                 to 25 percent reduction in NOX                         modeling inventory files. Onroad
                                                  standards are phased in for 2008                                      emissions from these engines. Final Tier               mobile source emissions were
                                                  through 2015 model years based on                                     3 emission standards apply beginning in
                                                                                                                                                                               developed in conjunction with the Ohio
                                                  engine size. The SO2 limits for nonroad                               2016 and are expected to result in
                                                                                                                                                                               EPA, the Ohio Department of
                                                  diesel fuels were phased in from 2007                                 approximately an 80 percent reduction
                                                                                                                                                                               Transportation, the Mid-Ohio Regional
                                                  through 2012. EPA estimates that when                                 in NOX from these engines. Some of
                                                                                                                                                                               Planning Commission (MORPC), and
                                                  fully implemented, compliance with                                    these emission reductions occurred by
                                                                                                                                                                               the Licking County Area Transportation
                                                  this rule will cut NOX emissions from                                 the attainment years and additional
                                                  these nonroad diesel engines by                                                                                              (LCAT) and were calculated from
                                                                                                                        emission reductions will occur
                                                  approximately 90 percent. Some of                                     throughout the maintenance period.                     emission factors produced by EPA’s
                                                  these emission reductions occurred by                                    Oil and Natural Gas Industry                        Motor Vehicle Emission Simulator
                                                  the attainment years and additional                                   Standards. On August 16, 2012 (77 FR                   (MOVES) model and data extracted from
                                                  emission reductions will occur                                        49490) EPA finalized several rules that                the region’s travel-demand model.
                                                  throughout the maintenance period.                                    apply to the oil and natural gas sector.                  For the attainment inventory, Ohio is
                                                     Nonroad Spark-Ignition Engines and                                 These rule set standards for natural gas               using 2014, one of the years the
                                                  Recreational Engine Standards. On                                     wells that are hydraulically fractured                 Columbus area monitored attainment of
                                                  November 8, 2002 (67 FR 68242), EPA                                   along with several other sources in the                the 2008 ozone standard. Because the
                                                  adopted emission standards for large                                  oil and natural gas sector. When these                 2014 NEI inventory was not available at
                                                  spark-ignition engines such as those                                  rules are fully implemented in 2015,                   the time Ohio EPA was compiling the
                                                  used in forklifts and airport ground-                                 EPA estimates nationally that VOC                      redesignation request, the state was
                                                  service equipment; recreational vehicles                              emissions will be reduced by 190,000 to                unable to use the 2014 NEI inventory
                                                  such as off-highway motorcycles, all-                                 290,000 tons annually.                                 directly. For area, nonroad mobile, and
                                                  terrain vehicles, and snowmobiles; and                                                                                       AIR, 2014 emissions were derived by
                                                  recreational marine diesel engines.                                   c. Control Measures Specific to the
                                                                                                                        Columbus Area                                          interpolating between 2011 and 2018
                                                  These emission standards are phased in                                                                                       Ozone NAAQS Emissions Modeling
                                                  from model year 2004 through 2012.                                       While there are no EGUs in the                      platform inventories. The point source
                                                  When fully implemented, EPA estimates                                 Columbus area, the Picway Power Plant                  sector for the 2014 inventory was
                                                  an overall 72 percent reduction in VOC                                is located in Pickaway County,                         developed using actual 2014 point
                                                  emissions from these engines and an 80                                approximately 1.25 kilometers from the                 source emissions reported to the state
                                                  percent reduction in NOX emissions.                                   southern border of Franklin County.                    database, which serve as the basis for
                                                  Some of these emission reductions                                     This plant permanently shut down in                    the point source emissions reported to
                                                  occurred by the attainment years and                                  May of 2015. The coal-fired boiler did                 EPA for the NEI. Summer day
                                                  additional emission reductions will                                   not operate in 2014 and between 2011                   inventories were derived for these
                                                  occur throughout the maintenance                                      and 2013 NOX emissions dropped from                    sectors using the methodology described
                                                  period.                                                               0.57 tons per summer day (TPSD) in                     above. Finally, onroad mobile source
                                                    National Emission Standards for                                     2011 to 0.45 TPSD in 2013.
                                                  Hazardous Air Pollutants (NESHAP) for                                                                                        emissions were developed using the
                                                  Reciprocating Internal Combustion                                     2. Emission Reductions                                 same methodology described above for
                                                  Engines. On March 3, 2010 (75 FR                                         Ohio is using a 2011 inventory as the               the 2011 inventory.
                                                  9648), EPA issued a rule to reduce                                    nonattainment base year. Area, nonroad                    Using the inventories described
                                                  hazardous air pollutants from existing                                mobile, airport related emissions (AIR),               above, Ohio’s submittal documents
                                                  diesel powered stationary reciprocating                               and point source emissions (EGUs and                   changes in VOC and NOX emissions
                                                  internal combustion engines, also                                     non-EGUs) were collected from the                      from 2011 to 2014 for the Columbus
                                                  known as compression ignition engines.                                Ozone NAAQS Implementation                             area. Emissions data are shown in
                                                  Amendments to this rule were finalized                                Modeling platform (2011v6.1). For 2011,                Tables 2 through 6.

