[Federal Register: November 3, 2009 (Volume 74, Number 211)]
[Rules and Regulations]
[Page 56717-56719]
[DOCID:fr03no09-8]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-1362; Directorate Identifier 2008-NM-150-AD;
Amendment 39-16067; AD 2009-22-14]
RIN 2120-AA64

Airworthiness Directives; Boeing Model 747-200C and 747-200F
Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Boeing Model 747-200C and 747-200F series airplanes. This AD requires
installing larger moisture shrouds and additional drain lines in the
electrical/electronic equipment center. This AD results from reports of
water contamination in the electrical/electronic units in the main
equipment center. We are issuing this AD to prevent water contamination
in the electrical/electronic units in the main equipment center, which
could result in an electrical short and potential loss of several
functions essential for safe flight.

DATES: This AD is effective December 8, 2009.
    The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of December 8,
2009.

ADDRESSES: For service information identified in this AD, contact
Boeing Commercial Airplanes, Attention: Data & Services Management,
P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 206-
544-5000, extension 1, fax<PHONE_NUMBER>; e-mail<EMAIL_ADDRESS>
Internet https://www.myboeingfleet.com.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://
www.regulations.gov; or in person at the Docket Management Facility
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this AD, the regulatory evaluation,
any comments received, and other information. The address for the
Docket Office (telephone<PHONE_NUMBER>) is the Document Management
Facility, U.S. Department of Transportation, Docket Operations, M-30,
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE.,
Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Marcia Smith, Aerospace Engineer,
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle
Aircraft Certification Office, 1601 Lind Avenue, SW., Renton,
Washington 98057-3356; telephone<PHONE_NUMBER>; fax<PHONE_NUMBER>.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an airworthiness directive (AD) that would apply to
certain Boeing Model 747-200C and 747-200F series airplanes. That NPRM
was published in the Federal Register on January 12, 2009 (74 FR 1158).
That NPRM proposed to require installing larger moisture shrouds and
additional drain lines in the electrical/electronic equipment center.

Actions Since NPRM Was Issued

    Paragraph (g) of the NPRM cited Boeing Alert Service Bulletin 747-
25A3430, dated February 15, 2007, as the appropriate source of service
information for the prior or concurrent action for the proposed
installation; Boeing has revised this service bulletin. Boeing Service
Bulletin 747-25A3430, Revision 1, dated October 9, 2008, moves certain
airplanes to new groups 5 and 6, and adds respective weight and balance
tables, materials, parts, and work instructions and figures, but does
not add any new procedures. We have revised paragraph (g) of the final
rule to refer to Boeing Service Bulletin 747-25A3430, Revision 1, dated
October 9, 2008, and added new paragraph (h) to this AD to give credit
for accomplishing the original service bulletin before the effective
date of this AD. We have re-identified subsequent paragraphs
accordingly. We have also revised Note 1 of this AD to refer to
Revision 1.

Comments

    We gave the public the opportunity to participate in developing
this AD. We considered the comments received from the two commenters.

Request for Terminology Clarification

    Boeing requests that we change the phrase ``reworking the base line
(BL) 11 intercostals'' found in the Relevant Service Information
section to ``reworking the butt line (BL) 11 intercostals.'' Boeing
recommends using standard aerospace terminology for geometric
dimensioning.
    We partially agree. The language Boeing proposes is the correct
terminology, but the Relevant Service Information section in the NPRM
is not repeated in the final rule. We have not changed the AD in this
regard.

Request To Change Affected Airplanes

    Boeing requests that we revise the Costs of Compliance section of
the NPRM to change the number of affected U.S. airplanes from 25 to 31.
Current analysis of the Boeing Airplane Configuration Tracking System
airplane database indicates 31 airplanes are affected.
    We agree, for the reason explained by the commenter. We have
revised this final rule accordingly.

