Document ID: EPA-HQ-OAR-2009-0927-0322
Agency: epa
Document Type: Rule
Title: Greenhouse Gas Reporting Program: Addition of Global Warming Potentials to the General Provisions and Amendments and Confidentiality Determinations for Fluorinated Gas Production
Posted Date: 2014-12-11T05:00Z

[Federal Register Volume 79, Number 238 (Thursday, December 11, 2014)]
[Rules and Regulations]
[Pages 73749-73796]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2014-28444]

[[Page 73749]]

Vol. 79

Thursday,

No. 238

December 11, 2014

Part III

Environmental Protection Agency

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40 CFR Part 98

Greenhouse Gas Reporting Program: Addition of Global Warming Potentials 
to the General Provisions and Amendments and Confidentiality 
Determinations for Fluorinated Gas Production; Final Rule

  Federal Register / Vol. 79 , No. 238 / Thursday, December 11, 2014 / 
Rules and Regulations  

[[Page 73750]]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 98

[EPA-HQ-OAR-2009-0927; FRL-9919-70-OAR]
RIN 2060-AR78

Greenhouse Gas Reporting Program: Addition of Global Warming 
Potentials to the General Provisions and Amendments and Confidentiality 
Determinations for Fluorinated Gas Production

AGENCY: Environmental Protection Agency.

ACTION: Final rule.

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SUMMARY: The Environmental Protection Agency (EPA) is adding chemical-
specific and default global warming potentials (GWPs) for a number of 
fluorinated greenhouse gases (F-GHGs) and fluorinated heat transfer 
fluids (F-HTFs) to the general provisions of the Greenhouse Gas 
Reporting Rule. Currently, these fluorinated GHGs and HTFs are not 
assigned GWPs under the rule. The changes will increase the 
completeness and accuracy of the carbon dioxide (CO2)-
equivalent emissions calculated and reported by suppliers and emitters 
of fluorinated GHGs and HTFs. The EPA is also making conforming changes 
to the provisions for the Electronics Manufacturing and Fluorinated Gas 
Production source categories. In addition, the EPA is amending certain 
provisions of the Fluorinated Gas Production source category to reduce 
the level of detail in which emissions are reported, eliminate the 
mass-balance emission calculation method, and clarify the emission 
factor method. These amendments also include an alternative 
verification approach for this source category in lieu of collecting 
certain data elements for which the EPA has identified disclosure 
concerns and for which the reporting deadline was deferred until March 
31, 2015. In addition, this action establishes confidentiality 
determinations for certain reporting requirements of the Fluorinated 
Gas Production source category.

DATES: This final rule is effective on January 1, 2015.

ADDRESSES: All documents in the docket are listed in the http://www.regulations.gov index. Although listed in the index, some 
information is not publicly available (e.g., confidential business 
information (CBI) or other information whose disclosure is restricted 
by statute). Certain other material, such as copyrighted material, will 
be publicly available only in hard copy. Publicly available docket 
materials are available either electronically in http://www.regulations.gov or in hard copy at the Air Docket, EPA WJC West 
Building, Room 3334, 1301 Constitution Ave. NW., Washington, DC. This 
Docket Facility is open from 8:30 a.m. to 4:30 p.m., Monday through 
Friday, excluding legal holidays. The telephone number for the Public 
Reading Room is (202) 566-1744 and the telephone number for the Air 
Docket is (202) 566-1742.

FOR FURTHER INFORMATION CONTACT: Carole Cook, Climate Change Division, 
Office of Atmospheric Programs (MC-6207J), Environmental Protection 
Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460; telephone 
number: (202) 343-9263; fax number: (202) 343-2342; email address: 
GHGReporting@epa.gov. For technical information, please go to the 
Greenhouse Gas Reporting Rule Program Web site at http://www.epa.gov/ghgreporting/index.html. To submit a question, select Rule Help Center, 
followed by Contact Us.
    Worldwide Web (WWW). In addition to being available in the docket, 
an electronic copy of this final rule will also be available through 
the WWW. Following the Administrator's signature, a copy of this action 
will be posted on the EPA's Greenhouse Gas Reporting Program rule Web 
site at http://www.epa.gov/ghgreporting/index.html.

SUPPLEMENTARY INFORMATION:
    Regulated Entities. The Administrator determined that this action 
is subject to the provisions of Clean Air Act (CAA) section 307(d). See 
CAA section 307(d)(1)(V) (the provisions of CAA section 307(d) apply to 
``such other actions as the Administrator may determine''). These are 
amendments to existing regulations and affect emitters and suppliers of 
fluorinated GHGs. Regulated categories and examples of affected 
entities include those listed in Table 1 of this preamble.

           Table 1--Examples of Affected Entities by Category
------------------------------------------------------------------------
                                                   Examples of affected
            Category                  NAICS             facilities
------------------------------------------------------------------------
Electrical Equipment Use.......          221121  Electric bulk power
                                                  transmission and
                                                  control facilities.
Electrical Equipment                      33531  Power transmission and
 Manufacture or Refurbishment.                    distribution
                                                  switchgear and
                                                  specialty transformers
                                                  manufacturing
                                                  facilities.
Electronics Manufacturing......          334111  Microcomputers
                                                  manufacturing
                                                  facilities.
                                         334413  Semiconductor,
                                                  photovoltaic (solid-
                                                  state) device
                                                  manufacturing
                                                  facilities.
                                         334419  Liquid crystal display
                                                  unit screens
                                                  manufacturing
                                                  facilities.
                                         334419  Micro-electro-
                                                  mechanical systems
                                                  manufacturing
                                                  facilities.
Fluorinated Gas Production.....          325120  Industrial gases
                                                  manufacturing
                                                  facilities.
Importers and Exporters of Pre-          423730  Air-conditioning
 charged Equipment and Closed-           333415   equipment (except room
 Cell Foams.                                      units) merchant
                                                  wholesalers.
                                                 Air-conditioning
                                                  equipment (except
                                                  motor vehicle)
                                                  manufacturing.
                                         336391  Motor vehicle air-
                                                  conditioning
                                                  manufacturing.
                                         423620  Air-conditioners, room,
                                                  merchant wholesalers.
                                         443111  Household appliance
                                                  stores.
                                         423730  Automotive air-
                                                  conditioners merchant
                                                  wholesalers.
                                         326150  Polyurethane foam
                                                  products
                                                  manufacturing.
                                         335313  Circuit breakers,
                                                  power, manufacturing.
                                         423610  Circuit breakers
                                                  merchant wholesalers.
Magnesium Production...........          331419  Primary refiners of
                                                  nonferrous metals by
                                                  electrolytic methods.
------------------------------------------------------------------------

    Table 1 of this preamble is not intended to be exhaustive, but 
rather provides a guide for readers regarding facilities likely to be 
affected by this action. Types of facilities different from those 
listed in the table could also be subject to reporting requirements. To 
determine whether you are affected by this action, you should carefully 
examine the applicability criteria found in 40 CFR part 98, subpart A 
or the relevant criteria in subparts I, L, T, DD,

[[Page 73751]]

SS, OO, and QQ. If you have questions regarding the applicability of 
this action to a particular facility, consult the person listed in the 
preceding FOR FURTHER INFORMATION CONTACT section.
    What is the effective date? The final rule is effective on January 
1, 2015. Section 553(d) of the Administrative Procedure Act (APA), 5 
U.S.C. Chapter 5, generally provides that rules may not take effect 
earlier than 30 days after they are published in the Federal Register. 
EPA is issuing this final rule under section 307(d)(1) of the Clean Air 
Act, which states: ``The provisions of section 553 through 557 * * * of 
Title 5 shall not, except as expressly provided in this section, apply 
to actions to which this subsection applies.'' Thus, section 553(d) of 
the APA does not apply to this rule. EPA is nevertheless acting 
consistently with the purposes underlying APA section 553(d) in making 
this rule effective on January 1, 2015. Section 5 U.S.C. 553(d)(3) 
allows an effective date less than 30 days after publication ``as 
otherwise provided by the agency for good cause found and published 
with the rule.'' As explained below, EPA finds that there is good cause 
for this rule to become effective on January 1, 2015, even though this 
may result in an effective date fewer than 30 days from date of 
publication in the Federal Register.
    While this action is being signed prior to December 1, 2014, there 
is likely to be a significant delay in the publication of this rule as 
it contains complex equations and tables and is relatively long. As an 
example, then-Acting Administrator Bob Perciasepe signed the proposed 
2013 Revisions Rule on March 8, 2013, but the proposed rule was not 
published in the Federal Register until April 2, 2013.
    The purpose of the 30-day waiting period prescribed in 5 U.S.C. 
553(d) is to give affected parties a reasonable time to adjust their 
behavior and prepare before the final rule takes effect. To employ the 
5 U.S.C. 553(d)(3) ``good cause'' exemption, an agency must ``balance 
the necessity for immediate implementation against principles of 
fundamental fairness which require that all affected persons be 
afforded a reasonable amount of time to prepare for the effective date 
of its ruling.'' \1\ Where, as here, the final rule will be signed and 
made available on the EPA Web site more than 30 days before the 
effective date, but where the publication is likely to be delayed due 
to the complexity and length of the rule, the regulated entities are 
afforded this reasonable amount of time. This is particularly true 
given that most of the revisions being made in this package provide 
flexibilities to sources covered by the reporting rule or require no 
additional action by affected sources. We do not anticipate that 
finalizing the GWPs in this action will expand the set of facilities 
required to report under the Greenhouse Gas Reporting rule. However, in 
the event that this occurs, these amendments include flexibility 
provisions such as Best Available Monitoring Methods. We balance these 
circumstances with the need for the amendments to be effective by 
January 1, 2015; a delayed effective date would result in regulatory 
uncertainty, program disruption, and an inability to have the 
amendments (many of which clarify requirements, relieve burden, and/or 
are made at the request of the regulated facilities) effective for the 
2015 reporting year. Accordingly, we find good cause exists to make 
this rule effective on January 1, 2015, consistent with the purposes of 
5 U.S.C. 553(d)(3).
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    \1\ Omnipoint Corp. v. FCC, 78 F3d 620, 630 (D.C. Cir. 1996), 
quoting U.S. v. Gavrilovic, 551 F.2d 1099, 1105 (8th Cir. 1977).
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    Judicial Review. Under CAA section 307(b)(1), judicial review of 
this final rule is available only by filing a petition for review in 
the U.S. Court of Appeals for the District of Columbia Circuit (the 
Court) by February 9, 2015. Under CAA section 307(d)(7)(B), only an 
objection to this final rule that was raised with reasonable 
specificity during the period for public comment can be raised during 
judicial review. Section 307(d)(7)(B) of the CAA also provides a 
mechanism for the EPA to convene a proceeding for reconsideration, 
``[i]f the person raising an objection can demonstrate to EPA that it 
was impracticable to raise such objection within [the period for public 
comment] or if the grounds for such objection arose after the period 
for public comment (but within the time specified for judicial review) 
and if such objection is of central relevance to the outcome of the 
rule.'' Any person seeking to make such a demonstration to us should 
submit a Petition for Reconsideration to the Office of the 
Administrator, Environmental Protection Agency, Room 3000, EPA WJC West 
Building, 1200 Pennsylvania Ave. NW., Washington, DC 20460, with a copy 
to the person listed in the preceding FOR FURTHER INFORMATION CONTACT 
section, and the Associate General Counsel for the Air and Radiation 
Law Office, Office of General Counsel (Mail Code 2344A), Environmental 
Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20004. 
Note that under CAA section 307(b)(2), the requirements established by 
this final rule may not be challenged separately in any civil or 
criminal proceedings brought by the EPA to enforce these requirements.
    Acronyms and Abbreviations. The following acronyms and 
abbreviations are used in this document.

APA Administrative Procedure Act
AR4 IPCC Fourth Assessment Report
AR5 IPCC Fifth Assessment Report
CAA Clean Air Act
CBI confidential business information
CFC chlorofluorocarbon
CFR Code of Federal Regulations
CH4 methane
CO2 carbon dioxide
CO2e carbon dioxide equivalent
DE destruction efficiency
EAR Export Administration Regulations
EF emission factor
ECF emission calculation factor
e-GGRT Electronic Greenhouse Gas Reporting Tool
EPA U.S. Environmental Protection Agency
FR Federal Register
F-GHG fluorinated greenhouse gas
F-HTF fluorinated heat transfer fluid
GHG greenhouse gas
GHGRP Greenhouse Gas Reporting Program
GWP global warming potential
HCFC hydrochlorofluorocarbon
HCFE hydrochlorofluoroether
HFC hydrofluorocarbon
HFE hydrofluoroether
HQ Headquarters
IPCC Intergovernmental Panel on Climate Change
Kg kilograms
Mscf thousand standard cubic feet
mtCO2e metric tons carbon dioxide equivalent
N2O nitrous oxide
NAICS North American Industry Classification System
NF3 nitrogen trifluoride
NODA Notice of Data Availability
NTTAA National Technology Transfer and Advancement Act of 1995
OMB Office of Management and Budget
PFC perfluorocarbon
RFA Regulatory Flexibility Act
RY reporting year
SAR Second Assessment Report
SF6 sulfur hexafluoride
TAR Third Assessment Report
TPY tons per year
UMRA Unfunded Mandates Reform Act of 1995
UNFCCC United Nations Framework Convention on Climate Change
U.S. United States
WWW Worldwide Web

    Organization of This Document. The following outline is provided to 
aid in locating information in this preamble.

I. Background
    A. How is this preamble organized?
    B. Overview of Previously Proposed Actions Being Finalized in 
This Final Rule
    C. Background on the GHG Reporting Rule
    D. Legal Authority
    E. Summary of Final Amendments
    F. When will these amendments apply?
    G. Relationship Between This Final Rule, the Proposed Rule To 
Add GWPs to

[[Page 73752]]

Table A-1, and the Proposed Amendments to Subpart L
    H. How will these amendments affect confidentiality 
determinations?
II. Overview of Final Amendments and Responses to Public Comments
    A. Amendments to Table A-1
    B. Amendments to Subpart L Reporting Requirements
    C. Removal of the Mass-Balance Method From Subpart L
    D. Clarification of the Subpart L Emission Factor Method
III. Overview and Approach to Final CBI Determinations
    A. Final Confidentiality Determinations for New, Revised, and 
Unchanged Data Elements
    B. Public Comments on the Proposed Confidentiality 
Determinations and Responses to Public Comment
IV. Impacts of the Final Rule
    A. How were the costs of this final rule estimated?
    B. Do the final confidentiality determinations change the 
impacts of the final amendments?
V. Statutory and Executive Order Reviews
    A. Executive Order 12866: Regulatory Planning and Review and 
Executive Order 13563: Improving Regulation and Regulatory Review
    B. Paperwork Reduction Act
    C. Regulatory Flexibility Act (RFA)
    D. Unfunded Mandates Reform Act (UMRA)
    E. Executive Order 13132: Federalism
    F. Executive Order 13175: Consultation and Coordination With 
Indian Tribal Governments
    G. Executive Order 13045: Protection of Children From 
Environmental Health Risks and Safety Risks
    H. Executive Order 13211: Actions That Significantly Affect 
Energy Supply, Distribution, or Use
    I. National Technology Transfer and Advancement Act
    J. Executive Order 12898: Federal Actions To Address 
Environmental Justice in Minority Populations and Low-Income 
Populations
    K. Congressional Review Act

I. Background

A. How is this preamble organized?

    The first section of this preamble contains an overview of the 
previously proposed actions being finalized by today's final rule, 
background information regarding the Greenhouse Gas Reporting Program 
(GHGRP), an overview of the final amendments, information on when the 
amendments become effective, how this rule affects confidentiality 
determinations, and how this rule relates to other GHG reporting 
actions. This section also discusses the EPA's use of our legal 
authority under the CAA to collect data under the Greenhouse Gas 
Reporting Rule, hereinafter referred to as the ``GHG Reporting Rule'' 
or ``Part 98.''
    The second section of this preamble is organized by the provisions 
being amended (e.g., addition of chemical-specific and default GWPs to 
the general provisions, emission reporting requirements for fluorinated 
gas production, etc.). For each set of provisions, the preamble 
describes the amendments that are being finalized, summarizes the 
changes since the proposed rule(s), summarizes the significant public 
comments received, and presents the EPA's response to those comments. 
Additional comments and responses can be found in the document, 
``Response to Public Comments on Proposed Addition of GWPs to Subpart A 
and Proposed Amendments to Subpart L'' in Docket number EPA-HQ-OAR-
2009-0927.
    The third section of this preamble discusses the confidentiality 
determinations for the data reporting elements in subpart L as amended 
by today's action.
    The fourth section of this preamble discusses the economic impacts 
of the amendments.
    Finally, the fifth section of this preamble discusses the various 
statutory and executive order requirements applicable to this action.

B. Overview of Previously Proposed Actions Being Finalized in This 
Final Rule

    In today's final rule, we are finalizing amendments and 
determinations proposed in four separate previous actions. The 
amendments and determinations that we are finalizing from three of 
these actions are specifically related to Fluorinated Gas Production 
(subpart L). The four actions include, in chronological order:
     The proposed rule entitled ``Proposed Confidentiality 
Determinations for Data Elements Under the Mandatory Reporting of 
Greenhouse Gases Rule'' (hereinafter referred to as ``2012 Proposed 
Confidentiality Determinations''), published on January 10, 2012 (77 FR 
1434). As discussed further in Section III of this preamble, we are 
finalizing many of the confidentiality determinations that were 
proposed in that action for the subpart L data elements that are not 
being removed or substantially revised elsewhere in this action.
     The proposed rule entitled ``Revisions to Reporting and 
Recordkeeping Requirements, and Proposed Confidentiality Determinations 
Under the Greenhouse Gas Reporting Program'' (hereinafter referred to 
as the ``Proposed Inputs Rule''), published on September 11, 2013 (78 
FR 55994). We are finalizing the revisions proposed in that action to 
the subpart L reporting and recordkeeping requirements, with certain 
changes as discussed in Section II.B of this preamble.
     The proposed rule entitled ``Greenhouse Gas Reporting 
Program: Amendments and Confidentiality Determinations for Fluorinated 
Gas Production'' (hereinafter referred to as ``Proposed Amendments to 
Subpart L''), published on November 19, 2013 (78 FR 69337). We are 
finalizing that action, including the proposed confidentiality 
determinations for new or substantially revised data elements, with 
certain changes as discussed in Sections II.B and III of this preamble.
     The proposed rule entitled ``Greenhouse Gas Reporting 
Program: Addition of Global Warming Potentials'' (hereinafter referred 
to as ``Proposed Rule to Add GWPs''), published on July 31, 2014 (79 FR 
44332). We are finalizing that action with certain changes as discussed 
in Section II.A of this preamble.

More background on the proposed amendments and determinations is 
provided in Sections I.C and III of this preamble.

C. Background on the GHG Reporting Rule

    Part 98 was initially published in the Federal Register on October 
30, 2009 (74 FR 56260). Part 98 became effective on December 29, 2009, 
and requires reporting of GHGs from certain facilities and suppliers. A 
subsequent document finalizing reporting requirements for Fluorinated 
Gas Production was published on December 1, 2010 (75 FR 74774). (The 
final rule published on December 1, 2010 is hereinafter referred to as 
the ``2010 Subpart L Rule'').
1. Background on Addition of GWPs to Subpart A
    Table A-1 to subpart A of 40 CFR part 98 (Table A-1) is a 
compendium of GWP values of certain GHGs that are required to be 
reported under one or more subparts of the GHG Reporting Rule. These 
GWPs are used to convert tons of chemical into tons of CO2-
equivalent (CO2e) for purposes of various calculations and 
reporting under the rule. As indicated in the Federal Register document 
for the final Part 98 (74 FR 56348), it is the EPA's intent to 
periodically update Table A-1 as GWPs are evaluated or reevaluated by 
the scientific community. This will provide a more accurate and 
complete account of the atmospheric impacts of GHG emissions and 
supplies.
    GWPs that have been newly evaluated or reevaluated in the peer-
reviewed

[[Page 73753]]

scientific literature are periodically consolidated and published by 
the Intergovernmental Panel on Climate Change (IPCC). The initial Table 
A-1 finalized in the 2009 GHG Reporting Rule included GWP values from 
the Second Assessment Report (SAR) and, for gases that were not 
included in SAR, from the Fourth Assessment Report \2\ (hereinafter 
referred to as ``IPCC AR4'' or ``AR4''). (In addition, Table A-1 
included a GWP for one fluorinated GHG that had been published in the 
peer-reviewed literature but not an IPCC report, the GWP for 
sevoflurane.) \3\ The IPCC recently published the Fifth Assessment 
Report (AR5), which contains GWPs for a number of fluorinated GHGs that 
were not included in either SAR or AR4.\4\
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    \2\ IPCC Fourth Assessment Report (AR4), 2007. Climate Change 
2007: The Physical Science Basis. Contribution of Working Group I to 
the Fourth Assessment Report of the Intergovernmental Panel on 
Climate Change [Core Writing Team, Pachauri, R.K and Reisinger, A. 
(eds.)]. IPCC, Geneva, Switzerland, 104 pp.
    \3\ Langbein, T., H. Sonntag, D. Trapp, A. Hoffmann, W. Malms, 
E.-P. R[ouml]th, V. M[ouml]rs and R. Zellner, 1999. ``Volatile 
anaesthetics and the atmosphere: atmospheric lifetimes and 
atmospheric effects of halothane, enflurane, isoflurane, desflurane 
and sevoflurane.'' British Journal of Anaesthetics 82 (1): 66-73, 
discussed in the Technical Support Document for Industrial Gas 
Supply: Production, Transformation, and Destruction of Fluorinated 
GHGs and N2O, Office of Air and Radiation, USEPA, 
February 6, 2009.
    \4\ IPCC, 2013: Climate Change 2013: The Physical Science Basis. 
Contribution of Working Group I to the Fifth Assessment Report of 
the Intergovernmental Panel on Climate Change [Stocker, T.F., D. 
Qin, G.K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, 
Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, 
Cambridge, United Kingdom and New York, NY, USA, 1535 pp.
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    The scope of the fluorinated compounds reported under the GHGRP is 
established by the definition of ``fluorinated GHG'' at 40 CFR 98.6 
(and, for subpart I, ``fluorinated HTF'' at 40 CFR 98.98), rather than 
by inclusion in Table A-1. The EPA therefore receives reports of 
emissions and supplies for a number of fluorinated compounds that have 
not had GWPs included in Table A-1.\5\ These supplies, and a large 
fraction of these emissions, have been assigned a GWP of zero for 
purposes of GHGRP calculations and reporting, including threshold 
determinations.\6\
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    \5\ Such reports have been received under subparts I, L, OO, and 
QQ.
    \6\ For most subparts, including subparts I, OO, and QQ, 
reporters have been required to report CO2e only for 
fluorinated GHGs listed in Table A-1. Subpart I included a default 
GWP of 2,000 for purposes of various calculations (but not 
reporting). Subpart L included default GWPs of 2,000 and 10,000 for 
purposes of both calculations and reporting.
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    As discussed in the Proposed Rule to Add GWPs, the EPA has recently 
undertaken several efforts to improve the quality and completeness of 
the GWPs used to calculate and report emissions under the GHGRP. On 
November 29, 2013, we published the final rule entitled ``2013 
Revisions to the Greenhouse Gas Reporting Rule and Final 
Confidentiality Determinations for New or Substantially Revised Data 
Elements'' (78 FR 71904, November 29, 2013; hereinafter referred to as 
``final 2013 Revisions Rule''). That rule amended Table A-1 to update 
the GWPs for GHGs included in AR4 to the AR4 values. The revisions 
improved the quality of reported CO2e emissions and supply 
by reflecting improved scientific understanding (since the publication 
of SAR) of the radiative forcing and atmospheric lifetimes of the GHGs 
that have GWPs in AR4. In addition, for those GHGs, the revisions 
ensured comparability of data collected in the GHGRP to the Inventory 
of U.S. Greenhouse Gas Emissions and Sinks that the EPA compiles 
annually to meet international commitments under the United Nations 
Framework Convention on Climate Change (UNFCCC). Countries that submit 
GHG inventories under the UNFCCC have decided to use AR4 GWPs for the 
GHGs that have AR4 GWPs, beginning with the inventories submitted in 
2015.\7\
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    \7\ As discussed in the actions for the proposed and final 2013 
Revisions Rule, the IPCC publishes Scientific Assessment Reports, 
including updated and expanded sets of GWPs, approximately every six 
years. The countries that submit annual GHG inventories under the 
UNFCCC update the GWPs that they use for those inventories less 
frequently. For example, the GWPs from the IPCC SAR have been used 
for UNFCCC reporting for over a decade.
---------------------------------------------------------------------------

    On April 5, 2013, we published a Notice of Data Availability (NODA) 
(78 FR 20632) regarding another 43 fluorinated GHGs and HTFs whose GWPs 
were not included in Table A-1.\8\ On November 19, 2013, we published 
the Proposed Amendments to Subpart L, including a proposed amendment to 
establish within subpart L a new set of default GWPs by fluorinated GHG 
group for the emissions calculated and reported under that subpart. The 
proposed set of five default GWPs was intended to replace the current 
set of two default GWPs in subpart L (discussed further in Section 
I.C.2 of this preamble) that are applied to fluorinated GHGs that are 
not included in Table A-1, increasing the precision and accuracy of 
calculated CO2e emissions. We requested and received 
comments on the GWP-related information made available by the NODA and 
on the proposed fluorinated GHG groups and associated default GWPs 
included in the Proposed Amendments to Subpart L.
---------------------------------------------------------------------------

    \8\ We had not included these compounds in the proposed 2013 
Revisions Rule because documentation for GWPs for these compounds 
was limited at the time that the proposal was being prepared. We 
subsequently received more documentation from the compounds' 
manufacturers.
---------------------------------------------------------------------------

    On July 31, 2014, after considering the public comments on all of 
the actions described above, we published the Proposed Rule to Add 
GWPs, in which we proposed to amend Table A-1 to add chemical-specific 
and default GWPs. The 103 proposed chemical-specific GWPs were 
primarily drawn from the Fifth Assessment Report (AR5). The eight 
proposed default GWPs were intended for fluorinated GHGs and 
fluorinated HTFs for which peer-reviewed GWPs are not available in AR4, 
AR5, or other sources, and they were calculated and applied based on 
fluorinated GHG group. Each fluorinated GHG group was composed of 
compounds with similar chemical structures, which have similar 
atmospheric lifetimes and GWPs.
    The Proposed Rule to Add GWPs reflected our efforts to weigh 
multiple considerations in updating the set of GWPs used under the 
GHGRP, including the accuracy of the GWPs, the consistency of those 
GWPs with the GWPs used in other national and international programs, 
the predictability and stability of the GWPs, the source of the GWPs, 
and the impacts of those GWPs on other regulatory programs. In the 
proposed rule, we weighed these considerations in the context of 
proposing to add GWPs for GHGs that are not presently included in Table 
A-1. For such GHGs, the improvement in accuracy associated with listing 
a GWP in Table A-1 is likely to be large, because the alternative is 
generally to continue to assign these GHGs a GWP of zero for purposes 
of the calculations and reporting under the GHGRP.
    The EPA is finalizing the addition of both chemical-specific and 
default GWPs in this action, with certain changes following 
consideration of comments submitted. Responses to significant comments 
submitted on the proposed addition can be found in Section II of this 
preamble.
2. Background on Amendments to Subpart L
    On January 10, 2012, the EPA published proposed determinations 
regarding whether the GHGRP data elements in eight subparts of Part 98, 
including subpart L, would or would not be entitled to confidential 
treatment under the CAA (77 FR 1434). In that proposed rule, the EPA 
proposed that the chemical identities and quantities of the fluorinated 
GHG emissions at the