                                                                                TABLE 2—COLUMBUS AREA NOX EMISSIONS FOR NONATTAINMENT YEAR 2011 (TPSD)
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                                                                           County                                      Point                 AIR             Nonroad             Area            Onroad       Total

                                                  Delaware ..................................................                  0.08                0.01               4.39              2.82         16.26        23.56
                                                  Fairfield ....................................................               4.52                0.00               2.79              0.75          9.54        17.60
                                                  Franklin ....................................................                2.65                1.48              16.12              8.76        134.04       163.05
                                                  Knox .........................................................               0.08                0.00               1.36              0.50          2.90         4.84
                                                  Licking ......................................................               1.30                0.00               2.57              0.98         17.45        22.30
                                                  Madison ....................................................                 0.01                0.00               1.66              0.62          7.09         9.38




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                                                  66586                    Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules

                                                                     TABLE 2—COLUMBUS AREA NOX EMISSIONS FOR NONATTAINMENT YEAR 2011 (TPSD)—Continued
                                                                            County                                      Point                 AIR             Nonroad             Area            Onroad           Total

                                                        Area Totals .......................................                     8.64                1.49              28.89              14.43       187.28           240.73


                                                                                TABLE 3—COLUMBUS AREA VOC EMISSIONS FOR NONATTAINMENT YEAR 2011 (TPSD)
                                                                            County                                      Point                 AIR             Nonroad             Area            Onroad           Total

                                                  Delaware ..................................................                   0.34                0.01               3.31               4.37           7.14          15.17
                                                  Fairfield ....................................................                0.49                0.01               1.25               4.71           4.82          11.28
                                                  Franklin ....................................................                 3.06                0.35              11.76              28.36          70.65         114.18
                                                  Knox .........................................................                0.20                0.01               0.97               3.42           1.36           5.96
                                                  Licking ......................................................                0.45                0.01               2.17               6.65           8.03          17.31
                                                  Madison ....................................................                  0.06                0.01               0.82               2.50           2.83           6.22

                                                        Area Totals .......................................                     4.60                0.40              20.28              50.01          94.83         170.12


                                                                                     TABLE 4—COLUMBUS AREA NOX EMISSIONS FOR ATTAINMENT YEAR 2014 (TPSD)
                                                                            County                                      Point                 AIR             Nonroad             Area            Onroad           Total

                                                  Delaware ..................................................                   0.07                0.01               3.45               2.67          11.76          17.96
                                                  Fairfield ....................................................                3.99                0.00               2.20               0.76           7.19          14.14
                                                  Franklin ....................................................                 1.36                1.59              12.49               8.58          98.88         122.90
                                                  Knox .........................................................                0.12                0.00               1.11               0.51           2.18           3.92
                                                  Licking ......................................................                0.93                0.00               2.05               1.00          13.33          17.31
                                                  Madison ....................................................                  0.01                0.00               1.38               0.60           5.31           7.30

                                                        Area Totals .......................................                     6.48                1.60              22.68              14.12       138.65           183.53


                                                                                    TABLE 5—COLUMBUS AREA VOC EMISSIONS FOR ATTAINMENT YEAR 2014 (TPSD)
                                                                            County                                      Point                 AIR             Nonroad             Area            Onroad           Total

                                                  Delaware ..................................................                   0.36                0.01               2.86               4.27           5.00          12.50
                                                  Fairfield ....................................................                0.42                0.01               1.08               4.65           3.12           9.28
                                                  Franklin ....................................................                 2.22                0.37              10.28              27.81          50.81          91.49
                                                  Knox .........................................................                0.19                0.01               0.82               3.39           1.02           5.43
                                                  Licking ......................................................                0.69                0.01               1.85               6.57           6.00          15.12
                                                  Madison ....................................................                  0.14                0.01               0.71               2.46           2.11           5.43

                                                        Area Totals .......................................                     4.02                0.42              17.60              49.15          68.06         139.25


                                                            TABLE 6—CHANGE IN NOX AND VOC EMISSIONS IN THE COLUMBUS AREA BETWEEN 2011 AND 2014 (TPSD)
                                                                                                                                             NOX                                                  VOC

                                                                                                                                                             Net change                                          Net change
                                                                                                                        2011                 2014                                 2011             2014
                                                                                                                                                            (2011–2014)                                         (2011–2014)

                                                  Point .........................................................            8.64                 6.48               ¥2.16                4.60           4.02         ¥0.58
                                                  AIR ...........................................................            1.49                 1.60                0.11                0.40           0.42          0.02
                                                  Nonroad ...................................................               28.89                22.68               ¥6.21               20.28          17.60         ¥2.68
                                                  Area ..........................................................           14.43                14.12               ¥0.31               50.01          49.15         ¥0.86
                                                  Onroad .....................................................             187.28               138.65              ¥48.63               94.83          68.06        ¥26.77

                                                        Total ..................................................           240.73               183.53              ¥57.20           170.12          139.25          ¥30.87



                                                    As shown in Table 6, NOX and VOC                                     occurred and the year attainment was                     First, the maximum 8-hour ozone
                                                  emissions in the Columbus area
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                                                                                                                         achieved, is due to permanent and                      concentration at each monitor in the
                                                  declined by 57.20 TPSD and 30.87                                       enforceable emission reductions and not                Columbus area was compared to the
                                                  TPSD, respectively, between 2011 and                                   unusually favorable meteorology, an                    number of days where the maximum
                                                  2014.                                                                  analysis was performed by Ohio EPA.                    temperature was greater than or equal to
                                                  3. Meteorology                                                         Ohio analyzed the maximum fourth-                      80 °F. While there is a clear trend in
                                                                                                                         high 8-hour ozone value for May, June,                 decreasing ozone concentrations at all
                                                     To further support Ohio’s                                           July, August, and September, for years                 monitors, there is no such trend in the
                                                  demonstration that the improvement in
                                                                                                                         2000 to 2015.                                          temperature data.
                                                  air quality between the year violations


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                                                                          Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules                                                   66587