Request for No Requirement of Re-Installation of Curtains

    Northwest Airlines (Northwest) requests that we consider not
requiring re-installation of curtains after accomplishing shroud
installation per the instructions of Boeing Alert Service Bulletin 747-
25A3431, dated March 6, 2008. Northwest explains that since 2001, it
has operated two 747 freighters with the extended overhead moisture
shrouds (similar to those installed per Boeing Alert Service Bulletin
747-25A3431, dated March 6, 2008) that had been installed during a
passenger-to-freighter conversion but did not have the curtains
installed. Northwest explains that service experience on the

two airplanes showed that there were no moisture ingress problems.
    We disagree with the request. While Northwest may not have
experienced moisture ingress problems on its two airplanes that have
been operating without curtains, we cannot mandate fleet-wide action on
data from two airplanes. The AD is intended to prevent water
contamination in the electrical/electronic main equipment center of the
fleet. However, under the provisions of paragraph (i) of this AD,
Northwest may request an alternative method of compliance if it can
provide data that substantiate the request. We have not changed this AD
in this regard.

Conclusion

    We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
the AD with the changes described previously. We also determined that
the changes will not increase the economic burden on any operator or
increase the scope of the AD.

Costs of Compliance

    We estimate that this proposed AD would affect 31 airplanes of U.S.
registry. The following table provides the estimated costs for U.S.
operators to comply with this proposed AD.

                                                                     Estimated Costs
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                                                                                Number of U.S.-
              Action                    Work hours        Average labor          Parts           Cost per product      registered         Fleet cost
                                                          rate per hour                                                 airplanes
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Installations....................  Up to 75............             $80  Up to $28,405.......  Up to $34,405.......              31  Up to $1,066,555.
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Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. ``Subtitle VII: Aviation
Programs,'' describes in more detail the scope of the Agency's
authority.
    We are issuing this rulemaking under the authority described in
``Subtitle VII, Part A, Subpart III, Section 44701: General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.

Regulatory Findings

    This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive
Order 12866,
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979), and
    (3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
    You can find our regulatory evaluation and the estimated costs of
compliance in the AD Docket.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new AD:

2009-22-14 Boeing: Amendment 39-16067. Docket No. FAA-2008-1362;
Directorate Identifier 2008-NM-150-AD.

Effective Date

    (a) This airworthiness directive (AD) is effective December 8,
2009.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Boeing Model 747-200C and 747-200F series
airplanes, certificated in any category, as identified in Boeing
Alert Service Bulletin 747-25A3431, dated March 6, 2008.

Unsafe Condition

    (d) This AD results from reports of water contamination in the
electrical/electronic units in the main equipment center. We are
issuing this AD to prevent water contamination in the electrical/
electronic units in the main equipment center, which could result in
an electrical short and potential loss of several functions
essential for safe flight.

Compliance

    (e) Comply with this AD within the compliance times specified,
unless already done.

Installation of Shrouds and Drain Lines

    (f) Within 72 months after the effective date of this AD,
install larger moisture shrouds and additional drain lines, by doing
all the applicable actions specified in the Accomplishment
Instructions of Boeing Alert Service Bulletin 747-25A3431, dated
March 6, 2008.

Installation of Moisture Curtains

    (g) Prior to or concurrently with accomplishing the actions
required by paragraph (f) of this AD: Install protective moisture
curtains in the main equipment center in accordance with Boeing
Service Bulletin 747-25A3430, Revision 1, dated October 9, 2008.

    Note 1: The installation required by paragraph (g) of this AD is
the same installation required by paragraph (f) of AD 2007-26-03,
amendment 39-15305, for Boeing Model 747-200C and -200F series
airplanes (AD 2007-26-03 specifies that the actions be done in
accordance with Boeing Alert Service Bulletin 747-25A3430, dated
February 15, 2007). Boeing Service Bulletin 747-25A3430, Revision 1,
dated October 9, 2008, which affects Boeing Model 747-200F
airplanes, variable numbers RR566 and RR551 through RR556 inclusive,
is an alternative method of compliance for the requirements of
paragraph (g) of AD 2007-26-03. Airplanes identified as Group 1,
Group 3, and Group 6 airplanes in Boeing Service Bulletin 747-
25A3430, Revision 1, dated October 9, 2008, must comply with
paragraph (g) of AD 2007-26-03.

Installations Accomplished According to Previous Issue of Service
Bulletin

    (h) Installations accomplished before the effective date of this
AD in accordance with Boeing Alert Service Bulletin 747-25A3430,
dated February 15, 2007, are considered

acceptable for compliance with the corresponding action, paragraph
(g) of this AD.