[[Page 73754]]

process level, reported under subpart L, are ``emission data.'' Under 
section 114(c) of the CAA, ``emission data'' are not eligible for 
confidential treatment and must be made publicly available.
    The EPA received two comments on that proposed rule related to 
subpart L. The two commenters raised concerns that the disclosure of 
the identity and quantities of the fluorinated GHGs emitted at the 
process level, from either process vents or fugitive sources, would 
reveal ``trade secrets'' regarding individual chemical production 
processes. In response to these comments, the EPA promulgated two sets 
of amendments that deferred full subpart L reporting until March, 2015, 
and established temporary, less detailed reporting requirements for 
reporting years (RYs) 2011, 2012, and 2013 (77 FR 51477, August 24, 
2012, and 78 FR 71904, November 29, 2013). This was intended to allow 
the EPA additional time to evaluate the concerns raised by the 
commenters and to consider how the rule might be changed to balance 
these concerns with the EPA's need to obtain the data necessary to 
inform the development of future GHG policies and programs. The 
temporary provisions required facilities to report total fluorinated 
GHG emissions at the facility level in tons of CO2e and, to 
enable such reporting for fluorinated GHGs that did not have GWPs on 
Table A-1, established two default GWPs.
    On November 19, 2013, the EPA published the Proposed Amendments to 
Subpart L. In addition to the five default GWPs discussed in Section 
I.C.1 of this preamble, the proposed amendments included revisions to 
the reporting requirements of subpart L to allow more aggregated 
reporting (as compared to the 2010 Subpart L rule) to address potential 
disclosure concerns; removal of the option to use the mass-balance 
approach; clarification of the emission factor approach; and various 
technical corrections. The EPA is finalizing those amendments in this 
action, with certain changes following consideration of comments 
submitted. Responses to significant comments submitted on the proposed 
amendments can be found in Section II of this preamble.
    On September 11, 2013 (78 FR 55994), the EPA published the Proposed 
Inputs Rule, in which we proposed amendments to the recordkeeping and 
reporting provisions of Part 98, including an alternative verification 
approach, to address the inputs to emission equations for which 
disclosure concerns were identified. The Proposed Inputs Rule included 
proposed revisions to the reporting and recordkeeping provisions of 
subpart L. On October 24, 2014, the EPA issued the Final Inputs Rule 
(79 FR 63750). In that rule, the EPA did not take final action on the 
subpart L inputs to emission equations but expressed its intent to 
address those inputs in a separate rulemaking (79 FR 63754). We are 
finalizing in this action various proposals, including the above-
mentioned proposed revisions to subpart L inputs to emission equations 
(with certain changes discussed in Section II of this preamble), to 
consolidate all of the revisions to subpart L that are related to 
disclosure concerns. As described in the Proposed Inputs Rule (78 FR 
55994), we evaluated the data elements for which reporting was deferred 
to 2015. Our evaluation involved a four-step process. The results of 
the final evaluation are documented in the four following memoranda 
available in the EPA's Docket ID No. EPA-HQ-OAR-2010-0929:
     ``Summary of Data Collected to Support Determination of 
Public Availability of Inputs to Emission Equations for which Reporting 
was Deferred to March 31, 2015,'' September 2014.
     ``Final Evaluation of Competitive Harm from Disclosure of 
`Inputs to Equations' Data Elements Deferred to March 31, 2015,'' 
September 2014.
     ``Evaluation of Alternative Calculation Methods,'' August 
2013.
     ``Evaluation of Alternative Verification Approaches For 
Greenhouse Gas Reporting Rule Subparts for which Reporting of Inputs to 
Emission Equations was Deferred to March 31, 2015,'' August 2013.

D. Legal Authority

    The EPA is finalizing these rule amendments under its existing CAA 
authority provided in CAA section 114. As stated in the preamble to the 
2009 final GHG reporting rule (74 FR 56260, October 30, 2009), CAA 
section 114(a)(1) provides the EPA broad authority to require the 
information required to be gathered by this rule because such data 
inform and are relevant to the EPA's carrying out a wide variety of CAA 
provisions. See the preambles to the proposed (74 FR 16448, April 10, 
2009) and final Part 98 (74 FR 56260) for further information.
    In addition, the EPA is finalizing confidentiality determinations 
for certain data elements required under the GHG Reporting Rule under 
its authorities provided in sections 114, 301, and 307 of the CAA. As 
mentioned above, CAA section 114 provides the EPA authority to collect 
the information in Part 98. Section 114(c) requires that the EPA make 
publicly available information obtained under section 114 except for 
information that is not emission data and that qualifies for 
confidential treatment. The Administrator has determined that this 
final rule is subject to the provisions of section 307(d) of the CAA.

E. Summary of Final Amendments

    The EPA is amending the General Provisions of the Greenhouse Gas 
Reporting Rule as well as certain provisions of that rule that affect 
Fluorinated Gas Production facilities. The final amendments include the 
following changes:
     Changes to the General Provisions (subpart A) and 
Conforming Changes to Electronics Manufacturing (subpart I) and 
Fluorinated Gas Production (subpart L):

--Revision of Table A-1 to subpart A of 40 CFR part 98 (Table A-1), the 
compendium of GWPs used to calculate CO2e under the GHGRP, 
to add chemical-specific GWPs for approximately 100 fluorinated GHGs. 
The chemical-specific GWPs are primarily drawn from AR5.
--Revision of Table A-1 to add default GWPs for fluorinated GHGs and 
fluorinated HTFs for which peer-reviewed GWPs are not available. These 
default GWPs are calculated and assigned based on fluorinated GHG group 
and are based on the chemical-specific GWPs for the compounds in Table 
A-1 as revised by this rule, that is, on a combination of AR4 and AR5 
GWPs.
--Conforming changes to subparts I and L, which previously included 
their own default GWPs for purposes of certain CO2e 
calculations.

     Changes to Fluorinated Gas Production (subpart L):

--Revision of the reporting requirements of subpart L to allow more 
aggregated reporting as compared to the 2010 Subpart L rule to address 
potential disclosure concerns (see Section II.B.1 of this preamble).
--Addition of a requirement to use an EPA-provided inputs verification 
tool (IVT) for certain inputs to subpart L emission equations for which 
reporting was deferred to 2015 and for which disclosure concerns have 
been identified.
--Removal of the requirement to report certain inputs to subpart L 
emission equations for which reporting was deferred to 2015 and for 
which disclosure concerns have been identified. (This includes the 
revising of Table A-7 in Subpart A.)
--Removal of the requirement to report certain inputs to subpart L 
emission

[[Page 73755]]

equations for which reporting was deferred to 2015 due to their not 
being useful for data verification or informing future GHG policy 
development in the absence of other deferred inputs for which the 
reporting requirements are being removed.
--Removal of the option to use the mass-balance approach.
--Clarification of the emission factor approach.
--Various technical corrections.

F. When will these amendments apply?

    Amendments to Table A-1. The amendments to Table A-1 apply to 
reporting that occurs in calendar year 2015 and subsequent years. For 
all subparts except subpart L, discussed below, this is limited to the 
reporting of data gathered in 2014 (i.e., RY 2014) and future years.\9\
---------------------------------------------------------------------------

    \9\ With the exception of subpart L, we are not requiring or 
allowing reporters to submit revised certified reports for RYs 2010, 
2011, 2012, or 2013 with CO2e values calculated using the 
revised GWPs. This is the same approach as we adopted in the final 
Revisions Rule (78 FR 71939).
---------------------------------------------------------------------------

    Subpart L. With one exception, discussed below, the amendments 
apply to reporting under 40 CFR part 98, subpart L (subpart L) that 
occurs in calendar year 2015 and subsequent years. This includes 
reporting of information for RY 2014 and subsequent reporting years 
(i.e., information related to emissions that occur in 2014 and 
subsequent years). It also includes reporting of certain information 
for RYs 2011, 2012, and 2013. We previously deferred full reporting for 
RYs 2011 and 2012 under the rule titled ``2012 Technical Corrections, 
Clarifying and Other Amendments to the Greenhouse Gas Reporting Rule, 
and Confidentiality Determinations for Certain Data Elements of the 
Fluorinated Gas Source Category'' (77 FR 51477; August 24, 2012). We 
deferred full reporting for RY 2013 under the Final 2013 Revisions 
Rule.
    Under today's final action, the requirement to enter inputs to 
subpart L emission equations into IVT applies to RY 2015 and all 
subsequent reporting years. As discussed further in Section II.B.1 of 
this preamble, starting with RY 2015 (which is required to be reported 
by March 31, 2016) will allow the EPA to develop a subpart L IVT module 
that integrates the subpart L reporting requirements being finalized in 
this action.

G. Relationship Between This Final Rule, the Proposed Rule To Add GWPs 
to Table A-1, and the Proposed Amendments to Subpart L

    This rule is finalizing both the Proposed Rule to Add GWPs to Table 
A-1 and the Proposed Amendments to Subpart L. As discussed in the 
Proposed Rule to Add GWPs, the default GWPs that are being finalized in 
this action will apply across Part 98, including to subpart L. Thus, 
subpart L will no longer include its own default GWPs. This will 
simplify subpart L and ensure future as well as current consistency 
among the default GWPs applied across Part 98.

H. How will these amendments affect confidentiality determinations?

    In this action, we are finalizing confidentiality determinations 
for certain subpart L data elements. The EPA proposed confidentiality 
determinations for the subpart L data elements (77 FR 1434, January 10, 
2012), and then proposed additional confidentiality determinations for 
new or substantially revised subpart L data elements (78 FR 69337, 
November 19, 2013). The final confidentiality determinations for these 
data elements together with our rationale are discussed in detail in 
Section III.A of this preamble. For four of the existing data elements, 
we are not finalizing confidentiality determinations for the reasons 
discussed in Section III.A. In addition, as with inputs to emission 
equations in other Part 98 subparts, we are not finalizing 
confidentiality determinations for any subpart L inputs to emission 
equations data. Lastly, the amendments remove certain other existing 
subpart L reporting requirements, while continuing to require that 
records be kept of these elements. Because the EPA is finalizing the 
removal of these data elements, the EPA is not taking final action on 
the previously proposed confidentiality determinations for the removed 
data elements.

II. Overview of Final Amendments and Responses to Public Comments

A. Amendments to Table A-1

1. Summary of Final Amendments to Table A-1
    As proposed, we are amending Table A-1 to subpart A of Part 98 to 
add chemical-specific and default GWPs. We are adding peer-reviewed, 
chemical-specific GWPs for the 98 compounds listed in Table 2 of this 
preamble. To reflect the latest scientific consensus regarding 
fluorinated GHGs that do not have GWPs in AR4, we are adopting the GWPs 
provided for 97 of these 98 compounds in Table 8.A.1 of AR5.\10\
---------------------------------------------------------------------------

    \10\ For one compound, CF3I, which was inadvertently 
excluded from Table A-1 previously, we are adding an AR4 GWP as 
proposed.

                            Table 2--Chemical-Specific GWPs for Addition to Table A-1
----------------------------------------------------------------------------------------------------------------
                                                                                                    AR5 GWP (100-
    Common or trade name        Chemical name(s)        CAS No.             Chemical formula            year)
----------------------------------------------------------------------------------------------------------------
                                                 Saturated HFCs
----------------------------------------------------------------------------------------------------------------
                             Saturated HFCs with two or fewer carbon-hydrogen bonds
----------------------------------------------------------------------------------------------------------------
HFC-227ca...................  1,1,1,2,2,3,3-              2252-84-8  CF3CF2CHF2                             2640
                               Heptafluoropropane.
HFC-329p....................  1,1,1,2,2,3,3,4,4-           375-17-7  CHF2CF2CF2CF3                          2360
                               Nonafluorobutane.
----------------------------------------------------------------------------------------------------------------
                             Saturated HFCs with three or more carbon-hydrogen bonds
----------------------------------------------------------------------------------------------------------------
HFC-245cb...................  1,1,1,2,2-                  1814-88-6  CF3CF2CH3                              4620
                               Pentafluoropropane.
HFC-245ea...................  1,1,2,3,3-                 24270-66-4  CHF2CHFCHF2                             235
                               Pentafluoropropane.
HFC-245eb...................  1,1,1,2,3-                   431-31-2  CH2FCHFCF3                              290
                               Pentafluoropropane.
HFC-263fb...................  1,1,1-                       421-07-8  CH3CH2CF3                                76
                               Trifluoropropane.
HFC-272ca...................  2,2-Difluoropropane.         420-45-1  CH3CF2CH3                               144
----------------------------------------------------------------------------------------------------------------
                                                 Saturated PFCs
----------------------------------------------------------------------------------------------------------------
PFC-6-1-12..................  Hexadecafluoroheptan         335-57-9  C7F16; CF3(CF2)5CF3                    7820
                               e.

[[Page 73756]]

 
PFC-7-1-18..................  Octadecafluorooctane         307-34-6  C8F18; CF3(CF2)6CF3                    7620
                              Perfluorodecalin           60433-11-6  Z-C10F18                               7240
                               (cis).                    60433-12-7  E-C10F18                               6290
                              Perfluorodecalin
                               (trans).
----------------------------------------------------------------------------------------------------------------
                                                 Saturated HFEs
----------------------------------------------------------------------------------------------------------------
                             Saturated HFEs and HCFEs with one carbon-hydrogen bond
----------------------------------------------------------------------------------------------------------------
HFE-329me3..................  1,1,1,2,3,3-              428454-68-6  CF3CFHCF2OCF3                          4550
                               Hexafluoro-3-
                               (trifluoromethoxy)p
                               ropane.
                              1,1,1,2,2,3,3-              3330-15-2  CF3CF2CF2OCHFCF3                       6490
                               Heptafluoro-3-
                               (1,2,2,2-
                               tetrafluoroethoxy)-
                               propane.
----------------------------------------------------------------------------------------------------------------
                             Saturated HFEs and HCFEs with two carbon-hydrogen bonds
----------------------------------------------------------------------------------------------------------------
HFE-236ca...................  1-(Difluoromethoxy)-       32778-11-3  CHF2OCF2CHF2                           4240
                               1,1,2,2-
                               tetrafluoroethane.
HCFE-235ca2; enflurane......  2-Chloro-1-                13838-16-9  CHF2OCF2CHFCl                           583
                               (difluoromethoxy)-
                               1,1,2-
                               trifluoroethane.
HG-02.......................  1-(Difluoromethoxy)-      205367-61-9  HF2C-(OCF2CF2)2-OCF2H                  3825
                               2-(2-
                               (difluoromethoxy)-
                               1,1,2,2-
                               tetrafluoroethoxy)-
                               1,1,2,2-
                               tetrafluoroethane.
HG-03.......................  1,1,3,3,4,4,6,6,7,7,      173350-37-3  HF2C-(OCF2CF2)3-OCF2H                  3670
                               9,9,10,10,12,12-
                               Hexadecafluoro-
                               2,5,8,11-
                               tetraoxadodecane.
HG-20.......................  (Difluoromethoxy)((d      249932-25-0  HF2C-(OCF2)2-OCF2H                     5300
                               ifluoromethoxy)difl
                               uoromethoxy)
                               difluoromethane.
HG-21.......................  1,1,3,3,5,5,7,7,8,8,      249932-26-1  HF2C-OCF2CF2OCF2OCF2O-CF2H             3890
                               10,10-Dodecafluoro-
                               2,4,6,9-
                               tetraoxadecane.
HG-30.......................  1,1,3,3,5,5,7,7,9,9-      188690-77-9  HF2C-(OCF2)3-OCF2H                     7330
                               Decafluoro-2,4,6,8-
                               tetraoxanonane.
                              1,1,3,3,4,4,6,6,7,7,      173350-38-4  HCF2O(CF2CF2O)4CF2H                    3630
                               9,9,10,10,12,12,13,
                               13,15,15-
                               eicosafluoro-
                               2,5,8,11,14-
                               Pentaoxapentadecane.
                              1,1,2-Trifluoro-2-         84011-06-3  CHF2CHFOCF3                            1240
                               (trifluoromethoxy)-
                               ethane.
                              Trifluoro(fluorometh        2261-01-0  CH2FOCF3                                751
                               oxy)methane.
----------------------------------------------------------------------------------------------------------------
                        Saturated HFEs and HCFEs with three or more carbon-hydrogen bonds
----------------------------------------------------------------------------------------------------------------
HFE-263m1; R-E-143a.........  1,1,2,2-Tetrafluoro-         690-22-2  CF3OCH2CH3                               29
                               1-
                               (trifluoromethoxy)e
                               thane.
HFE-347mmz1; Sevoflurane....  2-(Difluoromethoxy)-       28523-86-6  (CF3)2CHOCH2F                           216
                               1,1,1,3,3,3-
                               hexafluoropropane.
HFE-365mcf2.................  1-Ethoxy-1,1,2,2,2-        22052-81-9  CF3CF2OCH2CH3                            58
                               pentafluoroethane.
HFE-356mff2.................  bis(2,2,2-                   333-36-8  CF3CH2OCH2CF3                            17
                               trifluoroethylTrifl
                               uoroethyl) ether.
HG'-01......................  1,1,2,2-Tetrafluoro-       73287-23-7  CH3OCF2CF2OCH3                          222
                               1,2-dimethoxyethane.
HG'-02......................  1,1,2,2-Tetrafluoro-      485399-46-0  CH3O(CF2CF2O)2CH3                       236
                               1-methoxy-2-
                               (1,1,2,2-
                               tetrafluoro-2-
                               methoxyethoxy)ethan
                               e.
HG'-03......................  3,3,4,4,6,6,7,7,9,9,      485399-48-2  CH3O(CF2CF2O)3CH3                       221
                               10,10-Dodecafluoro-
                               2,5,8,11-
                               tetraoxadodecane.
                              Difluoro(methoxy)met         359-15-9  CH3OCHF2                                144
                               hane.
                              2-Chloro-1,1,2-              425-87-6  CH3OCF2CHFCl                            122
                               trifluoro-1-
                               methoxyethane.
                              1-Ethoxy-                  22052-86-4  CF3CF2CF2OCH2CH3                         61
                               1,1,2,2,3,3,3-
                               heptafluoropropane.
                              2-Ethoxy-3,3,4,4,5-       920979-28-8  C12H5F19O2                               56
                               pentafluorotetrahyd
                               ro-2,5-bis[1,2,2,2-
                               tetrafluoro-1-
                               (trifluoromethyl)et
                               hyl]-furan.
                              1-Ethoxy-1,1,2,3,3,3-        380-34-7  CF3CHFCF2OCH2CH3                         23
                               hexafluoropropane.
                              Fluoro(methoxy)metha         460-22-0  CH3OCH2F                                 13
                               ne.
                              1,1,2,2-Tetrafluoro-       60598-17-6  CHF2CF2CH2OCH3                         0.49
                               3-methoxy-propane;
                               Methyl 2,2,3,3-
                               tetrafluoropropyl
                               ether.
                              1,1,2,2-Tetrafluoro-       37031-31-5  CH2FOCF2CF2H                            871
                               1-
                               (fluoromethoxy)etha
                               ne.
                              Difluoro(fluorometho         461-63-2  CH2FOCHF2                               617
                               xy)methane.
                              Fluoro(fluoromethoxy         462-51-1  CH2FOCH2F                               130
                               )methane.
----------------------------------------------------------------------------------------------------------------
                                              Fluorinated formates
----------------------------------------------------------------------------------------------------------------
                              Trifluoromethyl            85358-65-2  HCOOCF3                                 588
                               formate.
                              Perfluoroethyl            313064-40-3  HCOOCF2CF3                              580
                               formate.
                              1,2,2,2-                  481631-19-0  HCOOCHFCF3                              470
                               Tetrafluoroethyl
                               formate.
                              Perfluorobutyl            197218-56-7  HCOOCF2CF2CF2CF3                        392
                               formate.
                              Perfluoropropyl           271257-42-2  HCOOCF2CF2CF3                           376
                               formate.
                              1,1,1,3,3,3-              856766-70-6  HCOOCH(CF3)2                            333
                               Hexafluoropropan-2-
                               yl formate.
                              2,2,2-Trifluoroethyl       32042-38-9  HCOOCH2CF3                               33
                               formate.
                              3,3,3-                   1344118-09-7  HCOOCH2CH2CF3                            17
                               Trifluoropropyl
                               formate.
----------------------------------------------------------------------------------------------------------------
                                              Fluorinated acetates
----------------------------------------------------------------------------------------------------------------
                              Methyl 2,2,2-                431-47-0  CF3COOCH3                                52
                               trifluoroacetate.
                              1,1-Difluoroethyl        1344118-13-3  CF3COOCF2CH3                             31
                               2,2,2-
                               trifluoroacetate.
                              Difluoromethyl 2,2,2-       2024-86-4  CF3COOCHF2                               27
                               trifluoroacetate.
                              2,2,2-Trifluoroethyl         407-38-5  CF3COOCH2CF3                              7
                               2,2,2-
                               trifluoroacetate.
                              Methyl 2,2-                  433-53-4  HCF2COOCH3                                3
                               difluoroacetate.
                              Perfluoroethyl            343269-97-6  CH3COOCF2CF3                            2.1
                               acetate.
                              Trifluoromethyl            74123-20-9  CH3COOCF3                               2.0
                               acetate.
                              Perfluoropropyl          1344118-10-0  CH3COOCF2CF2CF3                         1.8
                               acetate.
                              Perfluorobutyl            209597-28-4  CH3COOCF2CF2CF2CF3                      1.6
                               acetate.
                              Ethyl 2,2,2-                 383-63-1  CF3COOCH2CH3                            1.3
                               trifluoroacetate.
----------------------------------------------------------------------------------------------------------------
                                               Carbonofluoridates
----------------------------------------------------------------------------------------------------------------
                              Methyl                      1538-06-3  FCOOCH3                                  95
                               carbonofluoridate.

[[Page 73757]]

 
                              1,1-Difluoroethyl        1344118-11-1  FCOOCF2CH3                               27
                               carbonofluoridate.
----------------------------------------------------------------------------------------------------------------
                             Fluorinated alcohols other than fluorotelomer alcohols
----------------------------------------------------------------------------------------------------------------
                              2,2,3,3,4,4,4-               375-01-9  C3F7CH2OH                                25
                               Heptafluorobutan-1-
                               ol.
                              2,2,2-                        75-89-8  CF3CH2OH                                 20
                               Trifluoroethanol.
                              2,2,3,4,4,4-                 382-31-0  CF3CHFCF2CH2OH                           17
                               Hexafluoro-1-
                               butanol.
                              2,2,3,3-Tetrafluoro-          76-37-9  CHF2CF2CH2OH                             13
                               1-propanol.
                              2,2-Difluoroethanol.         359-13-7  CHF2CH2OH                                 3
                              2-Fluoroethanol.....         371-62-0  CH2FCH2OH                               1.1
                              4,4,4-Trifluorobutan-        461-18-7  CF3(CH2)2CH2OH                         0.05
                               1-ol.
----------------------------------------------------------------------------------------------------------------
                                              Unsaturated compounds
----------------------------------------------------------------------------------------------------------------
                                                Unsaturated PFCs
----------------------------------------------------------------------------------------------------------------
PFC-1114; TFE...............  Tetrafluoroethylene          116-14-3  CF2=CF2; C2F4                         0.004
                               (TFE);
                               Perfluoroethene.
PFC-1216; Dyneon HFP........  Hexafluoropropylene          116-15-4  C3F6; CF3CF=CF2                        0.05
                               (HFP);
                               Perfluoropropene.
PFC C-1418..................  Perfluorocyclopenten         559-40-0  c-C5F8                                 1.97
                               e;
                               Octafluorocyclopent
                               ene.
                              Perfluorobut-2-ene..         360-89-4  CF3CF=CFCF3                            1.82
                              Perfluorobut-1-ene..         357-26-6  CF3CF2CF=CF2                           0.10
                              Perfluorobuta-1,3-           685-63-2  CF2=CFCF=CF2                          0.003
                               diene.
----------------------------------------------------------------------------------------------------------------
                                     Unsaturated HFCs and unsaturated HCFCs
----------------------------------------------------------------------------------------------------------------
HFC-1132a; VF2..............  Vinylidiene fluoride          75-38-7  C2H2F2, CF2=CH2                        0.04
HFC-1141; VF................  Vinyl fluoride......          75-02-5  C2H3F, CH2=CHF                         0.02
(E)-HFC-1225ye..............  (E)-1,2,3,3,3-              5595-10-8  CF3CF=CHF(E)                           0.06
                               Pentafluoroprop-1-
                               ene.
(Z)-HFC-1225ye..............  (Z)-1,2,3,3,3-              5528-43-8  CF3CF=CHF(Z)                           0.22
                               Pentafluoroprop-1-
                               ene.
Solstice 1233zd(E)..........  trans-1-Chloro-3,3,3-     102687-65-0  C3H2ClF3; CHCl=CHCF3                   1.34
                               trifluoroprop-1-ene.
HFC-1234yf; HFO-1234yf......  2,3,3,3-                     754-12-1  C3H2F4; CF3CF=CH2                      0.31
                               Tetrafluoroprop-1-
                               ene.
HFC-1234ze(E)...............  (E)-1,3,3,3-                1645-83-6  C3H2F4; trans-CF3CH=CHF                0.97
                               Tetrafluoroprop-1-
                               ene.
HFC-1234ze(Z)...............  (Z)-1,3,3,3-               29118-25-0  C3H2F4; cis-CF3CH=CHF;                 0.29
                               Tetrafluoroprop-1-                     CF3CH=CHF
                               ene.
HFC-1243zf; TFP.............  Trifluoro propene            677-21-4  C3H3F3, CF3CH=CH2                      0.12
                               (TFP); 3,3,3-
                               Trifluoroprop-1-ene.
(Z)-HFC-1336................  (Z)-1,1,1,4,4,4-             692-49-9  CF3CH=CHCF3(Z)                         1.58
                               Hexafluorobut-2-ene.
HFO-1345zfc.................  3,3,4,4,4-                   374-27-6  C2F5CH=CH2                             0.09
                               Pentafluorobut-1-
                               ene.
Capstone 42-U...............  Perfluorobutyl             19430-93-4  C6H3F9, CF3(CF2)3CH=CH2                0.16
                               ethene (42-U);
                               3,3,4,4,5,5,6,6,6-
                               Nonafluorohex-1-ene.
Capstone 62-U...............  Perfluorohexyl             25291-17-2  C8H3F13, CF3(CF2)5CH=CH2               0.11
                               ethene (62-U);
                               3,3,4,4,5,5,6,6,7,7
                               ,8,8,8-
                               Tridecafluorooct-1-
                               ene.
Capstone 82-U...............  Perfluorooctyl             21652-58-4  C10H3F17, CF3(CF2)7CH=CH2              0.09
                               ethene (82-U);
                               3,3,4,4,5,5,6,6,7,7
                               ,8,8,9,9,10,10,10-
                               Heptadecafluorodec-
                               1-ene.
----------------------------------------------------------------------------------------------------------------
                                         Unsaturated Halogenated Ethers
----------------------------------------------------------------------------------------------------------------
PMVE; HFE-216...............  Perfluoromethyl             1187-93-5  CF3OCF[ballot]=[ballot]CF2             0.17
                               vinyl ether (PMVE).
Fluoroxene..................  (2,2,2-                      406-90-6  CF3CH2OCH=CH2                          0.05
                               Trifluoroethoxy)eth
                               ene.
----------------------------------------------------------------------------------------------------------------
                                           Other short-lived compounds
----------------------------------------------------------------------------------------------------------------
                                               Fluorinated Ketones
----------------------------------------------------------------------------------------------------------------
Novec 1230..................  FK-5-1-12                    756-13-8  CF3CF2C(O)CF (CF3)2                     0.1
                               Perfluoroketone; FK-
                               5-1-12myy2;
                               Perfluoro(2-methyl-
                               3-pentanone).
----------------------------------------------------------------------------------------------------------------
                                              Fluorinated Aldehydes
----------------------------------------------------------------------------------------------------------------
                              3,3,3-Trifluoro-             460-40-2  CF3CH2CHO                              0.01
                               propanal.
----------------------------------------------------------------------------------------------------------------
                                             Fluorotelomer Alcohols
----------------------------------------------------------------------------------------------------------------
                              3,3,4,4,5,5,6,6,7,7,      185689-57-0  CF3(CF2)4CH2CH2OH                      0.43
                               7-
                               Undecafluoroheptan-
                               1-ol.
                              3,3,3-                      2240-88-2  CF3CH2CH2OH                            0.35
                               Trifluoropropan-1-
                               ol.
                              3,3,4,4,5,5,6,6,7,7,         755-02-2  CF3(CF2)6CH2CH2OH                      0.33
                               8,8,9,9,9-
                               Pentadecafluoronona
                               n-1-ol.
                              3,3,4,4,5,5,6,6,7,7,       87017-97-8  CF3(CF2)8CH2CH2OH                      0.19
                               8,8,9,9,10,10,11,11
                               ,11-
                               Nonadecafluoroundec
                               an-1-ol.
----------------------------------------------------------------------------------------------------------------
                                       Compounds with carbon-iodine bonds
----------------------------------------------------------------------------------------------------------------
                              Trifluoroiodomethane        2314-97-8  CF3I                                \a\ 0.4
----------------------------------------------------------------------------------------------------------------
                                                 Other compounds
----------------------------------------------------------------------------------------------------------------
Halon 1202..................  Dibromodifluorometha          75-61-6  CBr2F2                                  231
                               ne.
Halon-2311; Halothane.......  2-Bromo-2-chloro-            151-67-7  CHBrClCF3                                41
                               1,1,1-
                               trifluoroethane.
----------------------------------------------------------------------------------------------------------------
\a\ AR4.