                                                    Ohio EPA also examined the                                          approves a redsignation to attainment.                 emissions, by source category, are
                                                  relationship between the average                                      Eight years after the redesignation, the               summarized in Tables 4 and 5 above.
                                                  summer temperature for each year of the                               state must submit a revised maintenance
                                                                                                                                                                               2. Has the state documented
                                                  2000–2015 period and the 4th                                          plan which demonstrates that
                                                                                                                                                                               maintenance of the ozone standard in
                                                  maximum 8-hour ozone concentration.                                   attainment of the NAAQS will continue
                                                                                                                                                                               the Columbus area?
                                                  While there is some correlation between                               for an additional 10 years beyond the
                                                  average summer temperatures and                                       initial 10 year maintenance period. To                    Ohio has demonstrated maintenance
                                                  ozone concentrations, this correlation                                address the possibility of future NAAQS                of the 2008 ozone standard through
                                                  does not exist over the study period.                                 violations, the maintenance plan must                  2030 by assuring that current and future
                                                  The linear regression lines for each data                             contain contingency measures, as EPA                   emissions of VOC and NOX for the
                                                  set demonstrate that the average                                      deems necessary, to assure prompt                      Columbus area remain at or below
                                                  summer temperatures have increased,                                   correction of the future NAAQS                         attainment year emission levels. A
                                                  while ozone concentrations have                                       violation.                                             maintenance demonstration need not be
                                                  decreased. Because the correlation                                       The Calcagni Memorandum provides                    based on modeling. See Wall v. EPA,
                                                  between temperature and ozone                                         further guidance on the content of a                   265 F.3d 426 (6th Cir. 2001), Sierra Club
                                                  formation is well established, these data                             maintenance plan, explaining that a                    v. EPA, 375 F.3d 537 (7th Cir. 2004). See
                                                  suggest that reductions in precursors are                             maintenance plan should address five                   also 66 FR 53094, 53099–53100
                                                  responsible for the reductions in ozone                               elements: (1) An attainment emission                   (October 19, 2001), 68 FR 25413, 25430–
                                                  concentrations in the Columbus area,                                  inventory; (2) a maintenance                           25432 (May 12, 2003).
                                                  and not unusually favorable summer                                    demonstration; (3) a commitment for                       Ohio is using emissions inventories
                                                  temperatures.                                                         continued air quality monitoring; (4) a                for the years 2020 and 2030 to
                                                    Finally, Ohio EPA analyzed the                                      process for verification of continued                  demonstrate maintenance. 2030 is more
                                                  relationship between average                                                                                                 than 10 years after the expected
                                                                                                                        attainment; and (5) a contingency plan.
                                                  summertime relative humidity and                                                                                             effective date of the redesignation to
                                                                                                                        In conjunction with its request to
                                                  average 4th maximum 8-hour ozone                                                                                             attainment and 2020 was selected to
                                                                                                                        redesignate the Columbus area to
                                                  concentrations. The data did not show                                                                                        demonstrate that emissions are not
                                                                                                                        attainment for the 2008 ozone standard,
                                                  a correlation between relative humidity                                                                                      expected to spike in the interim
                                                                                                                        Ohio EPA submitted a SIP revision to
                                                  and ozone concentrations.
                                                                                                                        provide for maintenance of the 2008                    between the attainment year and the
                                                    Ohio EPA’s analyses of meteorological
                                                                                                                        ozone standard through 2030, more than                 final maintenance year. The emissions
                                                  variables associated with ozone
                                                  formation further support Ohio’s                                      10 years after the expected effective date             inventories were developed as described
                                                  demonstration that the improvement in                                 of the redesignation to attainment. As is              below.
                                                  air quality in the Columbus area                                      discussed more fully below, EPA                           To develop the 2020 and 2030
                                                  between the year violations occurred                                  proposes to find that Ohio’s ozone                     inventories, the state collected data from
                                                  and the year attainment was achieved is                               maintenance plan includes the                          the Ozone NAAQS Emissions Modeling
                                                  due to permanent and enforceable                                      necessary components and is proposing                  platform (2011v6.1) inventories for
                                                  emission reductions and not on                                        to approve the maintenance plan as a                   years 2011, 2018 and 2025. 2020
                                                  unusually favorable meteorology.                                      revision of the Ohio SIP.                              emissions for area, nonroad mobile,
                                                                                                                        1. Attainment Inventory                                AIR, and point source sectors were
                                                  D. Does Ohio have a fully approvable                                                                                         derived by interpolating between 2018
                                                  ozone maintenance plan for the                                           EPA is proposing to determine that                  and 2025. 2030 emissions for area,
                                                  Columbus area?                                                        the Columbus area has attained the 2008                nonroad mobile, AIR, and point source
                                                     As one of the criteria for redesignation                           8-hour ozone NAAQS based on                            sectors were derived using the TREND
                                                  to attainment section 107(d)(3)(E)(iv) of                             monitoring data for the period of 2013–                function in Excel. If the trend function
                                                  the CAA requires EPA to determine that                                2015. Ohio EPA selected 2014 as the                    resulted in a negative value the
                                                  the area has a fully approved                                         attainment emissions inventory year to                 emissions were assumed not to change.
                                                  maintenance plan pursuant to section                                  establish attainment emission levels for               Summer day inventories were derived
                                                  175A of the CAA. Section 175A of the                                  VOC and NOX. The attainment                            for these sectors using the methodology
                                                  CAA sets forth the elements of a                                      emissions inventory identifies the levels              described in section IV.C.2. above.
                                                  maintenance plan for areas seeking                                    of emissions in the Columbus area that                 Finally, onroad mobile source emissions
                                                  redesignation from nonattainment to                                   are sufficient to attain the 2008 ozone                were developed in using the same
                                                  attainment. Under section 175A, the                                   NAAQS. The derivation of the                           methodology described in section
                                                  maintenance plan must demonstrate                                     attainment year emissions was                          IV.C.2. above for the 2011 inventory.
                                                  continued attainment of the NAAQS for                                 discussed above in section IV.C.2. of                  Emissions data are shown in Tables 7
                                                  at least 10 years after the Administrator                             this proposed rule. The attainment level               through 11 below.