Alternative Methods of Compliance (AMOCs)

    (i)(1) The Manager, Seattle Aircraft Certification Office (ACO),
FAA, has the authority to approve AMOCs for this AD, if requested
using the procedures found in 14 CFR 39.19. Send information to
ATTN: Marcia Smith, Aerospace Engineer, Cabin Safety and
Environmental Systems Branch, ANM-150S, FAA, Seattle Aircraft
Certification Office, 1601 Lind Avenue, SW., Renton, Washington
98057-3356; telephone<PHONE_NUMBER>; fax<PHONE_NUMBER>. Or, e-mail
information to<EMAIL_ADDRESS>    (2) To request a different method of compliance or a different
compliance time for this AD, follow the procedures in 14 CFR 39.19.
Before using any approved AMOC on any airplane to which the AMOC
applies, notify your principal maintenance inspector (PMI) or
principal avionics inspector (PAI), as appropriate, or lacking a
principal inspector, your local Flight Standards District Office.
The AMOC approval letter must specifically reference this AD.

Material Incorporated by Reference

    (j) You must use Boeing Alert Service Bulletin 747-25A3431,
dated March 6, 2008; and Boeing Service Bulletin 747-25A3430,
Revision 1, dated October 9, 2008; as applicable; to do the actions
required by this AD, unless the AD specifies otherwise.
    (1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
    (2) For service information identified in this AD, contact
Boeing Commercial Airplanes, Attention: Data & Services Management,
P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone
206-544-5000, extension 1, fax<PHONE_NUMBER>; e-mail
<EMAIL_ADDRESS>Internet https://www.myboeingfleet.com.
    (3) You may review copies of the service information at the FAA,
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton,
Washington. For information on the availability of this material at
the FAA, call<PHONE_NUMBER> or<PHONE_NUMBER>.
    (4) You may also review copies of the service information that
is incorporated by reference at the National Archives and Records
Administration (NARA). For information on the availability of this
material at NARA, call<PHONE_NUMBER>, or go to: http://
www.archives.gov/federal_register/code_of_federal_regulations/
ibr_locations.html.

    Issued in Renton, Washington, on October 19, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E9-25918 Filed 11-2-09; 8:45 am]

BILLING CODE 4910-13-P


[Federal Register Volume 85, Number 215 (Thursday, November 5, 2020)]
[Proposed Rules]
[Pages 70554-70558]
[FR Doc No: 2020-24487]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R05-OAR-2020-0388; FRL-10016-08-Region 5]

Air Plan Approval; Ohio; Base Year Emission Inventories and
Emissions Statement Rule Certification for the 2015 Ozone Standard

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: The Environmental Protection Agency (EPA) is proposing to
approve, under the Clean Air Act (CAA), a revision to the State
Implementation Plan (SIP) submitted by the Ohio Environmental
Protection Agency on July 24, 2020. The CAA establishes emission
inventory requirements for all ozone nonattainment areas. The revision
will address the emission inventory requirements for the Cleveland,
Ohio (OH) nonattainment area and the Ohio portion of the Cincinnati,
Ohio-Kentucky (Cincinnati) ozone nonattainment area, as designated
under the 2015 ozone National Ambient Air Quality Standard (NAAQS or
standard). Also, EPA is proposing to approve Ohio's certification that
its stationary annual emissions statement regulation, which has been
previously approved by EPA under a prior ozone standard, satisfies the
CAA emissions statement rule requirement for the Cleveland and
Cincinnati nonattainment areas under the 2015 ozone NAAQS.

DATES: Comments must be received on or before December 7, 2020.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R05-
OAR-2020-0388 at http://www.regulations.gov or via email to
<EMAIL_ADDRESS>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 disclosure
of which 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: Charles Hatten, Environmental
Engineer, Control Strategies Section, Air Programs Branch (AR-18J),
Environmental Protection Agency, Region 5, 77 West Jackson Boulevard,
Chicago, Illinois 60604,<PHONE_NUMBER><EMAIL_ADDRESS>The
EPA Region 5 office is open from 8:30 a.m. to 4:30 p.m., Monday through
Friday, excluding Federal holidays and facility closures due to COVID-
19.

SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,''
``us,'' or ``our'' is used, we mean EPA.

I. The 2015 Ozone NAAQS Emissions Inventory and Emissions Statement
Rule Requirements

    On October 26, 2015, EPA promulgated a revised 8-hour ozone NAAQS
of 0.070 parts per million (ppm). See 80 FR 65292. The Cleveland and
Cincinnati areas were designated as marginal nonattainment areas for
the 2015 ozone NAAQS. See 83 FR 25776 (August 3, 2018). The Cleveland
nonattainment area includes Cuyahoga, Geauga, Lake, Lorain, Medina,
Portage, and Summit Counties. The Cincinnati nonattainment area
includes Butler, Clermont, Hamilton, and Warren Counties.