[[Page 73758]]

    We are also adding 12 default GWPs to Table A-1 for fluorinated 
GHGs and HTFs that do not have peer-reviewed GWPs. As proposed, the 
default GWPs are based on the average GWPs of groups of chemically 
similar fluorinated GHGs because chemically similar fluorinated GHGs 
have similar atmospheric lifetimes and GWPs. The fluorinated GHG groups 
are: (1) Fully fluorinated GHGs and HTFs, (2) saturated 
hydrofluorocarbons (HFCs) with two or fewer carbon-hydrogen bonds, (3) 
saturated HFCs with three or more carbon-hydrogen bonds, (4) saturated 
hydrofluoroethers (HFEs) and hydrochlorofluoroethers (HCFEs) with one 
carbon-hydrogen bond, (5) saturated HFEs and HCFEs with two carbon-
hydrogen bonds, (6) saturated HFEs and HCFEs with three or more carbon-
hydrogen bonds, (7) fluorinated formates, (8) fluorinated acetates, 
carbonofluoridates, and fluorinated alcohols other than fluorotelomer 
alcohols, (9) unsaturated perfluorocarbons (PFCs), unsaturated HFCs, 
unsaturated hydrochlorofluorocarbons (HCFCs), unsaturated halogenated 
ethers, unsaturated halogenated esters, fluorinated aldehydes, and 
fluorinated ketones, (10) fluorotelomer alcohols, (11) fluorinated GHGs 
with carbon-iodine bonds, and (12) other fluorinated GHGs and HTFs. For 
each fluorinated GHG group, we are basing the default GWP on the 
average of the chemical-specific GWPs of compounds that belong to that 
group and that are either on Table A-1 already or are being added to 
Table A-1 under this rule. The fluorinated GHG groups and associated 
default GWPs are listed in Table 3 of this preamble. We are also 
finalizing a requirement that if a fluorinated GHG does not have a 
chemical-specific GWP in Table A-1 of this subpart, reporters must 
report the fluorinated GHG group of which that fluorinated GHG is a 
member. This will allow the EPA to verify that the calculation of 
carbon dioxide equivalent was conducted correctly.
    Finally, although we do not anticipate that finalizing the GWPs in 
this action will expand the set of facilities required to report under 
the GHGRP, we are including special provisions for facilities that 
become newly subject to one or more subparts of Part 98 due to the 
addition of GWPs, as proposed. Facilities or suppliers that become 
newly subject to a subpart due to the addition of GWPs are not required 
to report their 2014 emissions or supplies under that subpart, but they 
are required to report their 2015 emissions or supplies under that 
subpart by March 31, 2016. From January 1, 2015, to March 31, 2015, 
they may use best available monitoring methods (BAMM) for any parameter 
that cannot reasonably be measured according to the monitoring and QA/
QC requirements of the subpart, and they may submit a request to EPA to 
use BAMM beyond March 31. That request must be submitted by January 31, 
2015.

             Table 3--Default GWPs for Addition to Table A-1
------------------------------------------------------------------------
                  Fluorinated GHG group                   GWP (100-year)
------------------------------------------------------------------------
Fully fluorinated GHGs..................................          10,000
Saturated HFCs with two or fewer carbon-hydrogen bonds..           3,700
Saturated HFCs with three or more carbon-hydrogen bonds.             930
Saturated HFEs and HCFEs with one carbon-hydrogen bond..           5,700
Saturated HFEs and HCFEs with two carbon-hydrogen bonds.           2,600
Saturated HFEs and HCFEs with three or more carbon-                  270
 hydrogen bonds.........................................
Fluorinated formates....................................             350
Fluorinated acetates, carbonofluoridates, and                         30
 fluorinated alcohols other than fluorotelomer alcohols.
Unsaturated PFCs, unsaturated HFCs, unsaturated HCFCs,                 1
 unsaturated halogenated ethers, unsaturated halogenated
 esters, fluorinated aldehydes, and fluorinated ketones.
Fluorotelomer alcohols..................................               1
Fluorinated GHGs with carbon-iodine bond(s).............               1
Other fluorinated GHGs..................................            2000
------------------------------------------------------------------------

2. Changes From the Proposed Rule
    In the Proposed Rule to Add GWPs, we proposed to add 103 chemical-
specific GWPs and eight default GWPs to Table A-1. The proposed 
fluorinated GHG groups for which we proposed default GWPs were: (1) 
Fully fluorinated GHGs and HTFs, (2) saturated HFCs, (3) partially 
segregated saturated HFEs and HCFEs, (4) non-segregated saturated HFEs 
and HCFEs, (5) unsaturated PFCs, unsaturated HFCs, unsaturated HCFCs, 
unsaturated halogenated ethers, unsaturated halogenated esters, 
fluorinated aldehydes, and fluorinated ketones, (6) fluorotelomer 
alcohols, (7) fluorinated GHGs with carbon-iodine bonds, and (8) other 
GHGs and HTFs.
    The EPA is making minor changes to the proposed chemical-specific 
GWPs and is revising the fluorinated GHG groups and associated default 
GWPs based on comments. Regarding the chemical-specific GWPs, one 
commenter noted that two stereoisomers proposed for addition to Table 
A-1 had notation errors (switched E/Z notations); this has been 
corrected in the final Table A-1. The same commenter also observed that 
the proposed chemical-specific GWPs included some duplicate compounds 
with different GWPs. In the final Table A-1, we have removed five 
duplicate compounds. Two sets of duplicates resulted from our 
inadvertent proposed addition to Table A-1 of a GWP for a chemical that 
already had a GWP listed. These included two fluorinated alcohols with 
the CAS numbers 422-05-9 and 920-66-1. In these cases, we are retaining 
the previously listed GWPs, based on AR4. Three sets of duplicates came 
from AR5. These included two HFEs and one fluorinated alcohol with the 
CAS numbers 173350-37-3, 205367-61-9, and 375-01-9, respectively. In 
these cases, we used the average of the two GWPs, since both values had 
appeared in the peer-reviewed literature and had been listed by the AR5 
authors. With the removal of the five duplicate chemicals, a total of 
98 chemical-specific GWPs are being added to Table A-1.
    We are making three changes to the proposed fluorinated GHG groups 
and default GWPs. First, we are dividing the group of saturated HFCs 
into two groups based on the number of carbon-hydrogen bonds in the 
compound. Second, we are dividing the group of saturated HFEs and HCFEs 
into three groups based on the number of carbon-hydrogen bonds in the 
compound rather than two groups based on the position of the fluorine 
atoms in the compound

[[Page 73759]]

(segregated vs. partially segregated). Third, we are dividing the 
proposed ``other'' category into three groups: (1) Fluorinated 
acetates, carbonofluoridates, and fluorinated alcohols other than 
fluorotelomer alcohols, (2) fluorinated formates, and (3) other 
fluorinated GHGs and HTFs. We discussed these options (or similar ones, 
as described below) in the proposed rule and supporting analyses. We 
received one comment supporting the division of the ``other'' category 
into three categories and received no negative comments on the other 
options. After further consideration, we have concluded that the 
advantages identified in the proposed rule of these approaches, which 
are discussed further below, merit their adoption. These changes result 
in the creation of four additional fluorinated GHG groups and default 
GWPs, increasing the total number of default GWPs from eight to 12. As 
discussed further below, all of the changes are expected to increase 
the accuracy and precision of the default GWPs.
    As noted in the Proposed Rule to Add GWPs, the number of carbon-
hydrogen bonds in each saturated HFC and HFE (and HCFE) is 
significantly correlated (negatively) with the atmospheric lifetime and 
GWP of that compound. For the saturated HFEs, the number of carbon-
hydrogen bonds predicts the GWP more precisely than does the position 
of the fluorine atoms in the compound. Moreover, the number of carbon-
hydrogen bonds in each compound is likely to be known, facilitating the 
correct categorization and default GWP selection for each saturated HFC 
or HFE that does not have a chemical-specific GWP on Table A-1. Thus, 
grouping the compounds according to the number of carbon-hydrogen bonds 
overcomes the drawback we had identified in previous proposed rules 
\11\ to dividing up the saturated HFCs and HFEs (and HCFEs) by 
atmospheric lifetime, which is that the atmospheric lifetime of a 
particular saturated HFC or HFE may not be known. This enables us to 
establish groups of saturated HFCs and HFEs that have similar GWPs and 
to set considerably more precise default GWPs for these groups.
---------------------------------------------------------------------------

    \11\ In both the Proposed Amendments to Subpart L and the 
Proposed Rule to Add GWPs, we requested comment on the option of 
dividing the saturated HFCs and saturated HFEs into two or more 
groups each based on atmospheric lifetime or a structural 
characteristic (such as the number of carbon-hydrogen bonds) 
correlated with atmospheric lifetime (78 FR 69343 and 79 FR 44341). 
On the Proposed Amendments to Subpart L, we received a comment 
recommending that we divide the saturated HFEs into two groups based 
on a characteristic correlated with atmospheric lifetime and GWP, 
the position of the fluorine atom. We received no negative comments 
on the option of dividing the groups into more groups based on 
atmospheric lifetime.
---------------------------------------------------------------------------

    In the Proposed Rule to Add GWPs, we proposed to define the 
``other'' group as including both specific compound types (i.e., 
fluorinated acetates, carbonofluoridates, fluorinated alcohols other 
than fluorotelomer alcohols, fluorinated formates, and brominated 
compounds) and other compound types not otherwise included in any of 
the proposed fluorinated GHG groups. We proposed to set the default GWP 
for the group at 110 based on the average of the GWPs that had been 
measured for the specific compound types in the group. However, we 
requested comment on the option of setting a higher default (2000) to 
account for the possibility that newly synthesized compound types 
(which would be assigned the default for the ``other'' group) would 
have GWPs whose average was near the overall average for fluorinated 
GHGs. We noted that the disadvantage of this option was that it would 
apply an inappropriately high GWP to the specific compound types 
included in the group.
    In the supporting analysis for the proposed default GWPs, we 
further noted that the fluorinated formates had significantly higher 
GWPs than most of the other specific compound types in the ``other'' 
group. The average GWP for the formates was about 350, while that for 
most of the other identified compounds in the group was 20.\12\ (One 
other outlier in the group, dibromodifluoromethane (Halon 1202), has a 
GWP of 231.) Noting this difference, one commenter on the Proposed Rule 
to Add GWPs recommended separating the ``other'' group into three 
categories: Those with GWPs less than 20, those with GWPs between 20 
and 100, and those with GWPs over 100. In addition, two commenters on 
the Proposed Amendments to Subpart L, which had included a similar 
grouping and default GWP for ``other'' compounds, had suggested 
separating compound types with average GWPs near 10 or 20 into a 
separate group.
---------------------------------------------------------------------------

    \12\ This value rose to 30 after the removal of the duplicate 
compounds, three of which were fluorinated alcohols in the ``other'' 
group.
---------------------------------------------------------------------------

    In the final rule, we are removing all but one of the identified, 
specific compound types from the ``other'' category and are separating 
them into two groups, each of which is defined to contain specific 
compound types.\13\ This approach allows us to set default GWPs that 
better reflect the average GWPs of both of the new, smaller groups. A 
default GWP of 350 is established for fluorinated formates, while a 
default of 30 is established for fluorinated acetates, 
carbonofluoridates, and fluorinated alcohols other than fluorotelomer 
alcohols. The new default GWPs differ by more than an order of 
magnitude, considerably increasing their precision for their respective 
groups.
---------------------------------------------------------------------------

    \13\ The exception is the fluorinated GHGs that include bromine, 
which we are keeping in the ``Other fluorinated GHGs'' category, as 
proposed. Although we proposed to group (and are grouping) 
fluorinated GHGs that include chlorine with similar fluorinated GHGs 
that do not include chlorine (e.g., grouping the HCFEs with the 
HFEs), we did not propose to take this approach with bromine-
containing compounds, because their atmospheric behavior can be 
significantly different from that of similar fluorinated GHGs that 
do not contain bromine. For example, dibromodifluoromethane, which 
is a saturated compound consisting of carbon, fluorine, and bromine, 
is analogous to fully fluorinated GHGs, but it has a much shorter 
atmospheric lifetime and lower GWP than those compounds (231 vs. 
10,000). (Other saturated compounds consisting of carbon, fluorine, 
and bromine, which are not included on Table A-1 because they are 
regulated as ozone-depleting substances under 40 CFR part 82 and are 
therefore exempt from the definition of ``fluorinated GHG,'' have 
higher GWPs; but their average GWP of 2,400 is still significantly 
lower than the average for fully fluorinated GHGs.) 2-bromo-2-
chloro-1,1,1-trifluoroethane, which is a saturated compound 
consisting of carbon, fluorine, chlorine, bromine, and hydrogen, is 
analogous to HFCs that include two or fewer carbon-hydrogen bonds, 
but it has a much shorter atmospheric lifetime and lower GWP than 
those compounds (41 vs. 3700). (Dibromodifluoromethane and 2-bromo-
2-chloro-1,1,1-trifluoroethane are the only bromine-containing 
fluorinated GHGs with chemical-specific GWPs on Table A-1.)
---------------------------------------------------------------------------

    In addition, we are establishing a separate group for fluorinated 
GHGs that do not fall into any of the specific fluorinated GHG groups 
and are assigning it a default GWP of 2000. This ``catch-all'' group, 
which retains the title ``Other fluorinated GHGs and HTFs,'' includes 
types of fluorinated GHGs and HTFs whose GWPs have not been studied. 
Given the removal of most of the specific, relatively low-GWP compound 
types from this group, a default GWP of 2000 is likely to better 
estimate the GWPs of the compounds that remain in the group than the 
proposed default GWP of 110, which was based on the GWP values for a 
small, unrepresentative subset of fluorinated GHGs (i.e., acetates, 
fluoridates, fluorinated alcohols other than fluorotelomer alcohols, 
and formates). The default of 2000 is based on the average for all 
fluorinated GHGs. Where the GWPs of particular fluorinated GHG groups 
have not been published in the peer-reviewed literature, it is 
reasonable to assume they may fall anywhere on the continuum of GWPs 
measured for fluorinated GHGs in general. Based on

[[Page 73760]]

this principle, a default GWP of 2000 is currently used in subpart I 
and subpart L for, respectively, any fluorinated GHG whose GWP is not 
on Table A-1, and for any fluorinated GHG, other than a fully 
fluorinated GHG, whose GWP is not on Table A-1. While the default GWPs 
in subparts I and L are now being replaced by the default GWPs in Table 
A-1, which reflect more precise information regarding the atmospheric 
behavior of a number of fluorinated GHG groups, it is appropriate to 
retain the default of 2000 where more precise information is not 
available.
3. Summary of Comments and Responses Regarding Proposed Rule To Add 
GWPs
    Comment: All commenters who expressed an opinion on the addition of 
chemical-specific GWPs to Table A-1 supported the addition of most of 
the AR5 GWPs that the EPA proposed to add. (As discussed further below, 
two commenters objected to the addition of very-low-GWP compounds to 
Table A-1.) Several commenters noted that the IPCC Assessment Reports 
represent the most widely recognized source of peer-reviewed GWP 
values, and that the GWPs in AR5 are the most up-to-date and accurate 
of those published in these Reports.
    Two commenters advocated the adoption of AR5 GWPs for all of the 
compounds in Table A-1, noting that these represented the most recent 
and accurate GWP values available. One of these commenters asserted 
that the EPA's proposal to use AR5 in most but not all cases is 
``internally inconsistent, arbitrary, and irrational,'' stating that 
GHGRP data are the basis for many agency analyses and decisions and 
that use of the proposed GWP would render agency decisions less 
reliable. The commenter noted that the EPA could use other means to 
harmonize information with the UNFCCC reporting conventions.
    Two other commenters disagreed with the addition to Table A-1 of 
compounds with very low GWPs, stating that the proposal would make 
them, in one of the commenter's words, subject to ``regulation under 
the GHGRP and also potentially under the prevention of significant 
deterioration (PSD) and Title V permitting programs.'' The commenters 
argued that addition of a large number of low GWP materials to Table A-
1 could substantially increase the reporting burden on U.S. 
semiconductor manufacturers without significantly increasing the 
accuracy of facility reporting or the Inventory as a whole.
    Three of the commenters urged the EPA to modify the definition of 
fluorinated GHG to exclude fluorinated compounds with very low GWPs. 
They stated that these products were produced in low volumes and 
emitted in still lower volumes, meaning that their GWP-weighted 
emissions did not justify the significant administrative burden of 
reporting them.
    Response: The EPA agrees that the AR5 GWPs are the most up-to-date 
and accurate available. As proposed, we are adopting AR5 GWPs for 
compounds for which AR4 GWPs are not available but are retaining the 
AR4 GWPs where they are available. As established in the Revisions Rule 
and reiterated in the Proposed Rule to Add GWPs, this is to remain 
consistent with UNFCCC reporting, which requires the use of AR4 GWPs 
for the GHGs with GWPs listed in AR4, and also with other national and 
international GHG analyses, policies, and programs. (For more 
discussion of these analyses and programs, see the Revisions Rule at 78 
FR 71912-13). It is also consistent with the approach we took in the 
original Table A-1, which included GWPs from the SAR where they were 
available (consistent with UNFCCC requirements) but also included GWPs 
from AR4 for compounds for which SAR GWPs were not available.
    The benefits of using the same GWPs as other analyses, policies, 
and programs, particularly the Inventory of U.S. Greenhouse Gas 
Emissions and Sinks, are discussed at length in the Revisions Rule (78 
FR 71911-12). Briefly, they include facilitating more efficient review 
and comparison of data collected through the GHGRP and other U.S. 
climate programs, reducing the potential errors that may arise when 
comparing multiple data sets or converting GHG emissions or supply 
based on separate GWPs, and reducing the burden for reporters and 
agencies to keep track of separate GWPs when submitting information to 
these programs. In the Revisions Rule, we weighed these benefits 
against the increase in accuracy that would result from adopting more 
recent GWPs to better characterize national GHG emissions and inform 
EPA policies. We concluded that, where the choice is between an AR4 GWP 
and an AR5 GWP, the potential gain in accuracy does not justify the 
loss of consistency with UNFCCC reporting (and associated policy 
analysis) that would result.
    We are adding the GWPs of very-low-GWP fluorinated GHGs to Table A-
1 as proposed. It is important to note that this does not expand the 
set of fluorinated GHGs and HTFs that must be reported under the GHGRP 
because that is established by the definition of ``fluorinated GHG'' at 
40 CFR 98.6 (and, for subpart I, ``fluorinated HTF'' at 40 CFR 98.98), 
rather than by inclusion in Table A-1. As noted above and in the 
Proposed Rule to Add GWPs, semiconductor facilities, as well as other 
emitters and suppliers of fluorinated GHGs that do not have GWPs on 
Table A-1, are already required to report (and do report) emissions and 
supplies, respectively, of these GHGs and HTFs.
    Regarding the potential impact on permitting requirements of 
including very-low-GWP gases in Table A-1, including these gases is 
expected to have negligible impact on permitting requirements. As 
explained in the proposal to this rule, the potential impact of these 
proposed changes on permitting requirements is narrowed by the U.S. 
Supreme Court decision in Utility Air Regulatory Group v. EPA (No. 12-
1146), which found that greenhouse gases cannot be treated as an air 
pollutant for purposes of determining whether a source is a major 
source required to obtain a PSD or title V permit (79 FR 44344).
    As the EPA explained following the Supreme Court decision, the EPA 
will no longer require PSD permits at stationary sources if GHGs are 
the only pollutant (i) that the source emits or has the potential to 
emit above the major source thresholds, or (ii) for which there is a 
significant emissions increase and a significant net emissions increase 
from a modification, and the EPA will no longer require a source to 
obtain a title V permit solely because it emits or has the potential to 
emit GHGs above the major source thresholds.\14\ Thus, the EPA will 
only apply the permitting requirements to which the commenters 
generally refer to GHGs at new and modified sources that trigger 
permitting requirements on the basis of their emissions of air 
pollutants other than GHGs (also known as ``anyway sources''). 
Accordingly, PSD's best available control technology (BACT) requirement 
will still apply to GHGs emitted at or above certain thresholds by 
anyway sources, and title V permits for anyway sources will need to 
incorporate and assure compliance with those BACT limits that remain

[[Page 73761]]

applicable requirements under a PSD permit issued to the source.\15\
---------------------------------------------------------------------------

    \14\ Memorandum for Janet G. McCabe and Cynthia Giles to 
Regional Administrators, Next Steps and Preliminary Views on the 
Application of Clean Air Act Permitting Programs to Greenhouse Gases 
Following the Supreme Court's Decision in Utility Air Regulatory 
Group v. Environmental Protection Agency (July 24, 2014) (``July 24 
Memo''), at 2, available at http://www.epa.gov/nsr/documents/20140724memo.pdf.
    \15\ July 24 Memo at 3-5.
---------------------------------------------------------------------------

    The revised GWP values will apply to future permitting actions when 
determining whether a source required to obtain a PSD permit based on 
emissions of pollutants other than GHGs has emissions of GHGs that 
exceed the threshold at which BACT applies to emissions of greenhouse 
gases from such sources. While some refinements to EPA's regulations 
may be forthcoming based on the Supreme Court decision described above, 
under regulations that remain applicable at this time, the EPA has 
defined greenhouse gases for permitting purposes as the aggregate group 
of the following six greenhouse gases: carbon dioxide, nitrous oxide, 
methane, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride. 
See, e.g., 40 CFR 51.166(b)(48)(i). The amount of such emissions is 
quantified for permitting purposes by multiplying the mass of each of 
these six gases by the associated GWP in Table A-1. 40 CFR 
51.166(b)(48)(ii). Any changes to GWP values for substances that are 
among the six gases listed above will become a part of the calculation 
of CO2e for permitting purposes. In this context, because 
the revised GWPs are so low and the magnitude of their emissions in 
tons of chemical is not expected to be large, the revisions to table A-
1 in this rule are not expected to have a significant impact on 
application of the BACT requirement to GHGs at sources that trigger the 
requirement to obtain a permit based on emission of other 
pollutants.\16\
---------------------------------------------------------------------------

    \16\ The addition of very-low-GWP gases in Table A-1 that are 
not among the six listed above does not result in these gases 
becoming subject to permitting requirements under the Clean Air Act. 
The EPA had made clear that regulations that require monitoring and 
reporting of pollutant emissions do not make a pollutant subject to 
regulation. See 75 FR 17004, and 40 CFR 52.21(b)(49).
---------------------------------------------------------------------------