                                                                           TABLE 7—COLUMBUS AREA NOX EMISSIONS FOR INTERIM MAINTENANCE YEAR 2020 (TPSD)
                                                                           County                                      Point                 AIR             Nonroad             Area            Onroad         Total

                                                  Delaware ..................................................                  0.08                0.01               2.16               2.35         7.79          12.39
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                                                  Fairfield ....................................................               4.39                0.00               1.38               0.76         4.73          11.26
                                                  Franklin ....................................................                2.44                1.85               7.73               8.20        60.59          80.81
                                                  Knox .........................................................               0.08                0.00               0.73               0.52         1.46           2.79
                                                  Licking ......................................................               1.31                0.00               1.31               1.02         8.57          12.21
                                                  Madison ....................................................                 0.01                0.00               0.94               0.56         3.42           4.93

                                                        Area Totals .......................................                    8.31                1.86              14.25              13.41        86.56         124.39




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                                                  66588                       Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules

                                                                               TABLE 8—COLUMBUS AREA VOC EMISSIONS FOR INTERIM MAINTENANCE YEAR 2020 (TPSD)
                                                                               County                                            Point                    AIR                Nonroad            Area                   Onroad             Total

                                                  Delaware ..................................................                             0.32                  0.01                  2.33              4.14                  3.44            10.24
                                                  Fairfield ....................................................                          0.48                  0.01                  0.93              4.52                  2.13             8.07
                                                  Franklin ....................................................                           1.97                  0.41                  8.97             27.07                 32.30            70.72
                                                  Knox .........................................................                          0.20                  0.01                  0.63              3.34                  0.71             4.89
                                                  Licking ......................................................                          0.40                  0.01                  1.47              6.39                  4.02            12.29
                                                  Madison ....................................................                            0.06                  0.01                  0.59              2.38                  1.45             4.49

                                                         Area Totals .......................................                              3.43                  0.46                 14.92             47.84                 44.05           110.70


                                                                                        TABLE 9—COLUMBUS AREA NOX EMISSIONS FOR MAINTENANCE YEAR 2030 (TPSD)
                                                                               County                                            Point                    AIR                Nonroad            Area                   Onroad             Total

                                                  Delaware ..................................................                             0.07                  0.01                  0.97               1.79                 7.15             9.99
                                                  Fairfield ....................................................                          5.64                  0.00                  0.60               0.76                 4.08            11.08
                                                  Franklin ....................................................                           2.27                  2.36                  3.96               7.50                50.99            67.08
                                                  Knox .........................................................                          0.09                  0.00                  0.33               0.53                 1.33             2.28
                                                  Licking ......................................................                          1.33                  0.00                  0.62               1.04                 7.41            10.40
                                                  Madison ....................................................                            0.01                  0.00                  0.41               0.47                 3.07             3.96

                                                         Area Totals .......................................                              9.41                  2.37                  6.89             12.09                 74.03           104.79


                                                                                      TABLE 10—COLUMBUS AREA VOC EMISSIONS FOR MAINTENANCE YEAR 2030 (TPSD)
                                                                               County                                            Point                    AIR                Nonroad            Area                   Onroad             Total

                                                  Delaware ..................................................                             0.32                  0.01                  2.09              4.07                  3.26             9.75
                                                  Fairfield ....................................................                          0.55                  0.01                  0.94              4.29                  1.84             7.63
                                                  Franklin ....................................................                           1.94                  0.51                  9.53             26.39                 27.90            66.27
                                                  Knox .........................................................                          0.20                  0.01                  0.50              3.23                  0.64             4.58
                                                  Licking ......................................................                          0.39                  0.01                  1.29              6.05                  3.56            11.30
                                                  Madison ....................................................                            0.06                  0.01                  0.54              2.24                  1.33             4.18

                                                         Area Totals .......................................                              3.46                  0.56                 14.89             46.27                 38.53           103.71


                                                             TABLE 11—CHANGE IN NOX AND VOC EMISSIONS IN THE COLUMBUS AREA BETWEEN 2014 AND 2030 (TPSD)
                                                                                                                                                         NOX                                                           VOC

                                                                                                                                                                                Net change                                                Net change
                                                                                                                               2014              2020              2030           (2014–      2014              2020            2030        (2014–
                                                                                                                                                                                   2030)                                                     2030)

                                                  Point ..................................................................         6.48             8.31              9.41           2.93         4.02             3.43            3.46       ¥0.56
                                                  AIR ....................................................................         1.60             1.86              2.37           0.77         0.42             0.46            0.56        0.14
                                                  Nonroad .............................................................           22.68            14.25              6.89         ¥15.79        17.60            14.92           14.89       ¥2.71
                                                  Area ...................................................................        14.12            13.41             12.09          ¥2.03        49.15            47.84           46.27       ¥2.88
                                                  Onroad ..............................................................          138.65            86.56             74.03         ¥64.62        68.06            44.05           38.53      ¥29.53

                                                        Total ...........................................................        183.53           124.39            104.79         ¥78.74       139.25           110.70          103.71      ¥35.54



                                                    In summary, the maintenance                                                   3. Continued Air Quality Monitoring                         4. Verification of Continued Attainment
                                                  demonstration for the Columbus area
                                                                                                                                    Ohio EPA has committed to continue                           The State of Ohio, has the legal
                                                  shows maintenance of the 2008 ozone
                                                                                                                                  to operate the ozone monitors listed in                     authority to enforce and implement the
                                                  standard by providing emissions
                                                                                                                                  Table 1 above. Ohio EPA has committed                       requirements of the maintenance plan
                                                  information to support the                                                                                                                  for the Columbus area. This includes the
                                                  demonstration that future emissions of                                          to consult with EPA prior to making
                                                                                                                                  changes to the existing monitoring                          authority to adopt, implement, and
                                                  NOX and VOC will remain at or below                                                                                                         enforce any subsequent emission
                                                  2014 emission levels when taking into                                           network should changes become
                                                                                                                                                                                              control measures determined to be
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                                                  account both future source growth and                                           necessary in the future. Ohio remains
                                                                                                                                  obligated to meet monitoring                                necessary to correct future ozone
                                                  implementation of future controls. Table                                                                                                    attainment problems.
                                                  11 shows NOX and VOC emissions in                                               requirements and continue to quality
                                                                                                                                  assure monitoring data in accordance                           Verification of continued attainment
                                                  the Columbus area are projected to                                                                                                          is accomplished through operation of
                                                  decrease by 78.74 TPSD and 35.54                                                with 40 CFR part 58, and to enter all
                                                                                                                                  data into the Air Quality System (AQS)                      the ambient ozone monitoring network
                                                  TPSD, respectively, between 2014 and                                                                                                        and the periodic update of the area’s
                                                  2030.                                                                           in accordance with Federal guidelines.
                                                                                                                                                                                              emissions inventory. Ohio EPA will
                                                                                                                                                                                              continue to operate the current ozone