A. Emission Inventories

    CAA sections 172(c)(3) and 182(a)(1), 42 U.S.C. 7502(c)(3) and
7511a(a)(1), require states to develop and submit, as a SIP revision,
emission inventories for all areas designated as nonattainment for any
NAAQS. An emission inventory for ozone is an estimation of actual
emissions of air pollutants that contribute to the formation of ozone
in an area. Ozone is a gas that is formed by the reaction of volatile
organic compounds (VOC) and oxides of nitrogen (NOX) in the
atmosphere in the presence of sunlight (VOC and NOX are
referred to as ozone precursors). Therefore, an emission inventory for
ozone focuses on the emissions of VOC and NOX. VOC is
emitted by many types of sources, including power plants, industrial
sources, on-road and off-road mobile sources, smaller stationary
sources collectively referred to as area sources, and biogenic sources.
NOX is primarily emitted by combustion sources, both
stationary and mobile.
    Emission inventories provide emissions data for a variety of air
quality planning tasks, including establishing baseline emission levels
(anthropogenic [manmade] emissions associated with ozone standard
violations), calculating emission reduction targets needed to attain
the NAAQS and to achieve reasonable further progress (RFP) toward
attainment of the ozone standard (not required in the areas considered
here), determining emission inputs for ozone air quality modeling
analyses, and tracking emissions over time to determine progress toward
achieving air quality and emission reduction goals. For the 2015 ozone
NAAQS, states should submit ozone season day emission estimates for an
inventory calendar year to be consistent with the baseline year for RFP
plan as required by 40 CFR 51.1310(b). For the RFP baseline year for
the 2015 ozone NAAQS under 40 CFR 51.1310(b) states may use a calendar
year for the most recently available complete triennial (3-year cycle)
emissions inventory (40 CFR 51, subpart A) preceding the year of the
area's effective date of designation as a nonattainment area. (83 FR
63034-63035, December 6, 2018).\1\ States are required to submit
estimates of VOC and NOX emissions for four general classes
of anthropogenic sources: Stationary point sources; area sources; on-
road mobile sources; and off-road mobile sources.
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    \1\ The RFP requirements specified in CAA section 182(b)(1)
shall apply to all area's designated nonattainment for ozone
classified Moderate or higher.
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B. Emissions Statement Rules

    Section 182(a)(3)(B) of the CAA requires states with ozone
nonattainment areas to submit revisions to their SIP to require the
owner or operator of each stationary source of NOX or VOC to
provide the state with an annual statement documenting the actual
emissions of NOX and VOC from their source. This requirement
applies to each stationary source emitting greater than or equal to 25
tons per year of VOC or NOX in an ozone nonattainment area.
    Many states have adopted these emissions statement rules for a
prior ozone NAAQS that cover all the state's nonattainment areas and
relevant classes and categories of sources. For these states, EPA is
accepting certifications that their previously adopted emissions
statement rules remain in place and are adequate to meet the emissions
statement rule requirement under the 2015 ozone standard. (83 FR
63002).

II. Ohio's Emission Inventories

    On July 24, 2020, Ohio submitted a SIP revision addressing the
emissions inventory requirement of CAA section 182(a)(1). Ohio provided
documentation of a 2014 NOX and VOC base year emissions
inventory requirement for the Cleveland and Cincinnati ozone
nonattainment areas. Ohio selected 2014 because this was one of the
three years of ozone data indicating a violation of the ozone standard
that were used to designate the areas as nonattainment for the 2015
ozone NAAQS. 83 FR 25778, 25779. In addition, the 2014 base year
emissions inventory was the most recent comprehensive, accurate, and
quality assured triennial emissions inventory in the National Emissions
Inventory (NEI) database, available at the time the state began
preparing the emissions inventory submittal for the Cleveland and
Cincinnati areas.\2\ Tables 1 and 2 summarize the 2014 NOX
and VOC emissions for Cleveland and Cincinnati areas in tons of
emissions per ozone season day.\3\
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    \2\ The Cleveland and Cincinnati areas are currently classified
as marginal nonattainment areas for the 2015 NAAQS and are therefore
not subject to the reasonable further progress (RFP) requirement. If
one or both areas are reclassified as moderate, the area(s) would
become subject to the RFP provisions and Ohio would be required to
replace the 2014 base year emissions inventory with a 2017 base year
emissions inventory in accordance with the 2015 ozone NAAQS
Implementation Rule, 83 FR 62998, 63004.
    \3\ The ozone season is the portion of the year in which high
ozone concentrations may be expected in a given area.