    Contrary to the generalized concerns of the commenters, we believe 
that listing of very-low-GWP gases in Table A-1 will facilitate 
informed decision-making regarding the relative climate impacts of 
these and other fluorinated GHGs in industrial, commercial, and 
household use, while having only a negligible permitting impact. Based 
on that information, the EPA may evaluate in the future whether it 
would be appropriate to modify the definition of fluorinated greenhouse 
gas, which is outside the scope of this rulemaking.
    Comment: Three commenters supported the proposed fluorinated GHG 
groups and default GWPs for fluorinated GHGs without peer-reviewed 
GWPs. One of the commenters noted that the proposed groups and GWPs 
reflected comments submitted on the Proposed Amendments to Subpart L, 
and two of the commenters agreed that default GWPs based on fluorinated 
GHG groups, though possibly less than fully accurate, would lead to 
more accurate estimates of atmospheric impacts than would a GWP of 
zero.
    Two commenters disagreed with the proposed fluorinated GHG groups 
and default GWPs. These commenters stated that adding default GWPs to 
Table A-1 could have permitting implications and that GWPs that have 
not been peer-reviewed are more likely to change significantly, which 
may have compliance implications. One of the commenters also asserted 
that the fluorinated GHG groups were very broad, and that companies may 
need to exert considerable effort to determine which of the materials 
used at their facilities fall into which group and therefore trigger 
regulatory requirements. The other commenter argued that establishing 
default GWPs was inconsistent with the practice of the IPCC and 
therefore diverged from accepted international practice. As a result, 
U.S. facilities would be subject to a different standard than 
competitors elsewhere. This commenter also noted that default GWPs have 
not been published in a peer-reviewed scientific journal, which the EPA 
acknowledged ``helps to ensure that the data and methods used to 
evaluate the GWPs are consistent with current scientific good practice 
and thereby helps to ensure that the resulting GWPs are accurate.''
    Response: As proposed, we are adding default GWPs to Table A-1. 
These default GWPs will be applied to fluorinated GHGs that do not have 
chemical-specific GWPs on Table A-1 (i.e., fluorinated GHGs that did 
not have chemical-specific peer-reviewed GWPs available in time for 
this rulemaking). This is to ensure that the atmospheric impacts of all 
fluorinated GHGs are accounted for in GHGRP calculations and reporting.
    The 12 default GWPs have been developed and will be applied based 
on fluorinated GHG group. For each fluorinated GHG group, we are basing 
the default GWP on the average of the peer-reviewed, chemical-specific 
GWPs of compounds that belong to that group and that are either on 
Table A-1 or are being added to Table A-1 under this rule. As noted by 
several commenters and by us in the proposed rule, the default GWPs are 
not expected to be as precise as chemical-specific GWPs, because they 
are based on averages for groups that exhibit some variation in their 
GWPs (although the groups have been selected to minimize this 
variation). Nevertheless, for each fluorinated GHG group, the default 
GWP is expected to be a non-biased predictor of the GWPs of fluorinated 
GHGs that belong to that group, including fluorinated GHGs that have 
not had chemical-specific GWPs published in the peer-reviewed 
literature. Importantly, the default GWP is expected to be a better 
predictor (and in some cases, a far better predictor) of such GWPs than 
zero, which is always an underestimate but is the GWP that has been 
used to date when no chemical-specific GWP was on Table A-1. Thus, 
adding the default GWPs to Table A-1 will significantly increase the 
accuracy of the CO2e emissions that are calculated and 
reported under the GHGRP.
    As noted in the proposal, the default GWPs will also increase the 
stability and predictability of calculated CO2e emissions 
from facilities. As chemical-specific GWPs for GHGs are developed, peer 
reviewed, and added to Table A-1, the change from each default GWP to 
the chemical-specific GWP is likely to be smaller than the change from 
zero to the chemical-specific GWP. This will significantly reduce the 
magnitude of any future revisions to or inconsistencies in the time 
series of CO2e emissions. At the same time, having a default 
GWP for each GHG may allow the EPA to update Table A-1 less frequently 
because the default would reduce the error in CO2e estimates 
that presently arises from not having a chemical-specific GWP for that 
GHG on Table A-1.
    Furthermore, we do not agree that adding chemical-specific GWPs and 
default GWPs at this time, or any future action to change these GWP 
values, will have implications for stationary source permitting that 
would justify not proceeding with this final action. The potential 
implications for permitting fall into two main categories. The first 
relates to the prospective triggering of permitting requirements at a 
source based on calculations of CO2e using GWP values in 
regulations. The second relates to compliance with emissions limits in 
previously issued permits that may have limits expressed in the form of 
CO2e calculated using the GWP values.
    As a general matter and as explained above, the potential impact of 
these changes to GWP values on the PSD and title V permit requirements 
that might apply to sources based on the GWP values has been narrowed 
by the U.S. Supreme Court decision in Utility Air

[[Page 73762]]

Regulatory Group v. EPA (No. 12-1146). Under that decision, sources 
cannot become subject to the requirement to obtain a permit as a major 
source under these permitting programs based solely on their emissions 
of GHGs, thereby limiting implications of changes to GWP values in this 
context. As also discussed above, the revisions to Table A-1 are 
otherwise not expected to have a significant impact on application of 
the PSD BACT requirement to GHGs at sources that continue to require a 
PSD permit based on emissions of other pollutants.
    With respect to permits that have already been issued, as explained 
in a prior rulemaking relating to revisions to GWP values in Table A-1, 
the EPA does not expect the revised GWPs to be applied retroactively to 
prior permitting determinations and does not expect that previously 
approved PSD or title V permits would be reopened solely based on 
application of the revised GWPs in Table A-1 to prior years' emissions 
(78 FR 71916). As the EPA previously explained, compliance with GHG 
permit limits in existing, final PSD permits ``may be determined based 
on the GWPs that were effect at the time of permit issuance (even if 
the permit does not specify the applicable GWP value)'' (78 FR 71916). 
Likewise, with regard to determinations of whether PSD permitting 
requirements applied to a source previously permitted, the EPA has 
already explained that ``GWP revisions should not affect past 
permitting actions for a source that has obtained a final PSD permit 
before these revisions to Part 98 become effective, regardless of 
whether or not that PSD permit included GHG limits'' (78 FR 71916). 
Should sources have specific questions regarding application of the new 
GWP values to previously approved PSD or title V permits, they should 
contact their permitting authority or their respective EPA regional 
office.
    While there should be little to no impact on both categories of 
permitting requirements based on this final action to add chemical-
specific GWPs and default GWPs for the reasons explained above, sources 
are encouraged to talk to the appropriate permitting authority to the 
extent that questions arise regarding specific permitting requirements 
that apply or might apply to their GHG emissions.
    One commenter argued that establishing default GWPs was 
inconsistent with the practice of the IPCC and therefore diverged from 
accepted international practice, subjecting U.S. facilities to a 
different standard than competitors in the World Semiconductor Council 
(WSC) and elsewhere. As noted above, we believe that consistency 
between the GHGRP and other national and international policies and 
programs is important for the GHGs that are included in AR4; for these 
GHGs, the improvement in accuracy that would be associated with the use 
of more recent GWPs (e.g., from the Comprehensive Review or from AR5) 
does not justify the loss of consistency with UNFCCC reporting that 
would result. However, for the GHGs that are not included in AR4, the 
improvement in accuracy associated with the assignment of default GWPs 
rather than a GWP of zero does not result in a loss of consistency with 
UNFCCC reporting, since the UNFCCC does not require the use of AR4 GWPs 
for reporting emissions of these GHGs. In fact, the use of default GWPs 
facilitates compliance with the UNFCCC Reporting Guidelines, which 
``strongly encourage'' Annex I Parties ``to also report emissions and 
removals of additional GHGs'' (i.e., GHGs whose GWPs are not included 
in AR4). To the extent that other consistency issues arise, the EPA and 
GHGRP stakeholders such as the WSC can make adjustments to GHGRP or 
other data sets to ensure comparability between those sets (e.g., to 
measure progress toward WSC goals).
    Regarding the comment that it would be difficult to assign 
fluorinated GHGs to the correct fluorinated GHG group (and therefore to 
select the correct default GWP), we have deliberately defined the 
groups based on easily ascertained criteria related to chemical 
structure. To further facilitate selection of the correct default GWP, 
we intend to automatically assign it through our data system for 
commonly used fluorinated GHGs and HTFs that are reported under the 
GHGRP, such as fully fluorinated HTFs used in electronics 
manufacturing. Thus, we do not expect that selection of the correct 
default GWP will impose a significant burden on reporting facilities.

B. Amendments to Subpart L Reporting Requirements

1. Summary of Final Amendments to Subpart L Reporting Requirements
    As proposed, the EPA is permanently amending the subpart L 
reporting requirements to require reporting at a more aggregated level 
than in the 2010 subpart L rule. Specifically, we are requiring owners 
and operators of facilities producing fluorinated gases to report (1) 
emissions by fluorinated GHG group (chemical type) at the process level 
for each generically defined production or transformation process, and 
(2) emissions by chemical at the facility level for certain fluorinated 
GHG emissions. These changes apply only to emissions from production 
and transformation processes; emissions from venting of container heels 
and destruction of previously produced fluorinated GHGs must be 
reported by chemical and by process as required by the 2010 Subpart L 
Rule.
    Fluorinated GHG emissions from production and transformation 
processes must be reported by chemical at the facility level when (a) 
the fluorinated GHG is emitted in quantities above 1,000 metric tons 
CO2e (mtCO2e) and the facility produces more than 
one fluorinated gas product,\17\ or (b) for facilities that produce 
only one fluorinated gas product, the fluorinated GHG emitted is a 
major fluorinated GHG constituent of a fluorinated gas product and the 
fluorinated gas product is sold or otherwise transferred to another 
person. (Other fluorinated GHG emissions from production and 
transformation processes at the facility level will be reported by 
chemical type.) Where the emission factor or emission calculation 
factor approaches are used, facilities are required to further 
disaggregate process emissions by emission type (i.e., into vented vs. 
leaked emissions). In addition to the changes above, we are replacing 
the requirements to report process-specific emission factors, activity 
data, and destruction efficiencies with a requirement to identify, as a 
range, the level by which the emissions of each process are reduced or 
controlled (e.g., by destruction devices). We are also removing the 
requirement that facilities report the following data elements: the 
contents, locations, and functions of the streams analyzed under the 
scoping speciation (40 CFR 98.126(a)(3) and (a)(4)).
---------------------------------------------------------------------------

    \17\ We are defining fluorinated gas product as the product of 
the process, including isolated intermediates.
---------------------------------------------------------------------------

    All of these changes (as well as the revised default GWPs and 
fluorinated GHG groups, discussed in Sections II.A and II.B.5 of this 
preamble) will apply to (previously deferred) reporting for RYs 2011, 
2012, and 2013 (i.e., reporting of emissions that occurred in 2011, 
2012, and 2013), as well as to reporting for emissions that occur in 
2014 and later years.
    To consolidate all of the revisions to subpart L that are related 
to disclosure concerns, the EPA also is finalizing in this action the 
alternative verification approach that was proposed for subpart L in 
the Proposed Inputs Rule. (In the Proposed Amendments to Subpart L, we

[[Page 73763]]

discussed the relationship between those amendments and the amendments 
that were proposed in the Proposed Inputs Rule, and we made available a 
version of the subpart L regulatory text as it would be amended by both 
actions (78 FR 69340).) The alternative verification approach for 
subpart L is the same as that in the Final Inputs Rule, except that the 
requirement for subpart L reporters to use IVT will apply to RY 2015 
and later reporting years. This is necessary to allow the EPA to 
develop a subpart L IVT module that integrates the subpart L reporting 
requirements being finalized in this action.
    As noted in the Proposed Inputs Rule, the inputs verification tool 
is designed to be used concurrently with annual reporting by 
facilities. While additional verification could be conducted on past 
years' data if the inputs verification tool were used for those years, 
for the reasons stated in the Proposed Inputs Rule, the EPA has 
determined that the added benefit does not outweigh the burden that 
would be required for facilities to use the inputs verification tool 
for years that will already have been reported in full by the time the 
tool is available for use. For further details, please see the Proposed 
Inputs Rule (78 FR 56004). As noted above, facilities will be 
submitting full subpart L reports for Reporting Years 2011, 2012, and 
2013 in calendar year 2015.
    As described in the Proposed Inputs Rule, the EPA is currently 
using a two-step verification approach for the GHGRP:
     Initial automated review of reported data, using an 
electronic data quality assurance program built into the data system, 
for use by reporters and the EPA to help assure the completeness and 
accuracy of data.
     Based on the initial review results, follow up with 
facilities regarding potential errors, discrepancies, or questions, 
including on-site audits.
    Until the Inputs Verification Tool is in place, the EPA intends to 
continue to verify subpart L emissions using this approach. The EPA may 
also perform manual checks. More specifically, the EPA intends to look 
at expected emission levels and patterns, internal consistency, 
consistency with emissions reported previously by the same facility, 
consistency with emissions reported by other fluorinated gas production 
facilities, and report completeness.
    We are also finalizing revisions to Table A-7 by removing all 
subpart L inputs to equations from Table A-7. With the exception of the 
data elements in 98.126(b)(10), (11), and (12), which were addressed in 
the Proposed Amendments to Subpart L, the Proposed Inputs Rule proposed 
to remove all subpart L inputs to equations from Table A-7. We are 
finalizing these provisions as proposed. With respect to the data 
elements in 98.126(b)(10), (11), and (12), these data elements were 
proposed to be removed from the subpart L provisions in the Proposed 
Amendments to Subpart L; however, we inadvertently did not make the 
corresponding changes in Table A-7. As a result, consistent with the 
Proposed Amendments to Subpart L, we are making the corresponding 
change in Table A-7 and removing the data elements in 98.126(b)(10), 
(11), and (12) from Table A-7 in this action.
2. Changes From the Proposed Rules
a. Changes to Provisions Proposed in the Proposed Amendments to Subpart 
L
    The EPA is making minor changes to the reporting requirements 
proposed in the Proposed Amendments to Subpart L to clarify and 
streamline them. First, we are not finalizing two proposed reporting 
provisions that would be redundant with two existing reporting 
provisions. Specifically, we are not finalizing the proposed paragraphs 
98.126(a)(6)(i) and (ii), which would have required reporting of 
emissions from destruction of previously produced fluorinated GHGs and 
emissions of container heels, because paragraphs 98.126(g) and (h) 
already require this reporting. However, we are slightly revising 
98.126(h) to require reporting of aggregate emissions of each 
fluorinated GHG across container types and sizes (rather than for each 
container type and size) as would have been required by the proposed 
98.126(a)(6)(i). Reporting of emissions by container type and size is 
no longer useful for verification given the removal of the requirement 
to report heel factors by container type and size. Second, we are 
clarifying in several places that the requirements to report facility-
level emissions by chemical or by fluorinated GHG group apply only to 
emissions from production and transformation processes. Because 
emissions from container venting and destruction of previously produced 
fluorinated GHGs are already required to be reported by chemical from 
each of these activities, it is not necessary to report them again at 
the facility level (except as part of the total CO2e 
emissions for the facility reported under 98.3(c)(4)(i)).
    Third, the EPA is removing 98.126(f)(5), the requirement to submit 
a revised destruction device testing report when changes to the 
destruction device would be expected to affect the destruction 
efficiency (DE). This change is necessary for consistency with our 
removal of the requirement to report the original DE at 98.126(f)(1). 
As discussed in the Proposed Amendments to Subpart L, we identified 
potential disclosure concerns associated with reporting of exact 
destruction efficiencies at the process level under subpart L. These 
concerns apply to revised destruction efficiencies as well as to 
original destruction efficiencies. To ensure that we continue to 
receive useful information on the level of control for each process, we 
are finalizing our proposal to replace the requirement to report exact 
destruction efficiencies with the requirement to report, as a range, 
the effective DE of each process (78 FR 69348-49).
    In addition to these changes, we have revised the proposed 
fluorinated GHG groups and default GWPs in response to comments. These 
changes are discussed below in Section II.B.2.b.
b. Changes to Provisions Proposed Relative to the Alternative 
Verification Approach
    As previously mentioned, the Proposed Inputs Rule included an 
alternative verification approach and associated reporting and 
recordkeeping requirements. This section discusses the changes since 
proposal.
    First, we are not finalizing the entry of the inputs to the mass-
balance equations into IVT as proposed in the Proposed Inputs rule. 
Shortly after issuing the Proposed Inputs Rule, we proposed to remove 
the mass-balance approach altogether in the Proposed Amendments to 
Subpart L for the reasons provided in the proposal. As discussed in 
Section II.C of this preamble, we are finalizing the removal of the 
mass-balance method through this action. Because the mass-balance 
equations are no longer in subpart L, we are not requiring the entry of 
the inputs to those equations into IVT.
    Second, we are requiring entry of chemical-specific emissions from 
leaks for each process into IVT. In the Proposed Amendments to Subpart 
L, we proposed to replace the reporting of this data element with the 
reporting of CO2e emissions by fluorinated GHG group from 
leaks for each process, which we believe will provide us adequate 
information for policy purposes while addressing the potential 
disclosure concerns associated with the reporting of chemical-specific 
emissions from process leaks. In our effort to consolidate all subpart 
L proposed revisions, including IVT, into one final action, we note 
that entry of chemical-specific emissions from leaks into IVT

[[Page 73764]]

will facilitate verification of the replacement data reporting element. 
Specifically, entry into IVT of chemical-specific emissions from leaks 
for each process will allow us to verify (1) the reported 
CO2e emissions by fluorinated GHG group from leaks for each 
process, and (2) the emissions reported either by chemical or by 
fluorinated GHG group (in CO2e) at the facility level. 
Emissions from leaks are included in facility totals in either 
chemical-specific or CO2e terms, depending on the magnitude 
of the emissions of that chemical at the facility level. They are 
therefore a necessary link between the emissions from vents calculated 
by Equations L-21, L-22, L-26, and L-27, which the EPA proposed to 
verify using IVT, and the emissions that will actually be reported at 
the facility level under these amendments. In light of the above, we 
are requiring in this final rule that chemical-specific emissions from 
leaks for each process be entered into IVT, along with certain inputs 
to emission equations, as part of the alternative verification 
approach.
    Third, for clarity, we are adding an explicit requirement to report 
the generically identified process for which missing data are reported 
under 40 CFR 98.126(d). This is in addition to the revisions to 
98.126(d) that were proposed in the Inputs Rule, which we are also 
finalizing in today's action. Because emissions from fluorinated gas 
production are monitored and calculated at the process level, 
identification of the process is within the subpart A requirement to 
report ``each data element for which a missing data procedure was used 
according to the procedures of an applicable subpart'' at 98.3(c)(8). 
However, to the extent there is any potential ambiguity, the addition 
clarifies the requirement to report the generically identified process.
    Finally, we are not finalizing our proposal to enter the data 
elements in Equations L-20, L-23, and L-25 into IVT. These data 
elements, which are not required to be reported to EPA, were 
inadvertently included in the group of subpart L inputs to emission 
equations to be entered into IVT in the Proposed Inputs Rule. Equation 
L-20 is used to calculate emission factors from multiple individual 
emission factor measurements; Equation L-23 is used to calculate 
adjusted process-vent-specific emission factors in the event of a 
process change; and Equation L-25 is used to calculate emission 
calculation factors based on emissions calculated using chemical 
engineering principles or engineering assessments. These factors are 
required to be measured and calculated only once every ten years or if 
there is a change to the process. The calculations used to develop the 
emission factors and emission calculation factors are important for 
ensuring that facilities have correctly complied with subpart L's 
requirements, but they are not essential for verifying emission 
calculations every year. Further, individual emission factor 
measurements are required to be included in the emissions test report 
under 40 CFR 98.124(c)(5), which is kept as a record under 40 CFR 
127(d)(4). Similarly, emission factor calculations are required to be 
kept as records under 40 CFR 127(d)(5). For the reasons stated above, 
we are not finalizing the entry of the data elements in Equations L-20, 
L-23, and L-25 into IVT.
3. Summary of Comments and Responses on Proposed Amendments to 
Reporting Requirements
    Comment: Three commenters supported the proposed replacement of 
chemical-specific reporting at the process level with two levels of 
more aggregated reporting. The commenters noted that grouping of 
classes of compounds will aid in protecting information about which 
they have disclosure concerns. Two of the commenters specifically 
agreed with the proposal that facilities be required to report 
emissions of fluorinated GHGs by chemical when emissions of that 
fluorinated GHG exceed 1,000 mtCO2e for the facility as a 
whole. An additional commenter noted that compound-specific reporting 
at the facility level is sufficient to support efforts to identify and 
resolve differences between ``bottom-up'' emission estimates based on 
inventory methods and ``top-down'' emission estimates based on changing 
atmospheric concentrations. Two commenters agreed that a facility 
producing only one fluorinated gas should report emissions only by 
fluorinated GHG group, unless the emissions consist of a major 
fluorinated GHG constituent of the fluorinated gas product and that 
product is sold or transferred to another facility.
    One commenter objected to the proposal to replace some chemical-
specific reporting with aggregate reporting. The commenter stated that 
the proposal to require less information and ``generic, melded 
information''--instead of process-specific and/or chemical specific 
information--would undermine the EPA's mission to protect the health 
and safety of the American public and the environment and the public's 
ability to monitor the use of HFCs nationwide. The commenter asserted 
that the EPA's proposal would materially reduce the amount and quality 
of information available to inform future policy and that the proposal 
would require significantly fewer facilities to submit data compared to 
the original rule. In several cases, the commenter referred to 
drawbacks that the EPA identified in the proposed rule for alternatives 
to the preferred approach. The commenter suggested that certain 
facilities that meet specified criteria could report their fluorinated 
GHG emissions in a less detailed manner. The commenter further 
suggested that one of these criteria could be whether or not the 
facility is producing a unique product as opposed to a widely produced 
HFC.
    Response: As discussed above, we are finalizing the amendments to 
the reporting requirements as proposed. We agree with several of the 
commenters that the amendments will address disclosure concerns while 
allowing the EPA to collect the data necessary to inform the 
development of future GHG policies and programs. This includes data on 
the magnitudes (in CO2e), GWPs, atmospheric lifetimes, and 
sources (vents or leaks) of emissions at the process level and data on 
the exact chemical identities and magnitudes of significant emissions 
(those that exceed the 1,000 mtCO2e threshold) at the 
facility level. As discussed in the preamble to the proposed rule, 
process-specific emissions information allows the EPA to identify 
processes with high potential for emission reductions as well as 
measures to achieve those reductions. Chemical-specific information 
allows the EPA, as well as the public and the international community, 
to better understand the atmospheric impacts of U.S. emissions, to 
compare U.S. emissions to atmospheric measurements, and, if 
inconsistencies between emissions and atmospheric measurements are 
found, to better understand the magnitudes and causes of those 
inconsistencies. We have concluded that the data that will be collected 
under this final rule will enable us to meet these objectives.
    Contrary to the statements of one of the commenters, the amendments 
will generally continue to require reporting of process-specific as 
well as chemical-specific information. Under the final rule, facilities 
making more than one fluorinated gas product must report their process-
specific emissions by fluorinated GHG group in CO2e, and 
they must identify their processes by process type and subtype and a 
generic identifier that will remain the same from year to year. 
Together, these requirements will enable the EPA and the public to 
identify processes that are reducing emissions or that have

[[Page 73765]]

potential to reduce emissions significantly and/or cost-effectively 
(e.g., because the emissions are large and/or belong to a fluorinated 
GHG group with a relatively high GWP). (The requirement to report the 
effective DE range applied to each process will further inform such 
analyses.) In addition, facilities making more than one fluorinated gas 
product are required to report their facility-level emissions of 
fluorinated GHGs by chemical when the emissions of that chemical exceed 
1,000 mtCO2e. This will enable the EPA to identify 
fluorinated GHGs (including individual HFCs) with high emissions and to 
compare emissions to atmospheric measurements.
    Facilities making only one fluorinated gas product are required to 
report their facility-wide emissions by fluorinated GHG group in 
CO2e, except they must report the emissions by fluorinated 
GHG when that fluorinated GHG is a major fluorinated GHG constituent of 
a fluorinated gas product and the fluorinated gas product is sold or 
otherwise transferred to another person. For facilities making only one 
fluorinated gas product, the facility emissions are likely to result 
from relatively few processes (and possibly only one), meaning that 
even in this case, the reported emissions are likely to be close to 
process-specific emissions. (We believe that only one or two facilities 
are likely to make only one fluorinated gas product, which includes 
intermediates that are fluorinated gases.)
    Also contrary to the statements of one of the commenters, these 
amendments will not require fewer facilities to submit data. The 
amendments do not affect the applicability of subpart L; all facilities 
that have reported to date and that would have reported under the 2010 
Subpart L final rule if unchanged going forward will report under these 
amendments.
    Because we have concluded that the data to be collected under this 
rule are sufficient to inform the development of future GHG policies 
and programs with respect to emissions from the production of all 
fluorinated gases, we are not pursuing an approach that would impose 
different reporting requirements for facilities or processes that 
produce ``unique'' vs. ``commonly made'' fluorinated gases. In addition 
to being unnecessary, that approach would require the development and 
application of criteria to determine which products or processes are 
``unique,'' which would impose an administrative burden both on the 
Agency and on the regulated community, and which would likely further 
delay process- and chemical-specific reporting from fluorinated gas 
producers. One of the challenges of developing and applying such 
criteria would be that unique processes are sometimes used to produce 
even commonly made fluorinated GHGs, including commonly made HFCs.
    We agree with one of the commenters that several of the 
alternatives to the approach being finalized in today's rule, such as 
not distinguishing between transformation processes that do and do not 
transform fluorinated GHGs produced at another facility, would have 
reduced the usefulness of the data reported to the EPA. We did not 
receive any comments supporting these alternatives and we are not 
adopting them in today's final rule.
    Comment: Two commenters stated that they did not anticipate that 
there would be export control limitations in complying with the 
proposed reporting requirements. However, they stated that in future 
reporting years, facilities would be obligated to comply with export 
control requirements in the event that any portion of the information 
reported was subject to export control regulations. One of these 
commenters suggested that the EPA either ``use its enforcement 
discretion and determine appropriately that the company could not 
comply with the GHGRP requirements'' or provide a ``CBI Petition 
Process'' to ``address those very infrequent occasions where 
confidentiality/export control issues are a concern and could not have 
been reasonably anticipated at the time of comment on the rule.'' The 
other commenter suggested that the EPA provide exemptions for export 
control information where confidentiality issues were not reasonably 
understood at the time of rule promulgation.
    Response: We are not establishing a petition or exemption process 
under which a subpart L reporter could withhold reporting on the theory 
that reporting would disclose sensitive information. Based on the 
record for this rulemaking, including several years of discussion with 
the industry, extensive analysis by the EPA, and the comments submitted 
on the proposed rule, we believe that the amendments to the subpart L 
reporting requirements being promulgated today adequately address the 
disclosure concerns raised by the industry. We expect that the 
likelihood that an unanticipated disclosure concern would arise is 
quite low, and we have concluded that this possibility does not warrant 
the administrative burden associated with the development of a petition 
process. Moreover, due to the detailed information required to be 
reported, a petition process could cause long delays, and potential 
confusion, in the release of non-confidential data. Should a disclosure 
concern arise, we encourage reporters to bring it to our attention 
expeditiously so that we can consider it.
    Comment: Two commenters supported the proposed threshold of 1,000 
mtCO2e at the facility level for reporting emissions by 
chemical rather than by chemical group. Both commenters noted that this 
would reduce the number of speciated fluorinated GHGs that would be 
identified, thereby reducing the chemical-specific information 
potentially available to competitors. One commenter stated that, from a 
verification perspective, it would make sense to set the threshold as a 
percentage of total national production of the compound or of facility-
wide emissions.
    One commenter agreed that a threshold is ``one way that true CBI 
concerns could be addressed'' and that the threshold should be set in 
CO2e; however, the commenter considered 1,000 
mtCO2e to be too high and asserted that the proposed 
regulations and comments provided no basis for this threshold. The 
commenter stated facilities that would like to protect disclosure of 
confidential catalysts or additives should provide an argument based on 
actual production practices that justify such a high threshold, and 
suggested that a threshold of 100 mtCO2e may be protective.
    Response: We are finalizing the 1,000 mtCO2e threshold 
for chemical-specific reporting as proposed. As noted in the proposed 
rule, we proposed the 1,000 mtCO2e threshold based on 
information from a fluorinated gas producer indicating that the vast 
majority of its CO2e emissions consist of fluorinated GHGs 
that are emitted in quantities of one ton or more from the facility as 
a whole. Using a GWP of 1,000, which is relatively low for fluorinated 
GHGs in general, this equates to 1,000 mtCO2e. (Note that 
using a higher GWP would result in a higher CO2e threshold 
(e.g., 10,000 mtCO2e for fluorinated GHGs that have a GWP of 
10,000).) The producer also noted that the fluorinated GHGs that are 
emitted in quantities of one ton or more make up a small fraction of 
the number of individual fluorinated GHGs emitted. Thus, setting the 
threshold for chemical-specific reporting at 1,000 mtCO2e is 
expected to result in the reporting of the majority of CO2e 
emissions in chemical-specific terms, while avoiding the disclosure of 
detailed process information.
    We agree with two of the commenters that it is important to 
consider the