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                                                                    Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules                                          66589

                                                  monitors located in the Columbus area.                  within the maintenance area. A warning                widespread use that affected local
                                                  There are no plans to discontinue                       level response will consist of Ohio EPA               governments deem appropriate.
                                                  operation, relocate, or otherwise change                conducting a study to determine                         4. Alternative fuel and diesel retrofit
                                                  the existing ozone monitoring network                   whether the ozone value indicates a                   programs for fleet vehicle operations.
                                                  other than through revisions in the                     trend toward higher ozone values or                     5. Require VOC or NOX emission
                                                  network approved by the EPA.                            whether emissions appear to be                        offsets for new and modified major
                                                     In addition, to track future levels of               increasing. The studies will evaluate                 sources.
                                                  emissions, Ohio EPA will continue to                    whether the trend, if any, is likely to                 6. Increase the ratio of emission
                                                  develop and submit to EPA updated                       continue and, if so, the control measures             offsets required for new sources.
                                                  emission inventories for all source                     necessary to reverse the trend. The                     7. Require VOC or NOX controls on
                                                  categories at least once every three                    studies will consider ease and timing of              new minor sources (less than 100 tons).
                                                  years, consistent with the requirements                 implementation as well as economic                      8. Adopt NOX RACT for existing
                                                  of 40 CFR part 51, subpart A, and in 40                 and social impacts. Implementation of                 combustion sources.
                                                  CFR 51.122. The Consolidated                            necessary controls in response to a                     9. High volume, low pressure coating
                                                  Emissions Reporting Rule (CERR) was                     warning level response trigger will take              application requirements for autobody
                                                  promulgated by EPA on June 10, 2002                     place within 12 months from the                       facilities.
                                                  (67 FR 39602). The CERR was replaced                                                                            10. Requirements for cold cleaner
                                                                                                          conclusion of the most recent ozone
                                                  by the Annual Emissions Reporting                                                                             degreaser operations (low vapor
                                                                                                          season.
                                                  Requirements (AERR) on December 17,                        In Ohio’s plan, an action level                    pressure solvents).
                                                                                                                                                                  EPA has concluded that the
                                                  2008 (73 FR 76539). The most recent                     response is triggered when a two-year
                                                                                                                                                                maintenance plan adequately addresses
                                                  triennial inventory for Ohio was                        average fourth high value of 0.076 ppm
                                                                                                                                                                the five basic components of a
                                                  compiled for 2014. Point source                         or greater is monitored within the
                                                                                                                                                                maintenance plan: Attainment
                                                  facilities covered by Ohio’s emission                   maintenance area. A violation of the
                                                                                                                                                                inventory, maintenance demonstration,
                                                  statement rule, Ohio Administrative                     standard within the maintenance area                  monitoring network, verification of
                                                  Code Chapter 3745–24, will continue to                  also triggers an action level response.               continued attainment, and a
                                                  submit VOC and NOX emissions on an                      When an action level response is                      contingency plan. In addition, as
                                                  annual basis.                                           triggered, Ohio EPA, in conjunction                   required by section 175A(b) of the CAA,
                                                  5. What is the contingency plan for the                 with the metropolitan planning                        Ohio EPA has committed to submit to
                                                  Columbus area?                                          organization or regional council of                   EPA an updated ozone maintenance
                                                                                                          governments, will determine what                      plan eight years after redesignation of
                                                     Section 175A of the CAA requires that                additional control measures are needed
                                                  the state must adopt a maintenance                                                                            the Columbus area to cover an
                                                                                                          to assure future attainment of the ozone              additional ten years beyond the initial
                                                  plan, as a SIP revision, that includes                  standard. Control measures selected will
                                                  such contingency measures as EPA                                                                              10 year maintenance period. Thus, EPA
                                                                                                          be adopted and implemented within 18                  proposes to find that the maintenance
                                                  deems necessary to assure that the state                months from the close of the ozone
                                                  will promptly correct a violation of the                                                                      plan SIP revision submitted by Ohio
                                                                                                          season that prompted the action level.                EPA for the Columbus area meets the
                                                  NAAQS that occurs after redesignation                   Ohio EPA may also consider if
                                                  of the area to attainment of the NAAQS.                                                                       requirements of section 175A of the
                                                                                                          significant new regulations not                       CAA.
                                                  The maintenance plan must identify:                     currently included as part of the
                                                  The contingency measures to be                          maintenance provisions will be                        V. Has the state adopted approvable
                                                  considered and, if needed for                           implemented in a timely manner and                    motor vehicle emission budgets?
                                                  maintenance, adopted and                                would thus constitute an adequate
                                                  implemented; a schedule and procedure                                                                         A. Motor Vehicle Emission Budgets
                                                                                                          contingency measure response.
                                                  for adoption and implementation; and,                      Ohio EPA included the following list                  Under section 176(c) of the CAA, new
                                                  a time limit for action by the state. The               of potential contingency measures in its              transportation plans, programs, or
                                                  state should also identify specific                     maintenance plan:                                     projects that receive Federal funding or
                                                  indicators to be used to determine when                    1. Adopt VOC RACT on existing                      support, such as the construction of new
                                                  the contingency measures need to be                     sources covered by EPA Control                        highways, must ‘‘conform’’ to (i.e., be
                                                  considered, adopted, and implemented.                   Technique Guidelines issued after the                 consistent with) the SIP. Conformity to
                                                  The maintenance plan must include a                     1990 CAA.                                             the SIP means that transportation
                                                  commitment that the state will                             2. Apply VOC RACT to smaller                       activities will not cause new air quality
                                                  implement all measures with respect to                  existing sources.                                     violations, worsen existing air quality
                                                  the control of the pollutant that were                     3. One or more transportation control              problems, or delay timely attainment of
                                                  contained in the SIP before                             measures sufficient to achieve at least               the NAAQS or interim air quality
                                                  redesignation of the area to attainment                 half a percent reduction in actual area               milestones. Regulations at 40 CFR part
                                                  in accordance with section 175A(d) of                   wide VOC emissions. Transportation                    93 set forth EPA policy, criteria, and
                                                  the CAA.                                                measures will be selected from the                    procedures for demonstrating and
                                                     As required by section 175A of the                   following, based upon the factors listed              assuring conformity of transportation
                                                  CAA, Ohio has adopted a contingency                     above after consultation with affected                activities to a SIP. Transportation
                                                  plan for the Columbus area to address                   local governments:                                    conformity is a requirement for
                                                  possible future ozone air quality                          a. Trip reduction programs, including,             nonattainment and maintenance areas.
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                                                  problems. The contingency plan                          but not limited to, employer-based                    Maintenance areas are areas that were
                                                  adopted by Ohio has two levels of                       transportation management plans, area                 previously nonattainment for a
                                                  response, a warning level response and                  wide rideshare programs, work schedule                particular NAAQS, but that have been
                                                  an action level response.                               changes, and telecommuting;                           redesignated to attainment with an
                                                     In Ohio’s plan, a warning level                         b. traffic flow and transit                        approved maintenance plan for the
                                                  response will be triggered when an                      improvements; and                                     NAAQS.
                                                  annual fourth high monitored value of                      c. other new or innovative                            Under the CAA, states are required to
                                                  0.079 ppm or higher is monitored                        transportation measures not yet in                    submit, at various times, control strategy