                                  Table 1--2014 Ozone Season Day NOX Emissions
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                                                         2014 Ozone season day NOX emissions (tons/day)
                                               -----------------------------------------------------------------
                  County/NAA                                Non-EGU                                    Total NOX
                                                 EGU \1\     point       Area     Non-road    Onroad
----------------------------------------------------------------------------------------------------------------
Butler........................................       0.39      10.83       2.28       4.28      12.40      30.18
Clermont......................................      48.30       0.01       1.14       2.29       6.64      58.38
Hamilton......................................      20.47       4.84       6.82       8.44      30.37      70.94
Warren........................................       0.00       0.92       1.16       3.25       7.72      13.05
Cincinnati NAA................................      69.16      16.60      11.40      18.26      57.13     172.55
Cuyahoga......................................       0.82       9.64      12.42      22.51      33.32      78.71
Geauga........................................       0.00       0.02       0.75       1.88       2.49       5.14
Lake..........................................       5.46       1.83       3.90       6.26       6.51      23.96
Lorain........................................      10.88       1.38       4.07       7.51       7.89      31.73
Medina........................................       0.00       0.22       1.46       3.23       5.40      10.31
Portage.......................................       0.00       0.33       2.40       2.96       6.07      11.76
Summit........................................       0.00       1.66       4.96       6.84      17.78      31.24
Cleveland NAA.................................      17.16      15.08      29.96      51.19      79.46     192.85
----------------------------------------------------------------------------------------------------------------
\1\ Electric Generating Units (EGU).

                                  Table 2--2014 Ozone Season Day VOC Emissions
----------------------------------------------------------------------------------------------------------------
                                                         2014 Ozone season day VOC emissions (tons/day)
                                               -----------------------------------------------------------------
                  County/NAA                                Non-EGU
                                                   EGU       point       Area     Non-road    Onroad   Total VOC
----------------------------------------------------------------------------------------------------------------
Butler........................................       0.02       2.97      13.36       3.41       7.22      26.98
Clermont......................................       0.27       0.40       6.50       2.39       4.01      13.57
Hamilton......................................       0.34       2.05      31.30       8.61      14.51      56.81
Warren........................................       0.00       0.51       9.02       2.74       3.93      16.20
Cincinnati NAA................................       0.63       5.93      60.18      17.15      29.67     113.56
Cuyahoga......................................       0.01       3.14      42.66      32.24      14.38      92.43
Geauga........................................       0.00       0.09       4.27       4.66       1.34      10.36
Lake..........................................       0.04       0.81       9.91      10.58       2.94      24.28
Lorain........................................       0.17       1.90       8.88      11.81       3.57      26.33
Medina........................................       0.00       0.55       6.83       4.84       2.36      14.58
Portage.......................................       0.00       1.14       7.29       6.68       2.33      17.44
Summit........................................       0.00       1.16      19.63       9.40       6.89      37.08
Cleveland NAA.................................       0.22       8.79      99.47      80.21      33.81     222.50
----------------------------------------------------------------------------------------------------------------

A. Base Year Emissions Inventory

    Ohio estimated NOX and VOC emissions for all source
categories by county for the Cleveland and Cincinnati ozone
nonattainment areas. Emissions for these counties were totaled by
source category for each ozone nonattainment area. To develop the
NOX and VOC emissions inventories, Ohio used the annual
emissions data contained in EPA's 2014 National Emissions Inventory
(2014 NEI.v2) database. To document the derivation of these emissions
data, Ohio included EPA's ``Technical Support Document (TSD)
Preparation of Emissions Inventories for the Version 7.1 Emissions
Modeling Platform'' (August 2018) in the July 24, 2020, submittal. All
annual NOX and VOC emissions data collected from the 2014 v2
NEI were temporally allocated to ozone season day by using temporal
files found in EPA's 2014v2 Air Emissions Modeling Platform (2014fd),
https://www.epa.gov/air-emissions-modeling/2014-version-71-platform.
Ozone season day emissions were derived by applying a separate
conversion factor to the annual emissions for each source category by
pollutant and nonattainment area.