[[Page 73766]]

relationship between the threshold and typical facility-wide and 
nationwide emissions. Because the reporting under subpart L to date has 
been only in terms of CO2e rather than by chemical, we do 
not yet know the exact percentage of each facility's emissions that 
will be reported in chemical-specific terms. However, we do know that 
the average fluorinated GHG emissions reported under subpart L by each 
facility can be large: about 415,000 mtCO2e per facility 
with a national total of 6.6 million mtCO2e in 2012. The 
1,000-mtCO2e threshold comprises 0.2 percent of this 
average. If 10 fluorinated GHGs were emitted below the threshold level, 
emissions of these fluorinated GHGs would make up less than 2 percent 
of the average, and even emissions of 50 fluorinated GHGs below the 
threshold would make up less than 10 percent of the average. While some 
facilities have emissions that are higher or lower than the average, 
implying that the percentage of emissions that will be reported in 
chemical-specific terms could be higher or lower than average at those 
facilities, we have concluded that this variability is reasonable given 
the varying environmental impacts of the emissions from those 
facilities. A single numerical threshold is also simpler to implement 
than a threshold expressed as a fraction of facility emissions. Thus, 
we are adopting the former rather than the latter. Although we have 
concluded that setting this threshold equal to 1,000 mtCO2e 
is reasonable based on the information available to us at this time, we 
may reevaluate this threshold if we find that a large share of national 
emissions are not being reported in chemical-specific terms at the 
facility level once reporting begins under these amendments.
    Comment: One commenter stated the proposed ranges for effective 
reporting DE were sufficient for the purposes of the GHGRP. The 
commenter did, however, question whether that information will be more 
useful to the EPA than simply requiring an indication regarding whether 
each process is controlled. The commenter pointed out that destruction 
efficiencies alone are not indicative of the effectiveness of a control 
device.
    Response: We are finalizing the calculation method and ranges for 
the effective DE as proposed. We agree with the commenter that 
destruction efficiencies alone do not fully characterize the 
effectiveness of control devices in reducing emissions. This is why the 
calculation of the effective DE takes into consideration the downtime 
of the destruction device. As discussed in the preamble to the proposed 
rule, downtime can significantly increase emissions. The requirement to 
calculate and specify a range for the effective DE therefore provides 
significantly more information than simply reporting the unweighted DE 
or indicating whether or not a process is controlled by a destruction 
device.
    Comment: One commenter stated that reporting the effective DE for 
processes >10,000 mtCO2e will greatly benefit the 
effectiveness of the reporting program and enhance data reliability. 
The commenter noted that the operation of destruction technology is a 
key element of best practices. The commenter stated there is no 
significant burden for facilities to report both the DE and the 
downtime and opined that destruction device downtime cannot be 
considered CBI and should be disclosed. The commenter suggested that 
facilities also report whether they have in-line destruction equipment 
or whether they collect and transport HFCs to a central destruction 
facility.
    Response: We agree that reporting the effective DE, which accounts 
for both the DE and the downtime of destruction devices, will 
significantly enhance the value of the data (particularly process-level 
data) collected under subpart L. In the proposed subpart L amendments, 
the EPA proposed to report the effective destruction efficiency as a 
range. In support, the EPA noted in that proposal that in the 
memorandum entitled ``Evaluation of Competitive Harm From Disclosure of 
`Inputs to Equations,' '' we found that reporting the precise DE under 
subpart L posed disclosure concerns because the DE provides data that 
could be used with certain other data to calculate the production rate 
and/or process efficiency (cost to do business) (78 FR 69348).\18\ 
Specifically, the DE could be used with other data to calculate the 
production rate or the amount of fluorinated GHG in a destroyed stream 
removed from the process and sent to a destruction device. This 
finding, which was unchanged in the Final Inputs Rule, applies even 
more to the combination of DE and downtime, which, as noted by the 
commenter, provides a more accurate measure of the extent to which 
emissions are being reduced than DE alone. In addition, the EPA 
explained in the proposed subpart L amendments that reporting the 
effective DE as a range will capture the impacts of destruction 
efficiencies and downtimes while avoiding the disclosure of detailed 
process information (78 FR 69349). The commenter generally asserts that 
the destruction device downtime cannot be considered CBI but provides 
no supporting rationale or information. The commenter also expresses no 
disagreement with EPA's assertion that reporting the effective 
destruction efficiency as a range will capture the impacts of 
destruction efficiencies and downtimes. We are therefore finalizing the 
reporting of the effective destruction efficiency as a range, as 
proposed. Regarding the comment that sources should report whether they 
have in-line destruction equipment or whether they collect and 
transport HFCs to a central destruction facility, the requirement that 
facilities report their effective destruction efficiency for each 
process will capture any variability in the uptime or overall 
destruction efficiency associated with the use of different 
configurations of destruction devices at the facility. As a result, 
this specific information is not needed.
---------------------------------------------------------------------------

    \18\ August, 2013, available in Docket EPA-HQ-OAR-2010-0929. 
This finding was reiterated in the memorandum entitled ``Final 
Evaluation of Competitive Harm From Disclosure of `Inputs to 
Equations' '' Data Elements Deferred to March 31, 2015, September, 
2014.
---------------------------------------------------------------------------

    Comment: One commenter stated that the chemical specific emissions 
in 98.126(a)(6) (regarding venting of residual fluorinated GHGs from 
returned containers) should be reported as part of the facility-wide 
totals required in 98.122(d). The commenter indicated it is not clear 
whether chemical-specific emissions reported under 40 CFR 
98.126(d)(6)(ii) would impact the confidentiality issues that the EPA 
is addressing for subpart OO. The commenter stated that container heel 
venting for materials ``returned from the field'' would provide 
information on a specific product that may be CBI under subpart OO. (In 
a follow-up conversation with the EPA, the commenter clarified that 
this information was the chemical identity of the product.) \19\
---------------------------------------------------------------------------

    \19\ See docket EPA-HQ-OAR-2009-0927 for additional information.
---------------------------------------------------------------------------

    Response: As noted in Section II.A.2 of this preamble, the proposed 
reporting requirement at 40 CFR 98.126(a)(6)(ii), which would require 
reporting of the mass of each fluorinated GHG that is emitted from 
returned containers, inadvertently repeated the current reporting 
requirement at 40 CFR 98.126(h)(1), and we are therefore not finalizing 
40 CFR 98.126(a)(6)(ii) in this final rule.
    As discussed in the preamble to the Proposed Amendments to Subpart 
L (78 FR 69350), we did not propose to remove 40 CFR 98.126(h)(1) 
because commenters on previous actions did not identify the requirement 
to report chemical-specific emissions of container

[[Page 73767]]

heels as one of the reporting requirements that pose disclosure 
concerns, and we did not believe that the requirement posed such 
concerns. As we explained in the proposal, container heels consist of 
the residual fluorinated GHGs that remain in containers returned to gas 
manufacturers by their customers. If the fluorinated GHG has been sold 
or otherwise distributed to a customer, its identity can be ascertained 
by a person other than the fluorinated gas manufacturer, including a 
competitor. This is the same principle that we used to support our 
proposal to require reporting of emissions of the fluorinated GHG 
product by facilities that make one product and sell or otherwise 
distribute it to another person. Thus, we are not removing the 
requirement at 40 CFR 98.126(h)(1) to report the masses of residual 
fluorinated GHGs vented from containers.
    We do not believe that the subpart L requirement for fluorinated 
GHG producers to report the mass of each fluorinated GHG that is 
emitted from returned containers impacts confidentiality determinations 
for fluorinated GHG producers under subpart OO, which applies to 
suppliers of industrial GHGs. Under subpart OO, we determined that the 
mass of the fluorinated GHG product produced and reported is CBI. We 
did not address whether the identity of the fluorinated GHG product 
produced and reported was CBI.
4. Summary of Comments on Amendments to Subpart L Inputs Proposed in 
the Proposed Inputs Rule
    Comment: One commenter stated that withdrawing the requirements to 
report the mass and quantity of production of gases and the DE does not 
protect a valid CBI concern and is a great disservice to the public. 
The commenter specifically identified the following paragraphs as areas 
of concern: 40 CFR 98.126(b)(5) through (b)(9), (f)(1), (g)(1), and 
(h)(2). The commenter argued that the amounts of gases produced and the 
destruction efficiencies would not disclose the methodologies for 
making those substances or protect appropriate CBI concerns ``anymore 
than a farmer not disclosing the amount of corn grown on a hectare of 
land would protect CBI.'' According to the commenter, a review of the 
DE helps evaluate the efficiency of different technologies, whether 
companies are optimizing the equipment and whether different collection 
techniques such as collection and destruction at a central facility are 
as effective as an in-line destruction technology. The commenter 
concluded that the EPA should withdraw these proposed changes as the 
needs of public transparency outweigh any alleged CBI concern.
    Response: The commenter specifically objects to the removal of 
reporting requirements in 40 CFR 98.126(b)(5)-(9), (f)(1), (g)(1), and 
(h)(2). The EPA has categorized these data elements as ``inputs to 
equations,'' except for those in 40 CFR 98.126(b)(5). As stated in the 
proposed rule deferring the requirement to report inputs to equations, 
``For any inputs, the release of which EPA determines could result in 
the business harms alleged by commenters, EPA would evaluate whether 
emissions can be calculated or verified using additional methodologies, 
consistent with the transparency and accuracy goals of Part 98, without 
EPA collecting these inputs'' (75 FR 81355). We examined the data 
elements for which reporting was deferred to 2015, as described in the 
Proposed Inputs Rule (78 FR 55994). Our evaluation involved a four-step 
process. The results of this evaluation were documented in the four 
following memoranda available in the EPA's Docket ID No. EPA-HQ-OAR-
2010-0929:
     ``Evaluation of Public Availability of Inputs to Emission 
Equations for which Reporting was Deferred to March 31, 2015,'' August 
2013.
     ``Evaluation of Competitive Harm from Disclosure of 
`Inputs to Equations' Data Elements Deferred to March 31, 2015,'' 
August 2013.
     ``Evaluation of Alternative Calculation Methods,'' August 
2013.
     ``Evaluation of Alternative Verification Approaches For 
Greenhouse Gas Reporting Rule Subparts for which Reporting of Inputs to 
Emission Equations was Deferred to March 31, 2015,'' August 2013.
    Based on the results of the first and second steps of the 
evaluation (evaluation of public availability and competitive harm), 
the EPA identified disclosure concerns associated with the subpart L 
inputs to equations reporting elements mentioned by the commenter.
    The EPA determined in its memorandum ``Evaluation of Competitive 
Harm from Disclosure of `Inputs to Equations' Data Elements Deferred to 
March 31, 2015,'' August 2013 (refer to Docket ID No. EPA-HQ-OAR-2010-
0929) that the following inputs to emission equations provide 
production or raw material data that could cause competitive harm if 
released: The mass of each fluorine-containing reactant that is fed 
into the process (40 CFR 98.126(b)(6)); the mass of each fluorine-
containing product produced by the process (40 CFR 98.126(b)(7)); the 
mass of each fluorine-containing product, by-product, and reactant that 
are removed from the process and fed into the destruction device (40 
CFR 98.126(b)(8)(i)-(iii)); the mass of each fluorine-containing by-
product that is removed from the process and recaptured (40 CFR 
98.126(b)(8)(iv)); the mass of fluorine in each stream that is fed into 
the destruction device (40 CFR 98.126(b)(9)(i)); the mass of fluorine 
that is recaptured (40 CFR 98.126(b)(9)(ii)); and the mass of the 
fluorinated GHG fed into the destruction device (40 CFR 98.126(g)(1)). 
The competitive harm evaluation further explains that the demonstrated 
DE of the destruction device for each fluorinated GHG fed into the 
device from the process (40 CFR 98.126(b)(8)(v)), the weighted average 
DE of the destruction device calculated for each stream (40 CFR 
98.126(b)(9)(iii)), and the DE of each destruction device for each 
fluorinated GHG whose destruction the facility reflects in 40 CFR 
98.123 (40 CFR 98.126(f)(1) provide data that could be used to 
calculate the amount of fluorinated GHG in a waste stream removed from 
the process and sent to a destruction device. Competitors could deduce 
the amount of fluorinated GHG sent to a destruction device if the 
annual emissions of each fluorinated GHG (as required to be reported 
under 40 CFR 98.126(a)(2)) are known and if it could be deduced that 
the emissions consist exclusively of post-destruction device emissions 
(information that a competitor knowledgeable of some aspects of the 
facility and/or of fluorine chemistry might deduce).
    We proposed that these inputs to equations would be entered into 
IVT instead of being reported to the EPA. The commenter asserted that 
the amounts of gases produced and the destruction efficiencies would 
not disclose the methodologies for making those substances; however, it 
is not the potential disclosure of production methods that is of 
concern for these data elements, but the ability to calculate 
production and process efficiency from the release of these data. As 
discussed in the proposed competitive harm evaluation and reiterated in 
final competitive harm memorandum (which was unchanged from the 
proposed memo for subpart L), disclosing a facility's production or 
throughput data would be detrimental to a firm's competitiveness by 
revealing confidential process information and operational and 
marketing strategies, and disclosing process performance and operation 
information could be

[[Page 73768]]

detrimental to a firm's competitiveness by revealing process 
efficiency, providing insight into a firm's operational strengths and 
weaknesses. As a result, our finding that disclosure of these inputs to 
equation would be detrimental to a firm's competitiveness still stands. 
Refer to the memorandum ``Final Evaluation of Competitive Harm from 
Disclosure of ``Inputs to Equations'' Data Elements Deferred to March 
31, 2015'' September 2014 (refer to Docket ID No. EPA-HQ-OAR-2010-0929) 
for additional details on this finding. We are therefore finalizing as 
proposed, with the exception being that the inputs to equation in 40 
CFR 98.126(b) will not be entered into IVT. These inputs are specific 
to the mass balance method, which is being removed in this action. As a 
result, since the use of IVT will start for reporting year 2015 for 
subpart L, the mass balance method will no longer be a method in 
subpart L. As discussed earlier in this section of the preamble, we are 
also requiring the effective DE to be reported as a range, which will 
capture the impacts of destruction efficiencies and downtimes while 
avoiding the disclosure of detailed process information.
    Finally, for the heel factor calculated for each container size and 
type (40 CFR 98.126(h)(2)), the EPA determined in the harm evaluation 
that these data could be used to calculate the number of tanks 
processed if the emissions from each type of container (as required to 
be reported in 40 CFR 98.126(h)(1)) are also known. (The 
confidentiality determination for the emissions from each type of 
container as required to be reported in 40 CFR 98.126(h)(1) is being 
finalized in this action as emission data.) The number of each type of 
tank processed and the size of the tanks could provide insight into 
product sales. Again, the commenter did not provide any rationale for 
reversing these findings beyond asserting that the mass and amount of 
gases produced and the destruction efficiency rates will not disclose 
the methodologies for making the substances. As a result, our finding 
that the heel factor could provide insight into product sales still 
stands, and we are finalizing as proposed that this input to equation 
be entered into IVT rather than reported to the EPA.
    With respect to the mass of F-GHG by-product emitted from the 
process (40 CFR 98.126(b)(5)), this data element is not an input to an 
equation and was therefore not included in the Proposed Inputs rule. It 
was, however, part of the Proposed Amendments to Subpart L. As 
discussed in the Proposed Amendments to Subpart L, the data element may 
reveal detailed process information. The EPA proposed to delete this 
reporting element as part of its removal of the mass balance method, 
and the EPA is finalizing the removal of this method in this action.
5. Fluorinated GHG Groups
a. Summary of Fluorinated GHG Groups
    We are establishing 12 fluorinated GHG groups into which subpart L 
facilities will sort emissions for reporting at the process level. 
These groups are the same as those established for purposes of 
developing and assigning the default GWPs being added to Table A-1, 
discussed in Section II.B.
b. Changes Since the Proposed Amendments to Subpart L
    We proposed to establish five fluorinated GHG groups for process-
level reporting under subpart L: (1) Fully fluorinated GHGs and HTFs, 
(2) saturated HFCs, (3) saturated HFEs and saturated HCFEs, (4) 
unsaturated PFCs, unsaturated HFCs, unsaturated HCFCs, unsaturated 
HFEs, and fluorinated ketones, and (5) other fluorinated GHGs and HTFs. 
Commenters requested that we split the third group, expand the fourth 
group, and add two additional groups, fluorotelomer alcohols and 
fluorinated GHGs with carbon-iodine bonds, to increase the precision 
and accuracy of the default GWPs applied to the chemicals in these 
groups. One commenter stated that five types of compounds, including 
unsaturated fluorinated ethers, unsaturated halogenated esters, 
fluorinated aldehydes, fluorotelomer alcohols,\20\ and fluorinated GHGs 
with carbon iodine bonds, would have been assigned GWPs that were too 
high if they had remained in the ``Other'' category. Another commenter 
stated that two types of saturated HFEs and HCFEs would have been 
assigned GWPs that were, on average, either too high (for partially 
segregated saturated HFEs and HCFEs) or too low (for non-segregated 
saturated HFEs and HCFEs).
---------------------------------------------------------------------------

    \20\ At one point in its comment, the commenter recommended 
establishing a separate group for fluorinated alcohols generally, 
which is a larger set than fluorotelomer alcohols, with an average 
GWP of approximately 25 (including fluorotelomer alcohols) or 30 
(excluding fluorotelomer alcohols). Another commenter also 
recommended establishing a separate group to account for fluorinated 
GHGs with GWPs at or near a value of 10. As discussed in Section 
II.A of this preamble, we are establishing a separate fluorinated 
GHG group that has a default GWP of 30 and that includes, among 
other types of compounds, fluorinated alcohols other than 
fluorotelomer alcohols.
---------------------------------------------------------------------------

    We agreed with these comments and consequently included the 
suggested additional fluorinated GHG groups and associated default GWPs 
in the Proposed Rule to Add GWPs. We also proposed that the group of 
unsaturated compounds include unsaturated fluorinated ethers, 
unsaturated halogenated esters, and fluorinated aldehydes. Following 
additional research and the receipt of comments on the Proposed Rule to 
Add GWPs, we decided to add four additional fluorinated GHG groups, as 
described in Section II.A.2. In addition to increasing the precision 
and accuracy of the default GWPs, these changes increase the precision 
of the subpart L process-level reporting that relies on these chemical 
groups. The analysis supporting the fluorinated GHG groups and 
associated default GWPs can be found in the memorandum entitled 
``Analysis of Fluorinated Greenhouse Gas Groups and Associated Default 
GWPs (Revised, November 2014)'' in Docket number EPA-HQ-OAR-2009-0927.
c. Comments Received on the Proposed Amendments to Subpart L Regarding 
Fluorinated GHG Groups and Responses
    Comment: Three commenters supported the establishment of 
fluorinated GHG groups based on chemical type for purposes of 
aggregating process-level emissions and setting default GWPs, although 
each commenter suggested revisions to the proposed groups.
    Response: We agree that establishing fluorinated GHG groups and 
GWPs based on chemical type helps to ensure that the groupings and 
default GWPs convey accurate and precise information about the 
atmospheric impacts of the fluorinated GHGs that fall into the groups. 
The comments and responses regarding suggested changes to the proposed 
fluorinated GHG groups are discussed in Section II.B.5.b of this 
preamble and in the response to comments document for this rule in 
Docket number EPA-HQ-OAR-2009-0927.
    Comment: Three commenters supported adding chemical-specific GWPs 
to Table A-1 when those values were established by an internationally 
recognized scientific body, peer-reviewed, or supported by adequate 
technical demonstrations.
    Response: As discussed above, the EPA is amending Table A-1 to add 
98 chemical-specific GWPs, which are primarily drawn from the IPCC AR5. 
A discussion of the EPA's criteria for including chemical-specific GWPs 
in Table A-1 can be found in the Proposed Rule to Add GWPs (79 FR 
44332). As noted above, the new chemical-specific GWPs in Table A-1 
will be applied to

[[Page 73769]]

the fluorinated GHGs reported under subpart L, as appropriate, as well 
as under other subparts.
    Comment: One commenter continued to believe that the ``best 
estimate'' approach currently contained in the subpart L rule 
[98.126(j)(3)] as an interim reporting construct is the most 
appropriate method for determining GWPs when they are not listed in 
Table A-1. However, the commenter appreciated the EPA's need to provide 
a consistent method for all reporters and the F-GHG groupings included 
in the subpart L proposal are acceptable. Another commenter supported 
the establishment of consistent default GWPs and stated that the best-
estimate GWP process setup in the temporary subpart L reporting changes 
[98.126(j)(3)] led to doubts about the accuracy, reliability, and 
comparability of the data.
    Response: As discussed in the Proposed Amendments to Subpart L (78 
FR 69348), we believe that the replacement of ``best-estimate'' GWPs 
with multiple default GWPs based on fluorinated GHG group is important 
to ensuring the long-term consistency, accuracy, reliability, and 
comparability of CO2e emissions estimates for fluorinated 
gas producers.
    Comment: One commenter requested confirmation that when Table A-1 
contains a chemical-specific GWP for a fluorinated GHG, that value will 
be used to calculate and report emissions, and that default values will 
be used only when chemical-specific values are not available. Emissions 
from each fluorinated GHG group would include compounds whose GWPs 
could be either chemical-specific or default values.
    Response: The commenter is correct in this interpretation. To make 
this clear, we are finalizing the revisions to the definition of 
``global warming potential'' that we proposed in the Proposed Rule to 
Add GWPs. This revision states that the chemical-specific GWPs in Table 
A-1 are required to be applied to GHGs that have chemical-specific GWPs 
listed in Table A-1, while the default GWPs in Table A-1 are required 
to be applied to fluorinated GHGs that do not have chemical-specific 
GWPs listed in Table A-1. This is the case even when emissions of the 
fluorinated GHGs are reported in terms of CO2e by 
fluorinated GHG group. This will help to ensure that chemical-specific 
and default GWPs are applied correctly and consistently in 
CO2e calculations for subpart L and across Part 98.
    Comment: Two commenters stated that it is their understanding that 
the introduction of the new default GWPs would not affect threshold 
evaluations that have already been conducted under subpart L (i.e., 
preliminary engineering estimates used to ascertain whether emissions 
testing is required). With the revised GWPs, one commenter noted it is 
possible that changes would occur in the calculations that are made 
under 40 CFR 98.123(c)(1) or (2) and that calculated emissions could 
increase above the 10,000 mtCO2e per year reporting 
threshold. The other commenter stated their understanding is that this 
would only be required for new processes or process changes. One 
commenter requested that the EPA clearly state that additional testing 
would not be required until some other process change required this to 
be completed.
    Response: Fluorinated gas producers are not required to re-perform 
the preliminary calculations for each process vent emitting fluorinated 
GHGs whose GWPs are increasing under this rule. However, those 
preliminary calculations and the calculations performed for purposes of 
annual reporting are distinct. If the emissions that facilities 
calculate from a vent for purposes of annual reporting exceed the 
10,000-metric-ton-CO2e threshold based on the updated GWPs, 
they must perform emission testing on that vent during the following 
year. This is required by the current provisions of subpart L.
    40 CFR 98.123(c)(2)(i) states: ``If the calculations under 
paragraph (c)(1) of this section, as well as any subsequent 
measurements and calculations under this subpart, indicate that the 
continuous process vent has fluorinated GHG emissions of less than 
10,000 metric ton CO2e per year, summed across all operating 
scenarios, then you may comply with either paragraph (c)(3) of this 
section (Emission Factor approach) or paragraph (c)(4) of this section 
(Emission Calculation Factor approach).'' 40 CFR 98.123(c)(2)(ii) 
states ``If the continuous process vent does not meet the criteria in 
paragraph (c)(2)(i) of this section then you must comply with the 
emission factor method specified in paragraph (c)(3) (Emission Factor 
Approach) of this section.''
    In the monitoring provisions of subpart L, 40 CFR 98.124(c)(8) 
further states: ``If a continuous process vent with fluorinated GHG 
emissions less than 10,000 metric tons CO2e, per 40 CFR 
98.123(c)(2), is later found to have fluorinated GHG emissions of 
10,000 metric tons CO2e or greater, you must conduct the 
emission testing for the process vent during the following year and 
develop the process-vent-specific emission factor from the emissions 
testing.''
    Together, these paragraphs require fluorinated gas production 
facilities to conduct emissions testing on continuous process vents 
whose emissions are calculated to exceed 10,000 metric tons of 
CO2e per year either under the preliminary calculations of 
40 CFR 98.123(c)(1) or under subsequent measurements and calculations, 
particularly the measurements and calculations used to estimate 
emissions from the vent for every annual report. This testing must be 
performed in the following year and reflected in the report for that 
year. Thus, if a fluorinated gas production facility found that a vent 
exceeded the threshold in 2014, the facility would be required to 
perform testing by February 28, 2016 to develop an emission factor to 
report the 2015 emissions from that vent.
    Comment: Two commenters requested clarification that subpart L 
facilities would not be required to re-perform any assessments that 
were performed in previous years, such as the calculation of the 
relative standard deviation of the emission factors measured to develop 
a process-vent-specific emission factor, and the calculation of 
differences among the emission calculation factors for different 
operating scenarios implemented in previous years.
    Response: Subpart L facilities are not required to recalculate 
either the relative standard deviation of the emission factors measured 
to develop a process-vent-specific emission factor, or the differences 
among the emission calculation factors for different operating 
scenarios implemented in previous years. However, in future 
calculations, they are required to use the GWPs in effect at the time 
of the calculation.
    Comment: Two commenters requested confirmation that, for purposes 
of comparing the emission calculation factors for different operating 
scenarios of the same process, they should use the same GWPs in both 
factors.
    Response: Under subpart L, facilities that plan a change to an 
operating scenario whose emission factor was measured must estimate and 
compare the emission calculation factors for the measured and changed 
scenarios. If the difference exceeds 15 percent, then the facility must 
re-test (40 CFR 98.124(c)(7)(ii)).
    For purposes of these and similar calculations, facilities should 
use, for both the original and the updated parameters, the GWPs that 
are in the version of Table A-1 in effect at the time of the 
calculation. This will avoid

[[Page 73770]]

the introduction of differences that are caused by differences in GWPs 
rather than by changes to production processes.