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                                                  66590                  Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules

                                                  SIPs for nonattainment areas and                            B. What is the status of EPA’s adequacy               Additional information on the adequacy
                                                  maintenance plans for areas seeking                         determination for the proposed VOC                    process for transportation conformity
                                                  redesignations to attainment of the                         and NOX MVEBs for the Columbus area?                  purposes is available in the proposed
                                                  ozone standard and maintenance areas.                          Whan reviewing submitted control                   rule titled, ‘‘Transportation Conformity
                                                  See the SIP requirements for the 2008                       strategy SIPs or maintenance plans                    Rule Amendments: Response to Court
                                                  ozone standard in EPA’s March 6, 2015                       containing MVEBs, EPA must                            Decision and Additional Rule Changes,’’
                                                  implementation rule (80 FR 12264).                          affirmatively find that the MVEBs                     68 FR 38974, 38984 (June 30, 2003).
                                                  These control strategy SIPs (including                      contained therein are adequate for use                  As discussed earlier, Ohio’s
                                                  reasonable further progress plans and                       in determining transportation                         maintenance plan includes NOX and
                                                  attainment plans) and maintenance                           conformity. Once EPA affirmatively                    VOC MVEBs for the Columbus area for
                                                  plans must include MVEBs for criteria                       finds that the submitted MVEBs are                    2030 and 2020, the last year of the
                                                  pollutants, including ozone, and their                      adequate for transportation purposes,                 maintenance period and an interim
                                                                                                              the MVEBs must be used by state and                   year. EPA reviewed the VOC and NOX
                                                  precursor pollutants (VOC and NOX for
                                                                                                              Federal agencies in determining                       MVEBs through the adequacy process.
                                                  ozone) to address pollution from onroad
                                                                                                              whether proposed transportation                       Ohio’s April 21, 2016, maintenance plan
                                                  transportation sources. The MVEBs are
                                                                                                              projects conform to the SIP as required               SIP submission, including the VOC and
                                                  the portion of the total allowable                                                                                NOX MVEBs for the Columbus area was
                                                                                                              by section 176(c) of the CAA.
                                                  emissions that are allocated to highway                        EPA’s substantive criteria for                     open for public comment on EPA’s
                                                  and transit vehicle use that, together                      determining adequacy of a MVEB are set                adequacy Web site on July 22, 2016,
                                                  with emissions from other sources in                        out in 40 CFR 93.118(e)(4). The process               found at: http://www.epa.gov/otaq/
                                                  the area, will provide for attainment or                    for determining adequacy consists of                  stateresources/transconf/currsips.htm.
                                                  maintenance. See 40 CFR 93.101.                             three basic steps: Public notification of             The EPA public comment period on
                                                     Under 40 CFR part 93, a MVEB for an                      a SIP submission; provision for a public              adequacy of the 2020 and 2030 MVEBs
                                                  area seeking a redesignation to                             comment period; and EPA’s adequacy                    for the Columbus area closed on August
                                                  attainment must be established, at                          determination. This process for                       22, 2016. No comments on the submittal
                                                  minimum, for the last year of the                           determining the adequacy of submitted                 were received during the adequacy
                                                  maintenance plan. A state may adopt                         MVEBs for transportation conformity                   comment period. The submitted
                                                  MVEBs for other years as well. The                          purposes was initially outlined in EPA’s              maintenance plan, which included the
                                                  MVEB serves as a ceiling on emissions                       May 14, 1999 guidance, ‘‘Conformity                   MVEBs, was endorsed by the Governor
                                                  from an area’s planned transportation                       Guidance on Implementation of March                   (or his or her designee) and was subject
                                                  system. The MVEB concept is further                         2, 1999, Conformity Court Decision.’’                 to a state public hearing. The MVEBS
                                                  explained in the preamble to the                            EPA adopted regulations to codify the                 were developed as part of an
                                                                                                              adequacy process in the Transportation                interagency consultation process which
                                                  November 24, 1993, Transportation
                                                                                                              Conformity Rule Amendments for the                    includes Federal, state, and local
                                                  Conformity Rule (58 FR 62188). The
                                                                                                              ‘‘New 8-Hour Ozone and PM2.5 National                 agencies. The MVEBS were clearly
                                                  preamble also describes how to                              Ambient Air Quality Standards and                     identified and precisely quantified.
                                                  establish the MVEB in the SIP and how                       Miscellaneous Revisions for Existing                  These MVEBs, when considered
                                                  to revise the MVEB, if needed,                              Areas; Transportation Conformity Rule                 together with all other emissions
                                                  subsequent to initially establishing a                      Amendments—Response to Court                          sources, are consistent with
                                                  MVEB in the SIP.                                            Decision and Additional Rule Change,’’                maintenance of the 2008 8-hour ozone
                                                                                                              on July 1, 2004 (69 FR 40004).                        standard.