B. How did the State develop the emission inventories?

    For point sources (EGUs and non-EGUs), Ohio calculates and stores
emissions data annually in the state's STARS database. Under the
authority of Ohio Administrative Code (OAC) 3745-15-03, Ohio requires
regulated stationary sources in the ozone nonattainment areas to submit
emission inventory statements annually. These reports contain detailed
source type-specific or annual source unit-specific and seasonal actual
emissions for all source units in a facility. The point source data for
2014 base year emissions inventory were submitted through EPA's bridge
tool for submission to the Emissions Inventory System (EIS) Gateway for
the 2014 NEI. Ohio provided a detailed list of EGU and non-EGU point
sources included the 2014 base year emissions inventory by county,
facility ID, unit ID, with their respective NOX and VOC
emissions within appendices A and B of their July 24, 2020, submittal.
    For area source emissions, Ohio relied on a variety of state
specific data to estimate emissions based on EPA's procedures and
guidance for the 2014 base year emissions inventory. Area sources are
spread over wide areas with no distinct discharge points or are
comprised of a large number of small point sources that are difficult
to describe separately and whose emissions are not well characterized
(e.g., heating furnaces in individual homes, architectural surface
coating, automobile refueling, dry cleaning, etc.).
    To develop an accurate and complete area source inventory, Ohio
used EPA's

default data to describe activity levels or emissions when no state
specific data was available. Ohio implemented quality control and
quality assurance (QA) measures throughout the development of this
inventory, with the help of EPA's Nonpoint Method Advisory committee.
The emission data Ohio collected were submitted through the EIS Gateway
using EPA's bridge tool for submission into NEI. The quality control
and QA of nonpoint data was primarily an ad-hoc process led by EPA.
This process included comparing 2014 estimates to previous NEI cycles,
gap-filling for missing pollutants, and evaluating outliers. In
addition, for some source categories that have already been reported in
the point source inventory, Ohio used EPA's ''Point to Nonpoint
Crosswalk'' tool, which describes the similarities between point Source
Classification Codes (SCCs) and nonpoint SCCs to help avoid double
counting emissions.
    Ohio has provided a detailed list of the area sources included in
the 2014 base year emissions inventory by SCC and county, with their
respective NOX and VOC emissions in appendix C, including a
discussion how the emissions were derived for each source category
within their July 24, 2020, submittal.
    The nonroad mobile source emissions in the 2014 NEI were developed
by the EPA using the 2014 NEI the Motor Vehicle Emissions Simulator
(MOVES-2014a). Ohio did not provide state specific data for the
development of nonroad emissions. In appendix D, Ohio provides a list
of the nonroad sources included in the 2014 base year emissions
inventory by SCC and county, with their respective NOX and
VOC emissions.
    On-road mobile source emissions in the 2014 NEI were developed by
the EPA using the MOVES-2014a. The state specific data was retrieved
from the Ohio Department of Transportation, local metropolitan planning
organizations (MPOs), and the Ohio Bureau of Motor Vehicles.
    Most of the QA for on-road mobile emissions was processed through
tools built into MOVES. Additionally, just like the point and nonpoint
inventories, QA was performed when the data was submitted to the EIS
Gateway. In appendix E, of the July 24, 2020, submittal, Ohio has
documented on-road emissions by SCC and county.
    The data provided by the Ohio Department of Transportation
accounted for Highway Performance Monitoring System Vehicle Type Year
and Road Type Distribution. Alternate Vehicle and Fuel Technology,
Average Speed Distribution, and Month, Day and Hour Vehicle Miles
Traveled Fractions were also provided by the Ohio Department of
Transportation along with MPOs. The Ohio Bureau of Motor Vehicles
provided Source Type Age Distribution and Source Type Year for all
counties and for source types 11 (motorcycles), 21 (passenger cars), 31
(passenger trucks) and 32 (light commercial trucks) only. For the
remaining source types, EPA defaults were used.
    Most of the QA for on-road mobile emissions was processed through
tools built into MOVES. Additionally, just like the point and nonpoint
inventories, QA was performed when the data was submitted to the EIS
Gateway. In appendix E, of the July 24, 2020, submittal, Ohio has
documented on-road emissions by SCC and county.