C. Removal of the Mass-Balance Method From Subpart L

    As proposed, we are removing the option to use a mass-balance 
method from the calculation and monitoring requirements of the rule. No 
facilities have used this method since RY 2011. We received no negative 
comments regarding the proposed removal. However, one commenter 
requested that the EPA include the mass-balance provisions in an 
appendix to Part 98 for future reference (e.g., in amending past 
reports) rather than referencing the Federal Register document that 
included the 2010 Subpart L Rule. We are including the mass-balance 
provisions in an appendix to subpart L because we are requiring full 
reporting in 2015 of emissions that may have been measured using the 
mass balance method during the 2011 reporting year. With the removal of 
the mass-balance method, facilities will still be able to use the 
emission factor and emission calculation factor approaches to monitor, 
calculate, and report their fluorinated GHG emissions.

D. Clarification of the Subpart L Emission Factor Method

1. Summary of Clarification of the Emission Factor Method
    The EPA is finalizing part of the proposed revision to the emission 
testing requirement at 40 CFR 98.124(c)(1). For process vents for which 
facilities performed scoping speciations, facilities will be required 
to include in the emissions test ``any fluorinated GHG that was 
identified in the initial scoping speciation'' rather than ``any 
fluorinated greenhouse gas that occurs in more than trace 
concentrations in the vent stream or, where a destruction device is 
used, in the inlet to the destruction device.'' For process vents for 
which facilities did not perform scoping speciations, facilities will 
continue to be required to include ``any fluorinated greenhouse gas 
that occurs in more than trace concentrations in the vent stream or, 
where a destruction device is used, in the inlet to the destruction 
device.'' As noted in the proposed rule, a primary purpose of the 
scoping speciation was to identify fluorinated GHGs to measure in 
subsequent emissions testing for the development of emission factors, 
and this change ensures that the scoping speciation serves that 
purpose. The set of fluorinated GHGs identified in the scoping 
speciation is expected to be broader than the set of fluorinated GHGs 
that occurs in more than trace concentrations in vent streams because 
the scoping speciation requires the identification of fluorinated GHGs 
that occur in more than trace concentration in any stream, including 
process streams as well as vent streams.
    As noted in the proposed rule, this requirement will be applied to 
future testing, but not to past testing.
2. Changes Since the Proposed Rule
    The proposed rule would also have required facilities to test for 
compounds that were ``otherwise known to occur in the vent stream.'' We 
are not finalizing this requirement after several commenters expressed 
concerns that it would require facilities to develop costly new 
protocols for fluorinated GHGs that are emitted at very low levels and 
that would fall below the detection limit in many cases. The commenters 
stated that the resulting testing would reveal ``little if any 
additional emissions information'' and would have only ``minor impact 
on the estimated total quantity of CO2e emitted 
nationwide.'' To avoid the possibility of imposing large costs in order 
to quantify very small emissions of fluorinated GHGs, we are following 
the commenters' recommendations.
    However, we plan to continue to evaluate the significance of and 
feasibility of measuring emissions of fluorinated GHGs that are known 
to occur in processes below trace concentrations. Based on our 
experience establishing stack testing requirements for another 
industry, fluorinated GHGs emitted from some types of facilities can be 
detected at concentrations below 20 parts per billion, approximately 
50,000 times lower than 0.1 percent, the Part 98 definition of ``trace 
concentration.'' In addition, emissions of trace concentrations of 
fluorinated GHGs at flow rates typical of these types of facilities 
would be very high. Nevertheless, we are aware that the conditions 
under which fluorinated GHGs are emitted from fluorinated gas 
production facilities (e.g., diluents and flow rates) may be 
significantly different from those of other facilities, indicating that 
more research is needed.
    In addition to potentially expanding the set of fluorinated GHGs 
that must be tested for in processes for which facilities perform 
scoping speciations, the ``otherwise known to occur'' language would 
have covered situations in which a process vent exceeded the 10,000-
mtCO2e threshold for emission testing but did not exceed the 
one-metric-ton-of-fluorinated-GHGs threshold for the scoping 
speciation. This situation is expected to be rare, but could occur if 
the fluorinated GHGs emitted had very high GWPs (i.e., over 10,000). To 
continue to cover this situation, we are retaining the requirement to 
test for ``any fluorinated greenhouse gas that occurs in more than 
trace concentrations in the vent stream or, where a destruction device 
is used, in the inlet to the destruction device'' for processes for 
which facilities did not perform scoping speciations.

III. Overview and Approach to Final CBI Determinations

A. Final Confidentiality Determinations for New, Revised, and Unchanged 
Data Elements

    In this action, the EPA is finalizing both the confidentiality 
determinations that were included in the Proposed Amendments to Subpart 
L (for the new and substantially revised data elements) and many of the 
confidentiality determinations that were included in the 2012 Proposed 
Confidentiality Determinations (for the subpart L data elements that 
are not being removed or substantially revised). We received only 
supportive comments on the proposed confidentiality determinations for 
the new and substantially revised data elements, and are finalizing the 
confidentiality determinations as proposed for all 15 of those data 
elements. We received multiple comments on the January 10, 2012 
proposed confidentiality determinations for a number of existing 
subpart L data elements, and we have addressed these comments through 
the revisions to the subpart L reporting requirements being finalized 
in today's action. For a list of these comments please see the comment 
response document in Docket number EPA-HQ-OAR-2009-0927. We are not 
finalizing determinations for reporting requirements associated with 
the use of Best Available Monitoring Methods (BAMM) under subpart L. 
Unlike the other data elements required to be reported under subpart L, 
BAMM data elements were reported only for reporting years 2011 and 2012 
because the option to use BAMM expired in reporting year 2012 . In 
light of the above, we do not see a need to establish in this 
rulemaking the confidentiality status of the suite of BAMM data 
elements (approximately 60). In the event that we receive a request to 
release this information, depending on the nature and extent of the 
request, we will make such determinations either case-by-case or, if 
appropriate, by finalizing the CBI determinations in a separate 
rulemaking. Other than the

[[Page 73771]]

reporting requirements associated with BAMM, there are 14 existing 
subpart L data elements for which we received no comment on the 
proposed confidentiality determinations; we are finalizing the 
confidentiality determinations as proposed for 10 of these data 
elements. For the other four data elements, we have decided not to make 
a final confidentiality determination, as discussed below. We are also 
finalizing a confidentiality determination for a data element added 
since proposal.
    To make the confidentiality determinations, the EPA used the same 
approach that we previously used for the 2011 final CBI rule (76 FR 
30782, May 26, 2011). Specifically, for the 25 data elements (15 new 
and substantially revised data elements and 10 existing data elements), 
the confidentiality status of which we are finalizing today, the EPA 
had proposed to assign each of these data elements to one of 11 direct 
emitter data categories,\21\ based on the type and characteristics of 
the data elements. For a description of each data category and the type 
and characteristics of data elements assigned to each category, see 
Sections II.C and II.D of the July 7, 2010 CBI proposal preamble (75 FR 
39106-39130). Based on its evaluation of these 25 data elements, the 
EPA proposed to assign each data element to one of the following direct 
emitter data categories:
---------------------------------------------------------------------------

    \21\ There are 11 data categories for direct emitter subparts. 
See 2011 final CBI rule (76 FR 30782, May 26, 2011). Subpart L is a 
direct emitter subpart.
---------------------------------------------------------------------------

     Emissions.
     Calculation Methodology and Methodological Tier.
     Data Elements Reported for Periods of Missing Data that 
are Not Inputs to Emission Equations.
     Facility and Unit Identifier Information.
     Unit/Process ``Static'' Characteristics that are Not 
Inputs to Emission Equations.
     Unit/Process Operating Characteristics that are Not Inputs 
to Emission Equations.
     Test and Calibration Methods.
    In the 2011 final CBI rule (76 FR 30782, May 26, 2011), the EPA 
made categorical determinations that all data elements assigned to the 
``Emissions,'' ``Calculation Methodology and Methodological Tier,'' 
``Facility and Unit Identifier Information,'' and ``Data Elements 
Reported for Periods of Missing Data that are Not Inputs to Emission 
Equations'' data categories meet the definition of ``emission data'' in 
40 CFR 2.301(a)(2)(i) and, thus, are not entitled to confidential 
treatment. In addition, the EPA determined that all data elements 
assigned to the ``Test and Calibration Methods'' data category were not 
CBI. The EPA had proposed to assign 21 of the 25 data elements to one 
of the above-mentioned data categories and to apply to these data 
elements the categorical confidentiality determinations of their 
assigned categories. The EPA is therefore finalizing the category 
assignment and application of the categorical determinations as 
proposed for these 21 data elements. As shown in Table 4A of this 
preamble, 10 data elements are assigned to the ``Emissions'' data 
category, four data elements are assigned to the ``Calculation 
Methodology and Methodological Tier'' category, five data elements are 
assigned to the ``Data Elements Reported for Periods of Missing Data 
that are Not Inputs to Emission Equations'' data category, one data 
element is assigned to the ``Facility and Unit Identifier Information'' 
data category, and one data element to the ``Test and Calibration 
Methods'' category. Each of these 21 data elements is subject to the 
categorical confidentiality determination for the data category to 
which it is assigned.

  Table 4A--Data Elements Assigned to the ``Emissions,'' ``Calculation
  Methodology and Methodological Tier,'' ``Facility and Unit Identifier
  Information,'' ``Test and Calibration Methods,'' and ``Data Elements
  Reported for Periods of Missing Data That Are Not Inputs to Emission
                       Equations'' Data Categories
------------------------------------------------------------------------
                   Citation                           Data element
------------------------------------------------------------------------
      ``Emissions'' Data Category (determined to be emission data)
------------------------------------------------------------------------
40 CFR 98.126(a)(3)..........................  For facilities with more
                                                than one fluorinated gas
                                                product: for each
                                                generically-identified
                                                production or
                                                transformation process
                                                and each fluorinated GHG
                                                group, total GWP-
                                                weighted emissions of
                                                all fluorinated GHGs in
                                                that group emitted from
                                                the process, in metric
                                                tons CO2e.
40 CFR 98.126(a)(4)(i).......................  For facilities with more
                                                than one fluorinated gas
                                                product: for each
                                                fluorinated GHG with
                                                emissions of 1,000
                                                metric tons of CO2e or
                                                more from production and
                                                transformation
                                                processes, summed across
                                                the facility as a whole,
                                                the total mass in metric
                                                tons of the fluorinated
                                                GHG emitted from
                                                production and
                                                transformation
                                                processes, summed across
                                                the facility as a whole.
40 CFR 98.126(a)(4)(ii)......................  For facilities with more
                                                than one fluorinated gas
                                                product: total GWP-
                                                weighted emissions of
                                                all other fluorinated
                                                GHGs from production and
                                                transformation processes
                                                by fluorinated GHG group
                                                for the facility as a
                                                whole, in metric tons of
                                                CO2e.
40 CFR 98.126(a)(5)..........................  For facilities that
                                                produce only one
                                                fluorinated gas product:
                                                aggregated total GWP-
                                                weighted emissions of
                                                fluorinated GHGs from
                                                production and
                                                transformation processes
                                                by fluorinated GHG group
                                                for the facility as a
                                                whole, in metric tons of
                                                CO2e.
40 CFR 98.126(a)(5)..........................  Where facilities produce
                                                only one fluorinated gas
                                                product but emissions
                                                from production and
                                                transformation processes
                                                consist of a major
                                                fluorinated GHG
                                                constituent of that
                                                fluorinated gas product,
                                                and the product is sold
                                                or transferred to
                                                another person: total
                                                mass in metric tons of
                                                each fluorinated GHG
                                                emitted from production
                                                and transformation
                                                processes that is a
                                                major fluorinated GHG
                                                constituent of the
                                                product.
40 CFR 98.126(c)(3)..........................  For the emission factor
                                                and emission factor
                                                calculation method: for
                                                each process and each
                                                fluorinated GHG group,
                                                the total GWP-weighted
                                                mass of all fluorinated
                                                GHGs in that group
                                                emitted from all process
                                                vents combined, in
                                                metric tons of CO2e.
40 CFR 98.126(c)(4)..........................  For the emission factor
                                                and emission factor
                                                calculation method: for
                                                each process and each
                                                fluorinated GHG group,
                                                the total GWP-weighted
                                                mass of all fluorinated
                                                GHGs in that group
                                                emitted from equipment
                                                leaks, in metric tons of
                                                CO2e.
40 CFR 98.126(e).............................  For each fluorinated gas
                                                production facility that
                                                destroys fluorinated
                                                GHGs, report the excess
                                                emissions that result
                                                from malfunctions of the
                                                destruction device.

[[Page 73772]]

 
40 CFR 98.126(g)(2)..........................  For each fluorinated gas
                                                production facility that
                                                destroys fluorinated
                                                GHGs, report the mass of
                                                each previously produced
                                                fluorinated GHG emitted
                                                from the destruction
                                                device (metric tons).
40 CFR 98.126(h)(1)..........................  For each fluorinated gas
                                                production facility that
                                                vents residual
                                                fluorinated GHGs from
                                                containers, report, for
                                                each fluorinated GHG
                                                vented, the mass of the
                                                residual fluorinated GHG
                                                vented from containers
                                                annually (metric tons).
------------------------------------------------------------------------
    ``Calculation Methodology and Methodological Tier'' Data Category
                    (determined to be emission data)
------------------------------------------------------------------------
40 CFR 98.126(a)(2)(iv)......................  For each generically
                                                identified fluorinated
                                                gas production and
                                                transformation process
                                                and each fluorinated GHG
                                                group at the facility:
                                                the methods used to
                                                determine the mass
                                                emissions of that
                                                fluorinated GHG group
                                                from that process from
                                                process vents.
40 CFR 98.126(a)(2)(v).......................  For each generically
                                                identified fluorinated
                                                gas production and
                                                transformation process
                                                and each fluorinated GHG
                                                group at the facility:
                                                the methods used to
                                                determine the mass
                                                emissions of that
                                                fluorinated GHG group
                                                from that process from
                                                equipment leaks, unless
                                                the mass balance method
                                                was used (for RYs 2011,
                                                2012, 2013 and 2014
                                                only).
40 CFR 98.126(b)(1)..........................  For the mass-balance
                                                approach (for RYs 2011,
                                                2012, 2013 and 2014
                                                only): the overall
                                                absolute and relative
                                                errors calculated for
                                                the process under the
                                                former 40 CFR
                                                98.123(b)(1), in tons
                                                and decimal fraction,
                                                respectively.
40 CFR 98.126(b)(2)..........................  For the mass-balance
                                                approach (for RYs 2011,
                                                2012, 2013 and 2014
                                                only): the method used
                                                to estimate the total
                                                mass of fluorine in
                                                destroyed or recaptured
                                                streams (specify the
                                                former 40 CFR
                                                98.123(b)(4) or (15)).
------------------------------------------------------------------------
``Data Elements Reported for Periods of Missing Data That Are Not Inputs
 to Emission Equations'' Data Category (determined to be emission data)
------------------------------------------------------------------------
40 CFR 98.126(d)(1)..........................  Where missing data have
                                                been estimated pursuant
                                                to 40 CFR 98.125, the
                                                generically identified
                                                process for which the
                                                data were missing.
40 CFR 98.126(d)(2)..........................  Where missing data have
                                                been estimated according
                                                to 40 CFR 98.125, the
                                                reason the data were
                                                missing.
40 CFR 98.126(d)(2)..........................  Where missing data have
                                                been estimated according
                                                to 40 CFR 98.125, the
                                                length of time the data
                                                were missing.
40 CFR 98.126(d)(2)..........................  Where missing data have
                                                been estimated according
                                                to 40 CFR 98.125, the
                                                method used to estimate
                                                the missing data.
40 CFR 98.126(d)(3)..........................  Where missing data have
                                                been estimated according
                                                to 98.125, estimates of
                                                the missing data for all
                                                missing data associated
                                                with data elements
                                                required to be reported
                                                in this section.
------------------------------------------------------------------------
 ``Facility and Unit Identifier Information'' Data Category (determined
                          to be emission data)
------------------------------------------------------------------------
40 CFR 98.126(a)(2)(i).......................  For each generically
                                                identified production
                                                and transformation
                                                process at the facility:
                                                a number, letter, or
                                                other identifier for the
                                                process. This identifier
                                                must be consistent from
                                                year to year.
------------------------------------------------------------------------
  ``Test and Calibration Methods'' Data Category (determined not to be
                                  CBI)
------------------------------------------------------------------------
40 CFR 98.126(f)(3)..........................  For each fluorinated gas
                                                production facility that
                                                destroys fluorinated
                                                GHGs, the date of the
                                                most recent destruction
                                                device test.
------------------------------------------------------------------------

    In the Proposed Amendments to Subpart L, the EPA proposed to assign 
two new data elements to the ``Unit/Process `Static' Characteristics 
that are Not Inputs to Emission Equations'' category and one new data 
element to the ``Unit/Process Operating Characteristics that are Not 
Inputs to Emission Equations'' category. In addition, the EPA had 
proposed to assign one existing data element to the ``Unit/Process 
Operating Characteristics that are Not Inputs to Emission Equations'' 
in the 2012 Proposed Confidentiality Determinations. In the 2011 final 
CBI rule, the EPA determined that the data elements in these categories 
are not ``emission data'' (as defined at 40 CFR 2.301(a)(2)(i)). 
However, instead of categorical determinations, the EPA made 
confidentiality determinations for individual data elements assigned to 
these categories. In proposing these determinations, the EPA considered 
the confidentiality criteria at 40 CFR 2.208, in particular whether 
release of the data is likely to cause substantial harm to the 
business's competitive position. See 40 CFR 2.208(e)(1). The EPA 
followed the same approach and proposed individual confidentiality 
determination for each of the four data elements assigned to these two 
data categories. The EPA received no comment on these proposed 
determinations and we are finalizing these determinations as proposed. 
Table 4B of this preamble identifies these four data elements along 
with their confidentiality determinations and the supporting 
rationales.

[[Page 73773]]

  Table 4B--Final Confidentiality Determinations for New Data Elements Assigned to the ``Unit/Process `Static'
  Characteristics That Are Not Inputs to Emission Equations'' and the ``Unit/Process Operating Characteristics
                           That Are Not Inputs to Emission Equations'' Data Categories
----------------------------------------------------------------------------------------------------------------
                                                                                                Rationale for
                  Citation                        Data element          Confidentiality        confidentiality
                                                                         determination          determination
----------------------------------------------------------------------------------------------------------------
                 Unit/Process `Static' Characteristics That Are Not Inputs to Emission Equations
----------------------------------------------------------------------------------------------------------------
40 CFR 98.126(a)(2)(ii).....................  For each             Not CBI.................  This data element
                                               generically                                    would reveal only
                                               identified                                     general
                                               production and                                 information about
                                               transformation                                 the type of
                                               process at the                                 operation, which
                                               facility:                                      would not reveal
                                               indication of                                  any information
                                               whether the                                    about the
                                               process is a                                   production process
                                               fluorinated gas                                (e.g., number of
                                               production                                     process steps,
                                               process, a                                     manufacturing
                                               fluorinated gas                                efficiencies,
                                               transformation                                 novel productions
                                               process where no                               methods) that
                                               fluorinated GHG                                would allow
                                               reactant is                                    competitors to
                                               produced at                                    gain a competitive
                                               another facility,                              advantage.
                                               or a fluorinated
                                               gas transformation
                                               process where one
                                               or more
                                               fluorinated GHG
                                               reactants are
                                               produced at
                                               another facility.
40 CFR 98.126(a)(2)(iii)....................  For each             Not CBI.................  This data element
                                               generically-                                   would reveal only
                                               identified                                     a general
                                               production and                                 description of the
                                               transformation                                 type of production
                                               process at the                                 process, which
                                               facility:                                      would not reveal
                                               Indication of                                  any information
                                               whether the                                    about the process
                                               process could be                               (e.g., number of
                                               characterized as                               process steps,
                                               reaction,                                      manufacturing
                                               distillation, or                               efficiencies,
                                               packaging (include                             novel productions
                                               all that apply).                               methods) that
                                                                                              would allow
                                                                                              competitors to
                                                                                              gain a competitive
                                                                                              advantage.
----------------------------------------------------------------------------------------------------------------
                Unit/Process Operating Characteristics That Are Not Inputs to Emission Equations
----------------------------------------------------------------------------------------------------------------
40 CFR 98.126(a)(6).........................  For each             Not CBI.................  This data element
                                               generically                                    would place the
                                               identified                                     effective DE for
                                               process, the range                             the process in a
                                               in Table L-2 that                              range. For any
                                               encompasses the                                given level of
                                               effective DE,                                  emissions, this
                                               DEeffective,                                   range would
                                               calculated for                                 correspond to a
                                               that process using                             range of masses
                                               Equation L-35,                                 vented to the
                                               based on CO2e.                                 destruction device
                                                                                              that spanned a
                                                                                              factor of four or
                                                                                              more. Thus, even
                                                                                              if competitors had
                                                                                              a rough estimate
                                                                                              of the quantity of
                                                                                              the product
                                                                                              produced (e.g.,
                                                                                              from sources other
                                                                                              than the GHGRP),
                                                                                              this information
                                                                                              would not reveal
                                                                                              any information
                                                                                              about the process
                                                                                              (e.g.,
                                                                                              manufacturing
                                                                                              efficiencies) that
                                                                                              would allow
                                                                                              competitors to
                                                                                              gain a competitive
                                                                                              advantage.
40 CFR 98.126(f)(4).........................  For each             Not CBI.................  This data element
                                               fluorinated gas                                would not reveal
                                               production                                     any information
                                               facility that                                  about the process
                                               destroys                                       (e.g.,
                                               fluorinated GHGs,                              manufacturing
                                               the name of all                                efficiencies) that
                                               applicable federal                             would allow
                                               or state                                       competitors to
                                               regulations that                               gain a competitive
                                               may apply to the                               advantage.
                                               destruction
                                               process.
----------------------------------------------------------------------------------------------------------------

    The EPA has decided not to make a final determination for four 
existing data elements that remain unchanged in today's amendments:
     For each fluorinated gas production facility that destroys 
fluorinated GHGs, chemical identity of the F-GHG(s) used in the 
performance test conducted to determine DE, including surrogates (40 
CFR 98.126(f)(2)).
     For each fluorinated gas production facility that destroys 
fluorinated GHGs, information on why the surrogate is sufficient to 
demonstrate the DE for each fluorinated GHG (40 CFR 98.126(f)(2)).
     For each fluorinated gas production facility that destroys 
fluorinated GHGs, submit a one-time report describing measurements, 
research, or analysis that relate to the formation of products of 
incomplete combustion that are fluorinated GHGs during the destruction 
of fluorinated gases, including methods and results (40 CFR 98.126(i)).
     The report must include the methods and results of any 
measurement or modeling studies, including the products of incomplete 
combustion for which the exhaust stream was analyzed, as well as copies 
of relevant scientific papers, if available, or citations of the 
papers, if they are not (40 CFR 98.126(i)).
    In the 2012 Proposed CBI Determinations, the EPA proposed that 
these four data elements are non-CBI. Although the EPA did not receive 
specific comments on these four proposed determinations, the EPA 
received comments that raised concerns regarding the disclosure of the 
contents of process streams including information that could be 
revealed with the disclosure of these four data elements. The EPA 
concluded that the nature of the information submitted under these data 
elements could vary significantly among reporters and may include 
information related to the contents of process streams. For example, 
some reporters may submit information related to the contents of 
process streams as part of their demonstration of why the surrogate 
compound is sufficient to demonstrate the DE for each fluorinated GHG. 
However, the EPA anticipates that other facilities may submit 
information unrelated to the contents of process streams. In light of 
the above, the EPA

[[Page 73774]]

is not making final confidentiality determinations for these data 
elements. Any confidentiality status of these data elements will be 
evaluated on a case-by-case basis, in accordance with the existing CBI 
regulations in 40 CFR part 2, subpart B.
    We are finalizing a confidentiality determination for the data 
reporting element that was added to 40 CFR 98. 3(c)(4)(iii)(E) since 
proposal; as a result we did not propose a confidentiality 
determination for this data element. This data element specifies that 
if a fluorinated GHG does not have a chemical-specific GWP in Table A-
1, then reporters must ``report the fluorinated GHG group of which that 
fluorinated GHG is a member'' This data reporting element clearly fits 
into the ``Calculation Methodology and Methodological Tier'' Data 
Category'' as it allows the EPA to determine whether the correct method 
was used, or specifically, whether an appropriate GWP was applied. 
Therefore, we are assigning it to this data category and applying the 
categorical determination for this category, which is emission data.
    Lastly, we note that we have already established in a previous 
rulemaking the confidentiality status of the data element in 40 CFR 
98.126(d) that is included in today's final rule. As explained in 
Section II.B.2.b of this preamble, this data element is among the data 
already required to be reported under subpart A, 40 CFR 98.3(c)(8), but 
that we are now requiring its reporting explicitly under subpart L 40 
CFR 98.126(d) for clarity. (This data element is the generically 
identified process for which data were missing, discussed in Section 
II.B.2.b of this preamble.) In 76 FR 30782, we determined that the data 
to be reported under 40 CFR 98.3(c)(8), including the data required 
under the new 40 CFR 98.126(d), are emission data, and therefore are 
not entitled to confidential treatment. Therefore, no separate 
confidentiality determination is necessary due to the addition of 40 
CFR 98.126(d).