                                                                                                    TABLE 12—MVEBS FOR THE COLUMBUS AREA, TPSD
                                                                                       Attainment            2020                                                     2030
                                                                                                                             2020 Mobile                                               2030 Mobile
                                                                                       year 2014           Estimated                                                Estimated
                                                                                                                            safety margin       2020 MVEBs                            safety margin   2030 MVEBs
                                                                                         onroad             onroad                                                   onroad
                                                                                                                              allocation                                                allocation
                                                                                       emissions           emissions                                                emissions

                                                  VOC .............................           68.06                 44.05              6.61               50.66              38.53             5.78         44.31
                                                  NOX ..............................         138.65                 86.56             12.98               90.54              74.03            11.10         85.13



                                                     As shown in Table 12, the 2020 and                       emissions will remain under attainment                projected level of emissions (from all
                                                  2030 MVEBs exceed the estimated 2020                        year emission levels. EPA, has found                  sources) in the maintenance plan. As
                                                  and 2030 onroad sector emissions. In an                     adequate and is proposing to approve                  noted in Table 11, the emissions in the
                                                  effort to accommodate future variations                     the MVEBs for use to determine                        Columbus area are projected to have
                                                  in travel demand models and vehicle                         transportation conformity in the                      safety margins of 78.74 TPSD for NOX
                                                  miles traveled forecast, Ohio EPA                           Columbus area, because EPA has                        and 35.54 TPSD for VOC in 2030 (the
                                                  allocated a portion of the safety margin                    determined that the area can maintain                 difference between the attainment year,
                                                  (described further below) to the mobile                     attainment of the 2008 ozone NAAQS                    2014, emissions and the projected 2030
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                                                  sector. Ohio has demonstrated that the                      for the relevant maintenance period                   emissions for all sources in the
                                                  Columbus area can maintain the 2008                         with mobile source emissions at the                   Columbus area). Similarly, there is a
                                                  ozone NAAQS with mobile source                              levels of the MVEBs.                                  safety margin of 59.14 TPSD for NOX
                                                  emissions in the area of 50.66 TPSD and                     C. What is a safety margin?                           and 28.55 TPSD for VOC in 2020. Even
                                                  44.31 TPSD of VOC and 90.54 TPSD and                                                                              if emissions reached the full level of the
                                                  85.13 TPSD of NOX in 2020 and 2030,                           A ‘‘safety margin’’ is the difference               safety margin, the counties would still
                                                  respectively, since despite partial                         between the attainment level of                       demonstrate maintenance since
                                                  allocation of the safety margin,                            emissions (from all sources) and the


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                                                                    Federal Register / Vol. 81, No. 188 / Wednesday, September 28, 2016 / Proposed Rules                                                66591