III. Ohio's Emissions Statement Rule

    Section 182(a)(3)(B) of the CAA requires states to include
regulations in the SIP to require sources (source facilities) to submit
annual statements characterizing sources of NOX and VOC
emission within the source facilities and to report actual
NOX and VOC emissions for these sources. Ohio confirmed in
the July 24, 2020, submittal that their existing emissions reporting
rule at OAC 3745-24, approved in Ohio's SIP remains in place and
adequate to meet the CAA section 182(a)(3)(B) emissions statement
requirement for the 2015 ozone standard. EPA approved this rule into
the Ohio SIP on September 27, 2007 (72 FR 54844). This rule
specifically requires all regulated source facilities in the ozone
nonattainment areas that emit greater than or equal to 25 tons/year of
NOX or VOC during the reporting year to submit annual
emissions statements. Ohio included a copy of rule OAC 3745-24 in the
July 24, 2020, submission. See appendices, F1-F4.
    On May 18, 2020, Ohio notified the public of the 30-day period the
opportunity for comment, with respect to the requested SIP revision on
Ohio's Department of Air Pollution Control website at: https://epa.ohio.gov/dapc/sip/2015. No comments were received, and no public
hearing was requested.

IV. EPA's Evaluation

A. Emissions Inventory

    EPA has reviewed Ohio's July 24, 2020 requested SIP revision for
consistency with sections 172(c)(3) CAA and 182(a)(1) of the CAA, and
EPA's emission inventory requirements. In particular, EPA has reviewed
the techniques used by Ohio to derive and quality assure the emission
estimates. Ohio documented the procedures used to estimate the
emissions for each of the major source types. The documentation of the
emission estimation procedures is very thorough and is adequate for us
to determine that Ohio followed acceptable procedures to estimate the
emissions.
    Ohio developed a QA plan and followed this plan during various
phases of the emissions estimation and documentation process to quality
assure the emissions for completeness and accuracy. These QA procedures
were summarized in the documentation describing how the emissions
totals were developed. EPA has determined that the QA procedures are
complete, adequate and acceptable. EPA proposes to find that Ohio has
developed approvable inventories of NOX and VOC emissions
for the Cleveland and Cincinnati ozone nonattainment areas.

B. Emissions Statement Rule

    EPA approved Ohio's emissions statement rule, OAC 3745-24, into the
Ohio SIP on September 27, 2007 (72 FR 54844), and it is currently being
implemented. The rule requires sources of NOX and VOC in the
Cleveland and Cincinnati ozone nonattainment areas to annually report
these emissions to the state if the sources emit NOX and VOC
equaling or exceeding 25 tons per year. EPA finds this acceptable and
proposes to find that Ohio's emissions statement rule OAC 3745-24 meets
the requirements of CAA section 182(a)(3)(B).

V. What action is EPA taking?

    We are proposing to approve Ohio's SIP revision submitted to
address the ozone-related emission inventory requirements for the
Cleveland and Cincinnati ozone nonattainment areas for the 2015 ozone
NAAQS. The emission inventories we are approving into the SIP are
specified in Tables 1 and 2, shown above. We are proposing to approve
the emission inventories because they contain comprehensive, accurate,
and current inventories of actual emissions for all relevant sources in
accordance with CAA sections 172(c)(3) and 182(a), and because Ohio
adopted the emission inventories after providing for reasonable public
notice and opportunity for a public hearing. Finally, we are also
confirming that Ohio has acceptable and enforceable stationary annual
emission statement regulations for the 2015 ozone standard.

VI. Statutory and Executive Order Reviews

    Under the CAA, 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);
     Is not an Executive Order 13771 (82 FR 9339, February 2,
2017) regulatory action because it is not a significant regulatory
action under Executive Order 12866;
     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, the rule does not have tribal implications and will not impose
substantial direct costs on tribal governments or preempt tribal law as
specified by Executive Order 13175 (65 FR 67249, November 9, 2000).

List of Subjects in 40 CFR Part 52

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

    Dated: October 30, 2020.
Kurt Thiede,
Regional Administrator, Region 5.
[FR Doc. 2020-24487 Filed 11-4-20; 8:45 am]
BILLING CODE 6560-50-P