B. Public Comments on the Proposed Confidentiality Determinations and 
Responses to Public Comment

    The EPA is finalizing all confidentiality determinations for the 
new and substantially revised data elements as they were proposed. 
Please refer to the preamble for the Proposed Amendments to Subpart L 
for additional information regarding the proposed confidentiality 
determinations. Two commenters noted that the proposed CBI 
determinations were acceptable, given other changes to the rule and the 
transition to reporting by F-GHG groups. For comments and responses 
regarding confidentiality determinations for new and revised data 
elements, please refer to the comment response document in Docket ID. 
No. EPA-HQ-OAR-2009-0927.
    The EPA is also finalizing proposed confidentiality determinations 
for 10 existing data elements. Please see the preamble for the 2012 
Proposed Confidentiality Determinations for additional information 
regarding the proposed confidentiality determinations. We did not 
receive any comments on these determinations.

IV. Impacts of the Final Rule

    The EPA has determined that the cost associated with this final 
action will be $792 in the first year of implementation and $0 in each 
subsequent year, as further summarized below. These costs are related 
to the implementation of the alternative verification approach 
addressing the inputs to emission equations for which disclosure 
concerns were identified. A full discussion of these impacts may be 
found in the memorandum ``Assessment of Cost Impacts of 2015 Inputs 
Proposal--Revisions to Reporting, Recordkeeping, and Verification 
Requirements Under the Greenhouse Gas Reporting Program,'' August 2013, 
available in the EPA's docket number EPA-HQ-OAR-2010-0929. The EPA has 
determined that the other amendments to subpart L and subpart A being 
finalized in this action will not result in an increase in costs. A 
full discussion of the impacts of the other amendments may be found in 
the ``2013 Amendments to the Greenhouse Gas Reporting Rule for the 
Fluorinated Gas Production Source Category Cost Memo'' in docket number 
EPA-HQ-OAR-2009-0927.

A. How were the costs of this final rule estimated?

1. Inputs Verification Tool
    The data elements required to be used for calculating the annual 
GHG emissions values, and the cost associated with collecting these 
data elements, have not changed from the estimate made during the 
original rulemaking process. The time associated with entry of these 
inputs to emission equations into e-GGRT (including into the new IVT) 
is expected to be equivalent to the time originally anticipated for 
data entry. Prior to using IVT, as currently required, reporters must 
use their own calculation tool (e.g., calculator, calculation software) 
to calculate the annual GHG emissions values, using the same sets of 
equations and entering the same data elements that they would enter 
into the tool.
    The EPA does recognize, however, that there may be some time 
associated with learning the new procedures for IVT and we have 
estimated a cost of approximately $66 per facility, or $792 for the 
first year for all 12 subpart L facilities that do not also report 
under subpart O. (The burden and costs for the four facilities that 
report under both subpart O and subpart L are already accounted for in 
the Final Inputs Rule.) During their first session using IVT, reporters 
would need to spend approximately one hour to become familiar with how 
the tool operates within e-GGRT. The requirement to use IVT would not 
result in any change in the respondent activity of entering these data 
into e-GGRT. Once the reporter has become familiar with the tool, the 
EPA does not anticipate any additional burden. The cost includes 
technical, clerical, and managerial labor hours. For further 
information about this cost estimate, refer to the memorandum 
``Assessment of Cost Impacts of 2015 Inputs Final Rule--Revisions to 
Reporting, Recordkeeping, and Verification Requirements Under the 
Greenhouse Gas Reporting Program'' (September 2014) and the supporting 
statement for the information collection request, ``Supporting 
Statement, Environmental Protection Agency: Revisions to Reporting and 
Recordkeeping Requirements, and Final Confidentiality Determinations 
Under the Greenhouse Gas Reporting Program, Office of Management and 
Budget (OMB) Control Number 2060-0629, ICR Number 2300.12,'' both 
available in Docket ID No. EPA-HQ-OAR-2010-0929.

B. Do the final confidentiality determinations change the impacts of 
the final amendments?

    The final confidentiality determinations for the new data elements 
would not affect whether and how data are reported and, therefore, 
would not impose any additional burden on sources. Whether a data 
reporting element is determined to be CBI, not CBI, or emission data, 
the reporting element is reported to the EPA through e-GGRT in the same 
manner.

V. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review and Executive 
Order 13563: Improving Regulation and Regulatory Review

    This action is not a ``significant regulatory action'' under the 
terms of

[[Page 73775]]

Executive Order 12866 (58 FR 51735, October 4, 1993) and is therefore 
not subject to review under Executive Orders 12866 and 13563 (76 FR 
3821, January 21, 2011). This action (1) amends certain provisions of 
the Fluorinated Gas Production source category, including finalizing an 
alternative verification approach for this source category in lieu of 
collecting certain data elements for which the EPA has identified 
disclosure concerns and for which the reporting deadline was deferred 
until March 31, 2015, (2) adds chemical-specific and default GWPs for a 
number of fluorinated greenhouse gases and fluorinated heat transfer 
fluids to the general provisions of the Greenhouse Gas Reporting Rule, 
and (3) finalizes confidentiality determinations for certain reporting 
requirements of the Fluorinated Gas Production source category.

B. Paperwork Reduction Act

    The Office of Management and Budget (OMB) has approved the 
information collection requirements for 40 CFR part 98 under the 
provisions of the Paperwork Reduction Act, 44 U.S.C. 3501 et seq., and 
has assigned OMB control numbers 2060-0629 and 2060-0650, respectively, 
and ICR 2300.10. The OMB control numbers for the EPA's regulations in 
40 CFR are listed in 40 CFR part 9. The revisions in this final action 
result in a small increase in burden, and the ICR will be modified to 
reflect this burden change. Further information on the EPA's assessment 
on the impact on burden can be found in the analyses ``Assessment of 
Cost Impacts of 2015 Inputs Proposal--Revisions to Reporting, 
Recordkeeping, and Verification Requirements Under the Greenhouse Gas 
Reporting Program,'' August 2013, available in the EPA's Docket ID No. 
EPA-HQ-OAR-2010-0929, in the ``2013 Amendments to the Greenhouse Gas 
Reporting Rule for the Fluorinated Gas Production Source Category Cost 
Memo'' and ``Economic Analysis of Adding Chemical-Specific and Default 
GWPs to Table A-1'', both in docket number EPA-HQ-OAR-2009-0927.
    This action (1) amends certain provisions of the Fluorinated Gas 
Production source category, including finalizing an alternative 
verification approach for this source category in lieu of collecting 
certain data elements for which the EPA has identified disclosure 
concerns and for which the reporting deadline was deferred until March 
31, 2015, (2) adds chemical-specific and default GWPs for a number of 
fluorinated greenhouse gases and fluorinated heat transfer fluids to 
the general provisions of the Greenhouse Gas Reporting Rule, and (3) 
finalizes confidentiality determinations for certain reporting 
requirements of the Fluorinated Gas Production source category.

C. Regulatory Flexibility Act (RFA)

    The RFA generally requires an agency to prepare a regulatory 
flexibility analysis of any rule subject to notice and comment 
rulemaking requirements under the Administrative Procedure Act or any 
other statute unless the agency certifies that the rule will not have a 
significant economic impact on a substantial number of small entities. 
Small entities include small businesses, small organizations, and small 
governmental jurisdictions.
    For purposes of assessing the impact of this final rule on small 
entities, small entity is defined as: (1) A small business as defined 
by the Small Business Administration's regulations at 13 CFR 121.201; 
(2) a small governmental jurisdiction that is a government of a city, 
county, town, school district or special district with a population of 
less than 50,000; and (3) a small organization that is any not-for-
profit enterprise that is independently owned and operated and is not 
dominant in its field.
    After considering the economic impacts of today's final rule on 
small entities, I certify that this action will not have a significant 
economic impact on a substantial number of small entities. The addition 
of chemical-specific and default GWPs to subpart A is not expected to 
affect the applicability of the rule to small entities. The amendments 
to subpart L (including the requirement to enter inputs to subpart L 
emission equations into IVT) affect fluorinated gas producers, none of 
which are small entities.
    Although this final rule will not have a significant economic 
impact on a substantial number of small entities, the EPA nonetheless 
has tried to reduce the impact of Part 98 on small entities. For 
example, the EPA conducted several meetings with industry associations 
to discuss regulatory options and the corresponding burden on industry, 
such as recordkeeping and reporting. The EPA continues to conduct 
significant outreach on Part 98 and maintains an ``open door'' policy 
for stakeholders to help inform the EPA's understanding of key issues 
for the industries.

D. Unfunded Mandates Reform Act (UMRA)

    The final rule amendments and confidentiality determinations do not 
contain a federal mandate that may result in expenditures of $100 
million or more for state, local, and tribal governments, in the 
aggregate, or the private sector in any one year. Thus, the final rule 
amendments and confidentiality determinations are not subject to the 
requirements of Sections 202 and 205 of the UMRA.
    This final rule is also not subject to the requirements of Section 
203 of UMRA because it contains no regulatory requirements that might 
significantly or uniquely affect small governments. Facilities and 
suppliers subject to the rule include fluorinated gas producers, 
electronics manufacturers, magnesium producers and processors, 
manufacturers and users of electrical equipment, importers and 
exporters of fluorinated GHGs in bulk, and importers and exporters of 
pre-charged equipment and closed-cell foams that contain fluorinated 
GHGs. None of the facilities currently known to undertake these 
activities is owned by a small government. Therefore, this action is 
not subject to the requirements of Section 203 of the UMRA.

E. Executive Order 13132: Federalism

    This action does not have federalism implications. It will not have 
substantial direct effects on the states, on the relationship between 
the national government and the states, or on the distribution of power 
and responsibilities among the various levels of government, as 
specified in Executive Order 13132. For a more detailed discussion 
about how Part 98 relates to existing state programs, please see 
Section II of the preamble to the final Greenhouse Gas reporting rule 
(74 FR 56266, October 30, 2009).
    The final amendments and confidentiality determinations apply 
directly to fluorinated gas producers, electronics manufacturers, 
magnesium producers and processors, manufacturers and users of 
electrical equipment, importers and exporters of fluorinated GHGs in 
bulk, and importers and exporters of pre-charged equipment and closed-
cell foams that contain fluorinated GHGs. They do not apply to 
governmental entities unless the government entity owns a facility that 
falls into one of these categories and that emits or supplies 
fluorinated GHGs above threshold levels. We are not aware of any 
governmental entities that would be affected. This regulation also does 
not limit the power of states or localities to collect GHG data and/or 
regulate GHG emissions. Thus, Executive Order 13132 does not apply to 
this action.
    Although Section 6 of Executive Order 13132 does not apply to this

[[Page 73776]]

action, the EPA did consult with state and local officials or 
representatives of state and local governments in developing subpart L, 
promulgated on December 1, 2010. A summary of the EPA's consultations 
with state and local governments is provided in Section VIII.E of the 
preamble to the 2009 final rule.
    In the spirit of Executive Order 13132, and consistent with EPA 
policy to promote communications between the EPA and state and local 
governments, the EPA specifically solicited comment on the proposed 
action from state and local officials. We received no comments from 
state and local officials on the proposed rule.

F. Executive Order 13175: Consultation and Coordination With Indian 
Tribal Governments

    This action does not have tribal implications, as specified in 
Executive Order 13175 (65 FR 67249, November 9, 2000). The final 
amendments and confidentiality determinations apply to fluorinated gas 
producers, electronics manufacturers, magnesium producers and 
processors, manufacturers and users of electrical equipment, importers 
and exporters of fluorinated GHGs in bulk, and importers and exporters 
of pre-charged equipment and closed-cell foams that contain fluorinated 
GHGs. They will not have tribal implications unless the tribal entity 
owns a facility that falls into one of these categories and that emits 
or supplies fluorinated GHGs above threshold levels. We are not aware 
of any tribal facilities that will be affected. Thus, Executive Order 
13175 does not apply to this action.

G. Executive Order 13045: Protection of Children From Environmental 
Health Risks and Safety Risks

    The EPA interprets Executive Order 13045 (62 FR 19885, April 23, 
1997) as applying only to those regulatory actions that concern health 
or safety risks, such that the analysis required under Section 5-501 of 
the Executive Order has the potential to influence the regulation. This 
action is not subject to Executive Order 13045 because it does not 
establish an environmental standard intended to mitigate health or 
safety risks.

H. Executive Order 13211: Actions That Significantly Affect Energy 
Supply, Distribution, or Use

    This action is not subject to Executive Order 13211 (66 FR 28355, 
May 22, 2001), because it is not a significant regulatory action under 
Executive Order 12866.

I. National Technology Transfer and Advancement Act

    Section 12(d) of the National Technology Transfer and Advancement 
Act of 1995 (NTTAA), Public Law 104-113 (15 U.S.C. 272 note), directs 
the EPA to use voluntary consensus standards in its regulatory 
activities unless to do so would be inconsistent with applicable law or 
otherwise impractical. Voluntary consensus standards are technical 
standards (e.g., materials specifications, test methods, sampling 
procedures, and business practices) that are developed or adopted by 
voluntary consensus standards bodies. NTTAA directs the EPA to provide 
Congress, through OMB, explanations when the Agency decides not to use 
available and applicable voluntary consensus standards.
    This final rule does not involve any new technical standards. 
Therefore, the EPA did not consider the use of specific voluntary 
consensus standards.

J. Executive Order 12898: Federal Actions To Address Environmental 
Justice in Minority Populations and Low-Income Populations

    Executive Order 12898 (59 FR 7629, February 16, 1994) establishes 
Federal executive policy on environmental justice. Its main provision 
directs Federal agencies, to the greatest extent practicable and 
permitted by law, to make environmental justice part of their mission 
by identifying and addressing, as appropriate, disproportionately high 
and adverse human health or environmental effects of their programs, 
policies, and activities on minority populations and low-income 
populations in the United States.
    The EPA has determined that this final rule will not have 
disproportionately high and adverse human health or environmental 
effects on minority or low-income populations. It does not affect the 
level of protection provided to human health or the environment because 
it is a rule addressing information collection and reporting 
procedures.

K. Congressional Review Act

    The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
Small Business Regulatory Enforcement Fairness Act of 1996, generally 
provides that before a rule may take effect, the agency promulgating 
the rule must submit a rule report, which includes a copy of the rule, 
to each House of the Congress and to the Comptroller General of the 
United States. The EPA will submit a report containing this rule and 
other required information to the U.S. Senate, the U.S. House of 
Representatives, and the Comptroller General of the United States prior 
to publication of the rule in the Federal Register. A major rule cannot 
take effect until 60 days after it is published in the Federal 
Register. This action is not a ``major rule'' as defined by 5 U.S.C. 
804(2). This rule will be effective on January 1, 2015.

List of Subjects 40 CFR Part 98

    Environmental protection, Administrative practice and procedure, 
Greenhouse gases, Reporting and recordkeeping requirements.

    Dated: November 25, 2014.
Gina McCarthy,
Administrator.
    For the reasons stated in the preamble, part 98 of title 40, 
chapter I, of the Code of Federal Regulations is amended as follows:

PART 98--MANDATORY GREENHOUSE GAS REPORTING

0
1. The authority citation for part 98 continues to read as follows:

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

Subpart A--General Provisions

0
2. Section 98.2 is amended by revising paragraphs (b)(1) and (4) and 
(f)(1) to read as follows:

Sec.  98.2  Who must report?

* * * * *
    (b) * * *
    (1) Calculate the annual emissions of CO2, 
CH4, N2O, and each fluorinated GHG in metric tons 
from all applicable source categories listed in paragraph (a)(2) of 
this section. The GHG emissions shall be calculated using the 
calculation methodologies specified in each applicable subpart and 
available company records.
* * * * *
    (4) Sum the emissions estimates from paragraphs (b)(1), (b)(2), and 
(b)(3) of this section for each GHG and calculate metric tons of 
CO2e using Equation A-1 of this section.

[[Page 73777]]

[GRAPHIC] [TIFF OMITTED] TR11DE14.000

Where:

CO2e = Carbon dioxide equivalent, metric tons/year.
GHGi = Mass emissions of each greenhouse gas, metric 
tons/year.
GWPi = Global warming potential for each greenhouse gas 
from Table A-1 of this subpart.
n = The number of greenhouse gases emitted.
* * * * *
    (f) * * *
    (1) Calculate the mass in metric tons per year of CO2, 
N2O, and each fluorinated GHG that is imported and the mass 
in metric tons per year of CO2, N2O, and each 
fluorinated GHG that is exported during the year.
* * * * *

0
3. Section 98.3 is amended by:
0
a. Revising paragraphs (c)(4)(iii)(E) and (F) and (c)(5)(i) and (ii);
0
b. Removing and reserving paragraph (c)(4)(vi);
0
c. Revising paragraph (k);
0
d. Revising paragraphs (l) introductory text, (1)(1), and (1)(2) 
introductory text;
0
e. Revising paragraphs (l)(2)(i), (l)(2)(ii)(C) through (E), and 
(l)(2)(iii).
    The revisions read as follows:

Sec.  98.3  What are the general monitoring, reporting, recordkeeping, 
and verification requirements of this part?

* * * * *
    (c) * * *
    (4) * * *
    (iii) * * *
    (E) Each fluorinated GHG (as defined in Sec.  98.6), except 
fluorinated gas production facilities must comply with Sec.  98.126(a) 
rather than this paragraph (c)(4)(iii)(E). If a fluorinated GHG does 
not have a chemical-specific GWP in Table A-1 of this subpart, identify 
and report the fluorinated GHG group of which that fluorinated GHG is a 
member.
    (F) For electronics manufacturing (as defined in Sec.  98.90), each 
fluorinated heat transfer fluid (as defined in Sec.  98.98) that is not 
also a fluorinated GHG as specified under (c)(4)(iii)(E) of this 
section. If a fluorinated heat transfer fluid does not have a chemical-
specific GWP in Table A-1 of this subpart, identify and report the 
fluorinated GHG group of which that fluorinated heat transfer fluid is 
a member.
* * * * *
    (5) * * *
    (i) Total quantity of GHG aggregated for all GHG from all 
applicable supply categories in Table A-5 of this subpart and expressed 
in metric tons of CO2e calculated using Equation A-1 of this 
subpart.
    (ii) Quantity of each GHG from each applicable supply category in 
Table A-5 to this subpart, expressed in metric tons of each GHG.
* * * * *
    (k) Revised global warming potentials and special provisions for 
reporting year 2013 and subsequent reporting years. This paragraph (k) 
applies to owners or operators of facilities or suppliers that first 
become subject to any subpart of part 98 solely due to an amendment to 
Table A-1 of this subpart.
    (1) A facility or supplier that first becomes subject to part 98 
due to a change in the GWP for one or more compounds in Table A-1 of 
this subpart, Global Warming Potentials, is not required to submit an 
annual GHG report for the reporting year during which the change in 
GWPs is published.
    (2) A facility or supplier that was already subject to one or more 
subparts of part 98 but becomes subject to one or more additional 
subparts due to a change in the GWP for one or more compounds in Table 
A-1 of this subpart, is not required to include those subparts to which 
the facility is subject only due to the change in the GWP in the annual 
GHG report submitted for the reporting year during which the change in 
GWPs is published.
    (3) Starting on January 1 of the year after the year during which 
the change in GWPs is published, facilities or suppliers identified in 
paragraphs (k)(1) or (2) of this section must start monitoring and 
collecting GHG data in compliance with the applicable subparts of part 
98 to which the facility is subject due to the change in the GWP for 
the annual greenhouse gas report for that reporting year, which is due 
by March 31 of the following calendar year.
    (4) A change in the GWP for one or more compounds includes the 
addition to Table A-1 of this subpart of either a chemical-specific or 
a default GWP that applies to a compound to which no chemical-specific 
GWP in Table A-1 of this subpart previously applied.
    (l) Special provision for best available monitoring methods in 2014 
and subsequent years. This paragraph (l) applies to owners or operators 
of facilities or suppliers that first become subject to any subpart of 
part 98 due to an amendment to Table A-1 of this subpart, Global 
Warming Potentials.
    (1) Best available monitoring methods. From January 1 to March 31 
of the year after the year during which the change in GWPs is 
published, owners or operators subject to this paragraph (l) may use 
best available monitoring methods for any parameter (e.g., fuel use, 
feedstock rates) that cannot reasonably be measured according to the 
monitoring and QA/QC requirements of a relevant subpart. The owner or 
operator must use the calculation methodologies and equations in the 
``Calculating GHG Emissions'' sections of each relevant subpart, but 
may use the best available monitoring method for any parameter for 
which it is not reasonably feasible to acquire, install, and operate a 
required piece of monitoring equipment by January 1 of the year after 
the year during which the change in GWPs is published. Starting no 
later than April 1 of the year after the year during which the change 
in GWPs is published, the owner or operator must discontinue using best 
available methods and begin following all applicable monitoring and QA/
QC requirements of this part, except as provided in paragraph (l)(2) of 
this section. Best available monitoring methods means any of the 
following methods:
* * * * *
    (2) Requests for extension of the use of best available monitoring 
methods. The owner or operator may submit a request to the 
Administrator to use one or more best available monitoring methods 
beyond March 31 of the year after the year during which the change in 
GWPs is published.
    (i) Timing of request. The extension request must be submitted to 
EPA no later than January 31 of the year after the year during which 
the change in GWPs is published.
    (ii) * * *
    (C) A description of the reasons that the needed equipment could 
not be obtained and installed before April 1 of the year after the year 
during which the change in GWPs is published.
    (D) If the reason for the extension is that the equipment cannot be 
purchased and delivered by April 1 of the year after the year during 
which the change in GWPs is published, include supporting documentation 
such as the date the monitoring equipment was ordered, investigation of 
alternative suppliers and the dates by which alternative vendors 
promised delivery, backorder notices or unexpected delays,

[[Page 73778]]

descriptions of actions taken to expedite delivery, and the current 
expected date of delivery.
    (E) If the reason for the extension is that the equipment cannot be 
installed without a process unit shutdown, include supporting 
documentation demonstrating that it is not practicable to isolate the 
equipment and install the monitoring instrument without a full process 
unit shutdown. Include the date of the most recent process unit 
shutdown, the frequency of shutdowns for this process unit, and the 
date of the next planned shutdown during which the monitoring equipment 
can be installed. If there has been a shutdown or if there is a planned 
process unit shutdown between November 29 of the year during which the 
change in GWPs is published and April 1 of the year after the year 
during which the change in GWPs is published, include a justification 
of why the equipment could not be obtained and installed during that 
shutdown.
* * * * *
    (iii) Approval criteria. To obtain approval, the owner or operator 
must demonstrate to the Administrator's satisfaction that it is not 
reasonably feasible to acquire, install, and operate a required piece 
of monitoring equipment by April 1 of the year after the year during 
which the change in GWPs is published. The use of best available 
methods under this paragraph (l) will not be approved beyond December 
31 of the year after the year during which the change in GWPs is 
published.

0
4. Section 98.5 is amended by revising paragraph (b) to read as 
follows:

Sec.  98.5  How is the report submitted?

* * * * *
    (b) For reporting year 2014 and thereafter, unless a later year is 
specified in the applicable recordkeeping section, you must enter into 
verification software specified by the Administrator the data specified 
in the verification software records provision in each applicable 
recordkeeping section. For each data element entered into the 
verification software, if the software produces a warning message for 
the data value and you elect not to revise the data value, you may 
provide an explanation in the verification software of why the data 
value is not being revised.

0
5. Section 98.6 is amended by:
0
a. Adding, in alphabetical order, the definition for 
Carbonofluoridates;
0
b. Adding, in alphabetical order, the definition for Fluorinated 
acetates;
0
c. Adding, in alphabetical order, the definition for Fluorinated 
alcohols other than fluorotelomer alcohols;
0
d. Adding, in alphabetical order, the definition for Fluorinated 
formates;
0
e. Adding, in alphabetical order, the definition for Fluorinated GHG 
group;
0
f. Adding, in alphabetical order, the definition for Fluorotelomer 
alcohols;
0
g. Adding, in alphabetical order, the definition for Fully fluorinated 
GHGs;
0
h. Revising the definition for Global warming potential;
0
i. Adding, in alphabetical order, the definition for Other fluorinated 
GHGs;
0
j. Adding, in alphabetical order, the definition for Saturated 
hydrochlorofluoroethers (HCFEs);
0
k. Adding, in alphabetical order, the definition for Saturated 
hydrofluorocarbons (HFCs);
0
l. Adding, in alphabetical order, the definition for Saturated 
hydrofluoroethers (HFEs);
0
m. Adding, in alphabetical order, the definition for Unsaturated 
halogenated ethers.
0
n. Adding, in alphabetical order, the definition for Unsaturated 
hydrochlorofluorocarbons (HCFCs);
0
o. Adding, in alphabetical order, the definition for Unsaturated 
hydrofluorocarbons (HFCs); and
0
p. Adding, in alphabetical order, the definition for Unsaturated 
perfluorocarbons (PFCs).
    The revisions and additions read as follows:

Sec.  98.6  Definitions.