                                                  emission levels would equal those in                    results in the applicability of                       November 9, 2000), because
                                                  the attainment year.                                    requirements contained in the CAA for                 redesignation is an action that affects
                                                     As shown in Table 12 above, Ohio is                  areas that have been redesignated to                  the status of a geographical area and
                                                  allocating a portion of that safety margin              attainment. Moreover, the Administrator               does not impose any new regulatory
                                                  to the mobile source sector. Specifically,              is required to approve a SIP submission               requirements on tribes, impact any
                                                  in 2020, Ohio is allocating 6.61 TPSD                   that complies with the provisions of the              existing sources of air pollution on
                                                  and 12.98 TPSD of the VOC and NOX                       CAA and applicable Federal regulations.               tribal lands, nor impair the maintenance
                                                  safety margins, respectively. In 2030,                  42 U.S.C. 7410(k); 40 CFR 52.02(a).                   of ozone national ambient air quality
                                                  Ohio is allocating 5.78 TPSD and 11.10                  Thus, in reviewing SIP submissions,                   standards in tribal lands.
                                                  TPSD of the VOC and NOX safety                          EPA’s role is to approve state choices,
                                                  margins, respectively. Ohio EPA is not                                                                        List of Subjects in 40 CFR Part 52
                                                                                                          provided that they meet the criteria of
                                                  requesting allocation to the MVEBs of                   the CAA. Accordingly, this action                       Environmental protection, Air
                                                  the entire available safety margins                     merely approves state law as meeting                  pollution control, Incorporation by
                                                  reflected in the demonstration of                       Federal requirements and does not                     reference, Intergovernmental relations,
                                                  maintenance. In fact, the amount                        impose additional requirements beyond                 Oxides of nitrogen, Ozone, Volatile
                                                  allocated to the MVEBs represents only                  those imposed by state law. For that                  organic compounds.
                                                  a small portion of the 2020 and 2030                    reason, this action:                                    Dated: September 19, 2016.
                                                  safety margins. Therefore, even though                     • Is not a significant regulatory action           Robert A. Kaplan,
                                                  the State is requesting MVEBs that                      subject to review by the Office of
                                                  exceed the projected onroad mobile                                                                            Acting Regional Administrator, Region 5.
                                                                                                          Management and Budget under
                                                  source emissions for 2020 and 2030                                                                            [FR Doc. 2016–23293 Filed 9–27–16; 8:45 am]
                                                                                                          Executive Orders 12866 (58 FR 51735,
                                                  contained in the demonstration of                       October 4, 1993) and 13563 (76 FR 3821,               BILLING CODE 6560–50–P
                                                  maintenance, the increase in onroad                     January 21, 2011);
                                                  mobile source emissions that can be                        • Does not impose an information
                                                  considered for transportation                           collection burden under the provisions                ENVIRONMENTAL PROTECTION
                                                  conformity purposes is well within the                  of the Paperwork Reduction Act (44                    AGENCY
                                                  safety margins of the ozone maintenance                 U.S.C. 3501 et seq.);                                 40 CFR Part 52
                                                  demonstration. Further, once allocated                     • Is certified as not having a
                                                  to mobile sources, these safety margins                 significant economic impact on a                      [EPA–R04–OAR–2016–0421; FRL–9953–16–
                                                  will not be available for use by other                  substantial number of small entities                  Region 4]
                                                  sources.                                                under the Regulatory Flexibility Act (5
                                                                                                          U.S.C. 601 et seq.);                                  Air Plan Approval; Mississippi;
                                                  VI. Proposed Actions                                                                                          Interstate Transport (Prongs 1 and 2)
                                                                                                             • Does not contain any unfunded
                                                     EPA is proposing to determine that                   mandate or significantly or uniquely                  for the 2010 1-hour NO2 Standard
                                                  the Columbus nonattainment is                           affect small governments, as described                AGENCY:  Environmental Protection
                                                  attaining the 2008 ozone standard,                      in the Unfunded Mandates Reform Act                   Agency (EPA).
                                                  based on quality-assured and certified                  of 1995 (Pub. L. 104–4);                              ACTION: Proposed rule.
                                                  monitoring data for 2013–2015 and that                     • Does not have Federalism
                                                  the Ohio portion of this area has met the               implications as specified in Executive                SUMMARY:   The Environmental Protection
                                                  requirements for redesignation under                    Order 13132 (64 FR 43255, August 10,                  Agency (EPA) is proposing to approve a
                                                  section 107(d)(3)(E) of the CAA. EPA is                 1999);                                                revision to the Mississippi State
                                                  thus proposing to approve Ohio EPA’s                       • Is not an economically significant               Implementation Plan (SIP), submitted
                                                  request to change the legal designation                 regulatory action based on health or                  by the Mississippi Department of
                                                  of the Columbus area from                               safety risks subject to Executive Order               Environmental Quality (MS DEQ), on
                                                  nonattainment to attainment for the                     13045 (62 FR 19885, April 23, 1997);                  May 23, 2016, addressing the Clean Air
                                                  2008 ozone standard. EPA is also                           • Is not a significant regulatory action           Act (CAA or Act) interstate transport
                                                  proposing to approve, as a revision to                  subject to Executive Order 13211 (66 FR               (prongs 1 and 2) infrastructure SIP
                                                  the Ohio SIP, the state’s maintenance                   28355, May 22, 2001);                                 requirements for the 2010 1-hour
                                                  plan for the area. The maintenance plan                    • Is not subject to requirements of
                                                                                                                                                                Nitrogen Dioxide (NO2) National
                                                  is designed to keep the Columbus area                   Section 12(d) of the National
                                                                                                                                                                Ambient Air Quality Standard
                                                  in attainment of the 2008 ozone NAAQS                   Technology Transfer and Advancement
                                                                                                                                                                (NAAQS). The CAA requires that each
                                                  through 2030. Finally, EPA finds                        Act of 1995 (15 U.S.C. 272 note) because
                                                                                                                                                                state adopt and submit a SIP for the
                                                  adequate and is proposing to approve                    application of those requirements would
                                                                                                                                                                implementation, maintenance, and
                                                  the newly-established 2020 and 2030                     be inconsistent with the CAA; and
                                                                                                                                                                enforcement of each NAAQS
                                                  MVEBs for the Columbus area.                               • Does not provide EPA with the
                                                                                                                                                                promulgated by EPA, commonly
                                                                                                          discretionary authority to address, as
                                                  VII. Statutory and Executive Order                                                                            referred to as an ‘‘infrastructure SIP.’’
                                                                                                          appropriate, disproportionate human
                                                  Reviews                                                                                                       Specifically, EPA is proposing to
                                                                                                          health or environmental effects, using
                                                     Under the CAA, redesignation of an                                                                         approve Mississippi’s May 23, 2016, SIP
                                                                                                          practicable and legally permissible
                                                  area to attainment and the                                                                                    submission addressing prongs 1 and 2,
                                                                                                          methods, under Executive Order 12898
                                                  accompanying approval of a                                                                                    to ensure that air emissions in the State
                                                                                                          (59 FR 7629, February 16, 1994).
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                                                  maintenance plan under section                             In addition, the SIP is not approved               do not significantly contribute to
                                                  107(d)(3)(E) are actions that affect the                to apply on any Indian reservation land               nonattainment or interfere with
                                                  status of a geographical area and do not                or in any other area where EPA or an                  maintenance of the 2010 1-hour NO2
                                                  impose any additional regulatory                        Indian tribe has demonstrated that a                  NAAQS in any other state.
                                                  requirements on sources beyond those                    tribe has jurisdiction. In those areas of             DATES: Comments must be received on
                                                  imposed by state law. A redesignation to                Indian country, this rule does not have               or before October 28, 2016.
                                                  attainment does not in and of itself                    tribal implications as specified by                   ADDRESSES: Submit your comments,
                                                  create any new requirements, but rather                 Executive Order 13175 (65 FR 67249,                   identified by Docket ID No EPA–R04–


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Document Created: 2016-09-28 01:07:22
Document Modified: 2016-09-28 01:07:22
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionProposed rule.
DatesComments must be received on or before October 28, 2016.
ContactKathleen D'Agostino, Environmental Scientist, Attainment Planning and Maintenance Section, Air Programs Branch (AR-18J), Environmental Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, Illinois 60604, (312) 886-1767, [email protected]
FR Citation81 FR 66578 
CFR Citation40 CFR 52
40 CFR 81
CFR AssociatedEnvironmental Protection; Air Pollution Control; Incorporation by Reference; Intergovernmental Relations; Oxides of Nitrogen; Ozone and Volatile Organic Compounds

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