* * * * *
    Carbonofluoridates means fluorinated GHGs that are composed of a -
OCF(O) group (carbonyl group with a single-bonded oxygen atom and a 
fluorine atom) that is linked on the single-bonded oxygen to another 
hydrocarbon group in which one or more of the hydrogen atoms may be 
replaced by fluorine atoms.
* * * * *
    Fluorinated acetates means fluorinated GHGs that are composed of an 
acetate group with one or more valence locations on the methyl group of 
the acetate occupied by fluorine atoms (e.g., CFH2C(O)O-, 
CF2HC(O)O-) and, linked to the single-bonded oxygen of the 
acetate group, another hydrocarbon group in which one or more of the 
hydrogen atoms may be replaced by fluorine atoms.
    Fluorinated alcohols other than fluorotelomer alcohols means 
fluorinated GHGs that include an alcohol functional group (-OH) and 
that do not meet the definition of fluorotelomer alcohols.
    Fluorinated formates means fluorinated GHGs that are composed of a 
formate group -OCH(O) (carbonyl group with a single-bonded oxygen, and 
with a hydrogen atom) that is linked on the single-bonded oxygen atom 
to a hydrocarbon group in which one or more of the hydrogen atoms in 
the hydrocarbon group is replaced by fluorine atoms; the typical 
formula for fluorinated formates is FnROCH(O).
* * * * *
    Fluorinated greenhouse gas (GHG) group means one of the following 
sets of fluorinated GHGs: Fully fluorinated GHGs; saturated 
hydrofluorocarbons with 2 or fewer carbon-hydrogen bonds; saturated 
hydrofluorocarbons with 3 or more carbon-hydrogen bonds; saturated 
hydrofluoroethers and hydrochlorofluoroethers with 1 carbon-hydrogen 
bond; saturated hydrofluoroethers and hydrochlorofluoroethers with 2 
carbon-hydrogen bonds; saturated hydrofluoroethers and 
hydrochlorofluoroethers with 3 or more carbon-hydrogen bonds; 
fluorinated formates; fluorinated acetates, carbonofluoridates, and 
fluorinated alcohols other than fluorotelomer alcohols; unsaturated 
PFCs, unsaturated HFCs, unsaturated HCFCs, unsaturated halogenated 
ethers, unsaturated halogenated esters, fluorinated aldehydes, and 
fluorinated ketones; fluorotelomer alcohols; fluorinated GHGs with 
carbon-iodine bonds; or other fluorinated GHGs.
    Fluorotelomer alcohols means fluorinated GHGs with the chemical 
formula CnF2n+1CH2CH2OH.
* * * * *
    Fully fluorinated GHGs means fluorinated GHGs that contain only 
single bonds and in which all available valence locations are filled by 
fluorine atoms. This includes but is not limited to: Saturated 
perfluorocarbons; SF6; NF3; 
SF5CF3; fully fluorinated linear, branched, and 
cyclic alkanes; fully fluorinated ethers; fully fluorinated tertiary 
amines; fully fluorinated aminoethers; and perfluoropolyethers.
* * * * *
    Global warming potential or GWP means the ratio of the time-
integrated radiative forcing from the instantaneous release of one 
kilogram of a trace substance relative to that of one kilogram of a 
reference gas (i.e., CO2). GWPs for each greenhouse gas are 
provided in Table A-1 of this subpart. For purposes of the calculations 
in this part, if the GHG has a chemical-specific GWP listed in Table A-
1, use that GWP. Otherwise, use the default GWP provided in Table A-1 
for the

[[Page 73779]]

fluorinated GHG group of which the GHG is a member.
* * * * *
    Other fluorinated GHGs means fluorinated GHGs that are none of the 
following: Fully fluorinated GHGs; saturated hydrofluorocarbons with 2 
or fewer carbon-hydrogen bonds; saturated hydrofluorocarbons with 3 or 
more carbon-hydrogen bonds; saturated hydrofluoroethers and 
hydrochlorofluoroethers with 1 carbon-hydrogen bond; saturated 
hydrofluoroethers and hydrochlorofluoroethers with 2 carbon-hydrogen 
bonds; saturated hydrofluoroethers and hydrochlorofluoroethers with 3 
or more carbon-hydrogen bonds; fluorinated formates; fluorinated 
acetates, carbonofluoridates, and fluorinated alcohols other than 
fluorotelomer alcohols; unsaturated PFCs, unsaturated HFCs, unsaturated 
HCFCs, unsaturated halogenated ethers, unsaturated halogenated esters, 
fluorinated aldehydes, and fluorinated ketones; fluorotelomer alcohols; 
or fluorinated GHGs with carbon-iodine bonds.
* * * * *
    Saturated hydrochlorofluoroethers (HCFEs) means fluorinated GHGs in 
which two hydrocarbon groups are linked by an oxygen atom; in which two 
or more, but not all, of the hydrogen atoms in the hydrocarbon groups 
have been replaced by fluorine atoms and chlorine atoms; and which 
contain only single bonds.
    Saturated hydrofluorocarbons (HFCs) means fluorinated GHGs that are 
hydrofluorocarbons and that contain only single bonds.
    Saturated hydrofluoroethers (HFEs) means fluorinated GHGs in which 
two hydrocarbon groups are linked by an oxygen atom; in which one or 
more, but not all, of the hydrogen atoms in the hydrocarbon groups have 
been replaced by fluorine atoms; and which contain only single bonds.
* * * * *
    Unsaturated halogenated ethers means fluorinated GHGs in which two 
hydrocarbon groups are linked by an oxygen atom; in which one or more 
of the hydrogen atoms in the hydrocarbon groups have been replaced by 
fluorine atoms; and which contain one or more bonds that are not single 
bonds. Unsaturated ethers include unsaturated HFEs.
    Unsaturated hydrochlorofluorocarbons (HCFCs) means fluorinated GHGs 
that contain only carbon, chlorine, fluorine, and hydrogen and that 
contain one or more bonds that are not single bonds.
    Unsaturated hydrofluorocarbons (HFCs) means fluorinated GHGs that 
are hydrofluorocarbons and that contain one or more bonds that are not 
single bonds.
    Unsaturated perfluorocarbons (PFCs) means fluorinated GHGs that are 
perfluorocarbons and that contain one or more bonds that are not single 
bonds.
* * * * *

0
6. Table A-1 to Subpart A is revised to read as follows:

                          Table A-1 to Subpart A of Part 98--Global Warming Potentials
                                             [100-Year Time Horizon]
----------------------------------------------------------------------------------------------------------------
                                                                                                      Global
                                                                                                      warming
                     Name                           CAS No.             Chemical formula             potential
                                                                                                     (100 yr.)
----------------------------------------------------------------------------------------------------------------
                                             Chemical-Specific GWPs
----------------------------------------------------------------------------------------------------------------
Carbon dioxide................................        124-38-9  CO2.............................               1
Methane.......................................         74-82-8  CH4.............................          \a\ 25
Nitrous oxide.................................      10024-97-2  N2O.............................         \a\ 298
----------------------------------------------------------------------------------------------------------------
                                             Fully Fluorinated GHGs
----------------------------------------------------------------------------------------------------------------
Sulfur hexafluoride...........................       2551-62-4  SF6.............................      \a\ 22,800
Trifluoromethyl sulphur pentafluoride.........        373-80-8  SF5CF3..........................          17,700
Nitrogen trifluoride..........................       7783-54-2  NF3.............................          17,200
PFC-14 (Perfluoromethane).....................         75-73-0  CF4.............................       \a\ 7,390
PFC-116 (Perfluoroethane).....................         76-16-4  C2F6............................      \a\ 12,200
PFC-218 (Perfluoropropane)....................         76-19-7  C3F8............................       \a\ 8,830
Perfluorocyclopropane.........................        931-91-9  C-C3F6..........................          17,340
PFC-3-1-10 (Perfluorobutane)..................        355-25-9  C4F10...........................       \a\ 8,860
PFC-318 (Perfluorocyclobutane)................        115-25-3  C-C4F8..........................      \a\ 10,300
PFC-4-1-12 (Perfluoropentane).................        678-26-2  C5F12...........................       \a\ 9,160
PFC-5-1-14 (Perfluorohexane, FC-72)...........        355-42-0  C6F14...........................       \a\ 9,300
PFC-6-1-12....................................        335-57-9  C7F16; CF3(CF2)5CF3.............       \b\ 7,820
PFC-7-1-18....................................        307-34-6  C8F18; CF3(CF2)6CF3.............       \b\ 7,620
PFC-9-1-18....................................        306-94-5  C10F18..........................           7,500
PFPMIE (HT-70)................................              NA  CF3OCF(CF3)CF2OCF2OCF3..........          10,300
Perfluorodecalin (cis)........................      60433-11-6  Z-C10F18........................       \b\ 7,236
Perfluorodecalin (trans)......................      60433-12-7  E-C10F18........................       \b\ 6,288
----------------------------------------------------------------------------------------------------------------
                   Saturated Hydrofluorocarbons (HFCs) With Two or Fewer Carbon-Hydrogen Bonds
----------------------------------------------------------------------------------------------------------------
HFC-23........................................         75-46-7  CHF3............................      \a\ 14,800
HFC-32........................................         75-10-5  CH2F2...........................         \a\ 675
HFC-125.......................................        354-33-6  C2HF5...........................       \a\ 3,500
HFC-134.......................................        359-35-3  C2H2F4..........................       \a\ 1,100
HFC-134a......................................        811-97-2  CH2FCF3.........................       \a\ 1,430
HFC-227ca.....................................       2252-84-8  CF3CF2CHF2......................        \b\ 2640
HFC-227ea.....................................        431-89-0  C3HF7...........................       \a\ 3,220
HFC-236cb.....................................        677-56-5  CH2FCF2CF3......................           1,340
HFC-236ea.....................................        431-63-0  CHF2CHFCF3......................           1,370

[[Page 73780]]

 
HFC-236fa.....................................        690-39-1  C3H2F6..........................       \a\ 9,810
HFC-329p......................................        375-17-7  CHF2CF2CF2CF3...................        \b\ 2360
HFC-43-10mee..................................     138495-42-8  CF3CFHCFHCF2CF3.................       \a\ 1,640
----------------------------------------------------------------------------------------------------------------
                  Saturated Hydrofluorocarbons (HFCs) With Three or More Carbon-Hydrogen Bonds
----------------------------------------------------------------------------------------------------------------
HFC-41........................................        593-53-3  CH3F............................          \a\ 92
HFC-143.......................................        430-66-0  C2H3F3..........................         \a\ 353
HFC-143a......................................        420-46-2  C2H3F3..........................       \a\ 4,470
HFC-152.......................................        624-72-6  CH2FCH2F........................              53
HFC-152a......................................         75-37-6  CH3CHF2.........................         \a\ 124
HFC-161.......................................        353-36-6  CH3CH2F.........................              12
HFC-245ca.....................................        679-86-7  C3H3F5..........................         \a\ 693
HFC-245cb.....................................       1814-88-6  CF3CF2CH3.......................        \b\ 4620
HFC-245ea.....................................      24270-66-4  CHF2CHFCHF2.....................         \b\ 235
HFC-245eb.....................................        431-31-2  CH2FCHFCF3......................         \b\ 290
HFC-245fa.....................................        460-73-1  CHF2CH2CF3......................           1,030
HFC-263fb.....................................        421-07-8  CH3CH2CF3.......................          \b\ 76
HFC-272ca.....................................        420-45-1  CH3CF2CH3.......................         \b\ 144
HFC-365mfc....................................        406-58-6  CH3CF2CH2CF3....................             794
----------------------------------------------------------------------------------------------------------------
      Saturated Hydrofluoroethers (HFEs) and Hydrochlorofluoroethers (HCFEs) With One Carbon-Hydrogen Bond
----------------------------------------------------------------------------------------------------------------
HFE-125.......................................       3822-68-2  CHF2OCF3........................          14,900
HFE-227ea.....................................       2356-62-9  CF3CHFOCF3......................           1,540
HFE-329mcc2...................................     134769-21-4  CF3CF2OCF2CHF2..................             919
HFE-329me3....................................     428454-68-6  CF3CFHCF2OCF3...................       \b\ 4,550
1,1,1,2,2,3,3-Heptafluoro-3-(1,2,2,2-                3330-15-2  CF3CF2CF2OCHFCF3................       \b\ 6,490
 tetrafluoroethoxy)-propane.
----------------------------------------------------------------------------------------------------------------
                             Saturated HFEs and HCFEs With Two Carbon-Hydrogen Bonds
----------------------------------------------------------------------------------------------------------------
HFE-134 (HG-00)...............................       1691-17-4  CHF2OCHF2.......................           6,320
HFE-236ca.....................................      32778-11-3  CHF2OCF2CHF2....................       \b\ 4,240
HFE-236ca12 (HG-10)...........................      78522-47-1  CHF2OCF2OCHF2...................           2,800
HFE-236ea2 (Desflurane).......................      57041-67-5  CHF2OCHFCF3.....................             989
HFE-236fa.....................................      20193-67-3  CF3CH2OCF3......................             487
HFE-338mcf2...................................     156053-88-2  CF3CF2OCH2CF3...................             552
HFE-338mmz1...................................      26103-08-2  CHF2OCH(CF3)2...................             380
HFE-338pcc13 (HG-01)..........................     188690-78-0  CHF2OCF2CF2OCHF2................           1,500
HFE-43-10pccc (H-Galden 1040x, HG-11).........        E1730133  CHF2OCF2OC2F4OCHF2..............           1,870
HCFE-235ca2 (Enflurane).......................      13838-16-9  CHF2OCF2CHFCl...................         \b\ 583
HCFE-235da2 (Isoflurane)......................      26675-46-7  CHF2OCHClCF3....................             350
HG-02.........................................     205367-61-9  HF2C-(OCF2CF2)2-OCF2H...........       \b\ 3,825
HG-03.........................................     173350-37-3  HF2C-(OCF2CF2)3-OCF2H...........       \b\ 3,670
HG-20.........................................     249932-25-0  HF2C-(OCF2)2-OCF2H..............       \b\ 5,300
HG-21.........................................     249932-26-1  HF2C-OCF2CF2OCF2OCF2O-CF2H......       \b\ 3,890
HG-30.........................................     188690-77-9  HF2C-(OCF2)3-OCF2H..............       \b\ 7,330
1,1,3,3,4,4,6,6,7,7,9,9,10,10,12,12,13,13,15,1     173350-38-4  HCF2O(CF2CF2O)4CF2H.............       \b\ 3,630
 5-eicosafluoro-2,5,8,11,14-
 Pentaoxapentadecane.
1,1,2-Trifluoro-2-(trifluoromethoxy)-ethane...      84011-06-3  CHF2CHFOCF3.....................       \b\ 1,240
Trifluoro(fluoromethoxy)methane...............       2261-01-0  CH2FOCF3........................         \b\ 751
----------------------------------------------------------------------------------------------------------------
                        Saturated HFEs and HCFEs With Three or More Carbon-Hydrogen Bonds
----------------------------------------------------------------------------------------------------------------
HFE-143a......................................        421-14-7  CH3OCF3.........................             756
HFE-245cb2....................................      22410-44-2  CH3OCF2CF3......................             708
HFE-245fa1....................................      84011-15-4  CHF2CH2OCF3.....................             286
HFE-245fa2....................................       1885-48-9  CHF2OCH2CF3.....................             659
HFE-254cb2....................................        425-88-7  CH3OCF2CHF2.....................             359
HFE-263fb2....................................        460-43-5  CF3CH2OCH3......................              11
HFE-263m1; R-E-143a...........................        690-22-2  CF3OCH2CH3......................          \b\ 29
HFE-347mcc3 (HFE-7000)........................        375-03-1  CH3OCF2CF2CF3...................             575
HFE-347mcf2...................................     171182-95-9  CF3CF2OCH2CHF2..................             374
HFE-347mmy1...................................      22052-84-2  CH3OCF(CF3)2....................             343
HFE-347mmz1 (Sevoflurane).....................      28523-86-6  (CF3)2CHOCH2F...................         \c\ 216
HFE-347pcf2...................................        406-78-0  CHF2CF2OCH2CF3..................             580
HFE-356mec3...................................        382-34-3  CH3OCF2CHFCF3...................             101
HFE-356mff2...................................        333-36-8  CF3CH2OCH2CF3...................          \b\ 17

[[Page 73781]]

 
HFE-356mmz1...................................      13171-18-1  (CF3)2CHOCH3....................              27
HFE-356pcc3...................................     160620-20-2  CH3OCF2CF2CHF2..................             110
HFE-356pcf2...................................      50807-77-7  CHF2CH2OCF2CHF2.................             265
HFE-356pcf3...................................      35042-99-0  CHF2OCH2CF2CHF2.................             502
HFE-365mcf2...................................      22052-81-9  CF3CF2OCH2CH3...................          \b\ 58
HFE-365mcf3...................................        378-16-5  CF3CF2CH2OCH3...................              11
HFE-374pc2....................................        512-51-6  CH3CH2OCF2CHF2..................             557
HFE-449s1 (HFE-7100) Chemical blend...........     163702-07-6  C4F9OCH3........................             297
                                                   163702-08-7  (CF3)2CFCF2OCH3.................
HFE-569sf2 (HFE-7200) Chemical blend..........     163702-05-4  C4F9OC2H5.......................              59
                                                   163702-06-5  (CF3)2CFCF2OC2H5................
HG'-01........................................      73287-23-7  CH3OCF2CF2OCH3..................         \b\ 222
HG'-02........................................     485399-46-0  CH3O(CF2CF2O)2CH3...............         \b\ 236
HG'-03........................................     485399-48-2  CH3O(CF2CF2O)3CH3...............         \b\ 221
Difluoro(methoxy)methane......................        359-15-9  CH3OCHF2........................         \b\ 144
2-Chloro-1,1,2-trifluoro-1-methoxyethane......        425-87-6  CH3OCF2CHFCl....................         \b\ 122
1-Ethoxy-1,1,2,2,3,3,3-heptafluoropropane.....      22052-86-4  CF3CF2CF2OCH2CH3................          \b\ 61
2-Ethoxy-3,3,4,4,5-pentafluorotetrahydro-2,5-      920979-28-8  C12H5F19O2......................          \b\ 56
 bis[1,2,2,2-tetrafluoro-1-
 (trifluoromethyl)ethyl]-furan.
1-Ethoxy-1,1,2,3,3,3-hexafluoropropane........        380-34-7  CF3CHFCF2OCH2CH3................          \b\ 23
Fluoro(methoxy)methane........................        460-22-0  CH3OCH2F........................          \b\ 13
1,1,2,2-Tetrafluoro-3-methoxy-propane; Methyl       60598-17-6  CHF2CF2CH2OCH3..................         \b\ 0.5
 2,2,3,3-tetrafluoropropyl ether.
1,1,2,2-Tetrafluoro-1-(fluoromethoxy)ethane...      37031-31-5  CH2FOCF2CF2H....................         \b\ 871
Difluoro(fluoromethoxy)methane................        461-63-2  CH2FOCHF2.......................         \b\ 617
Fluoro(fluoromethoxy)methane..................        462-51-1  CH2FOCH2F.......................         \b\ 130
----------------------------------------------------------------------------------------------------------------
                                              Fluorinated Formates
----------------------------------------------------------------------------------------------------------------
Trifluoromethyl formate.......................      85358-65-2  HCOOCF3.........................         \b\ 588
Perfluoroethyl formate........................     313064-40-3  HCOOCF2CF3......................         \b\ 580
1,2,2,2-Tetrafluoroethyl formate..............     481631-19-0  HCOOCHFCF3......................         \b\ 470
Perfluorobutyl formate........................     197218-56-7  HCOOCF2CF2CF2CF3................         \b\ 392
Perfluoropropyl formate.......................     271257-42-2  HCOOCF2CF2CF3...................         \b\ 376
1,1,1,3,3,3-Hexafluoropropan-2-yl formate.....     856766-70-6  HCOOCH(CF3)2....................         \b\ 333
2,2,2-Trifluoroethyl formate..................      32042-38-9  HCOOCH2CF3......................          \b\ 33
3,3,3-Trifluoropropyl formate.................    1344118-09-7  HCOOCH2CH2CF3...................          \b\ 17
----------------------------------------------------------------------------------------------------------------
                                              Fluorinated Acetates
----------------------------------------------------------------------------------------------------------------
Methyl 2,2,2-trifluoroacetate.................        431-47-0  CF3COOCH3.......................          \b\ 52
1,1-Difluoroethyl 2,2,2-trifluoroacetate......    1344118-13-3  CF3COOCF2CH3....................          \b\ 31
Difluoromethyl 2,2,2-trifluoroacetate.........       2024-86-4  CF3COOCHF2......................          \b\ 27
2,2,2-Trifluoroethyl 2,2,2-trifluoroacetate...        407-38-5  CF3COOCH2CF3....................           \b\ 7
Methyl 2,2-difluoroacetate....................        433-53-4  HCF2COOCH3......................           \b\ 3
Perfluoroethyl acetate........................     343269-97-6  CH3COOCF2CF3....................         \b\ 2.1
Trifluoromethyl acetate.......................      74123-20-9  CH3COOCF3.......................         \b\ 2.0
Perfluoropropyl acetate.......................    1344118-10-0  CH3COOCF2CF2CF3.................         \b\ 1.8
Perfluorobutyl acetate........................     209597-28-4  CH3COOCF2CF2CF2CF3..............         \b\ 1.6
Ethyl 2,2,2-trifluoroacetate..................        383-63-1  CF3COOCH2CH3....................         \b\ 1.3
----------------------------------------------------------------------------------------------------------------
                                               Carbonofluoridates
----------------------------------------------------------------------------------------------------------------
Methyl carbonofluoridate......................       1538-06-3  FCOOCH3.........................          \b\ 95
1,1-Difluoroethyl carbonofluoridate...........    1344118-11-1  FCOOCF2CH3......................          \b\ 27
----------------------------------------------------------------------------------------------------------------
                             Fluorinated Alcohols Other Than Fluorotelomer Alcohols
----------------------------------------------------------------------------------------------------------------
Bis(trifluoromethyl)-methanol.................        920-66-1  (CF3)2CHOH......................             195
(Octafluorotetramethy-lene) hydroxymethyl                   NA  X-(CF2)4CH(OH)-X................              73
 group.
2,2,3,3,3-Pentafluoropropanol.................        422-05-9  CF3CF2CH2OH.....................              42
2,2,3,3,4,4,4-Heptafluorobutan-1-ol...........        375-01-9  C3F7CH2OH.......................          \b\ 25
2,2,2-Trifluoroethanol........................         75-89-8  CF3CH2OH........................          \b\ 20
2,2,3,4,4,4-Hexafluoro-1-butanol..............        382-31-0  CF3CHFCF2CH2OH..................          \b\ 17
2,2,3,3-Tetrafluoro-1-propanol................         76-37-9  CHF2CF2CH2OH....................          \b\ 13
2,2-Difluoroethanol...........................        359-13-7  CHF2CH2OH.......................           \b\ 3
2-Fluoroethanol...............................        371-62-0  CH2FCH2OH.......................         \b\ 1.1
4,4,4-Trifluorobutan-1-ol.....................        461-18-7  CF3(CH2)2CH2OH..................        \b\ 0.05
----------------------------------------------------------------------------------------------------------------

[[Page 73782]]

 
                                       Unsaturated Perfluorocarbons (PFCs)
----------------------------------------------------------------------------------------------------------------
PFC-1114; TFE.................................        116-14-3  CF2=CF2; C2F4...................       \b\ 0.004
PFC-1216; Dyneon HFP..........................        116-15-4  C3F6; CF3CF=CF2.................        \b\ 0.05
PFC C-1418....................................        559-40-0  c-C5F8..........................        \b\ 1.97
Perfluorobut-2-ene............................        360-89-4  CF3CF=CFCF3.....................        \b\ 1.82
Perfluorobut-1-ene............................        357-26-6  CF3CF2CF=CF2....................        \b\ 0.10
Perfluorobuta-1,3-diene.......................        685-63-2  CF2=CFCF=CF2....................       \b\ 0.003
----------------------------------------------------------------------------------------------------------------
                   Unsaturated Hydrofluorocarbons (HFCs) and Hydrochlorofluorocarbons (HCFCs)
----------------------------------------------------------------------------------------------------------------
HFC-1132a; VF2................................         75-38-7  C2H2F2 , CF2=CH2................        \b\ 0.04
HFC-1141; VF..................................         75-02-5  C2H3F, CH2=CHF..................        \b\ 0.02
(E)-HFC-1225ye................................       5595-10-8  CF3CF=CHF(E)....................        \b\ 0.06
(Z)-HFC-1225ye................................       5528-43-8  CF3CF=CHF(Z)....................        \b\ 0.22
Solstice 1233zd(E)............................     102687-65-0  C3H2ClF3; CHCl=CHCF3............        \b\ 1.34
HFC-1234yf; HFO-1234yf........................        754-12-1  C3H2F4; CF3CF=CH2...............        \b\ 0.31
HFC-1234ze(E).................................       1645-83-6  C3H2F4; trans-CF3CH=CHF.........        \b\ 0.97
HFC-1234ze(Z).................................      29118-25-0  C3H2F4cis-CF3CH=CHF; CF3CH=CHF..        \b\ 0.29
HFC-1243zf; TFP...............................        677-21-4  C3H3F3, CF3CH=CH2...............        \b\ 0.12
(Z)-HFC-1336..................................        692-49-9  CF3CH=CHCF3(Z)..................        \b\ 1.58
HFC-1345zfc...................................        374-27-6  C2F5CH=CH2......................        \b\ 0.09
Capstone 42-U.................................      19430-93-4  C6H3F9, CF3(CF2)3CH=CH2.........        \b\ 0.16
Capstone 62-U.................................      25291-17-2  C8H3F13, CF3(CF2)5CH=CH2........        \b\ 0.11
Capstone 82-U.................................      21652-58-4  C10H3F17, CF3(CF2)7CH=CH2.......        \b\ 0.09
----------------------------------------------------------------------------------------------------------------
                                         Unsaturated Halogenated Ethers
----------------------------------------------------------------------------------------------------------------
PMVE; HFE-216.................................       1187-93-5  CF3OCF=CF2......................        \b\ 0.17
Fluoroxene....................................        406-90-6  CF3CH2OCH=CH2...................        \b\ 0.05
----------------------------------------------------------------------------------------------------------------
                                              Fluorinated Aldehydes
----------------------------------------------------------------------------------------------------------------
3,3,3-Trifluoro-propanal......................        460-40-2  CF3CH2CHO.......................        \b\ 0.01
----------------------------------------------------------------------------------------------------------------
                                               Fluorinated Ketones
----------------------------------------------------------------------------------------------------------------
Novec 1230 (perfluoro (2-methyl-3-pentanone)).        756-13-8  CF3CF2C(O)CF (CF3)2.............         \b\ 0.1
----------------------------------------------------------------------------------------------------------------
                                             Fluorotelomer Alcohols
----------------------------------------------------------------------------------------------------------------
3,3,4,4,5,5,6,6,7,7,7-Undecafluoroheptan-1-ol.     185689-57-0  CF3(CF2)4CH2CH2OH...............        \b\ 0.43
3,3,3-Trifluoropropan-1-ol....................       2240-88-2  CF3CH2CH2OH.....................        \b\ 0.35
3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-                        755-02-2  CF3(CF2)6CH2CH2OH...............        \b\ 0.33
 Pentadecafluorononan-1-ol.
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-         87017-97-8  CF3(CF2)8CH2CH2OH...............        \b\ 0.19
 Nonadecafluoroundecan-1-ol.
----------------------------------------------------------------------------------------------------------------
                                   Fluorinated GHGs With Carbon-Iodine Bond(s)
----------------------------------------------------------------------------------------------------------------
Trifluoroiodomethane..........................       2314-97-8  CF3I............................         \b\ 0.4
----------------------------------------------------------------------------------------------------------------
                                           Other Fluorinated Compounds
----------------------------------------------------------------------------------------------------------------
Dibromodifluoromethane (Halon 1202)...........         75-61-6  CBR2F2..........................         \b\ 231
2-Bromo-2-chloro-1,1,1-trifluoroethane (Halon-        151-67-7  CHBrClCF3.......................          \b\ 41
 2311/Halothane).
----------------------------------------------------------------------------------------------------------------

 
                                                              Global
                                                              warming
                Fluorinated GHG Group \d\                    potential
                                                             (100 yr.)
------------------------------------------------------------------------
   Default GWPs for Compounds for Which Chemical-Specific GWPs Are Not
                              Listed Above
------------------------------------------------------------------------
Fully fluorinated GHGs..................................          10,000
Saturated hydrofluorocarbons (HFCs) with 2 or fewer                3,700
 carbon-hydrogen bonds..................................
Saturated HFCs with 3 or more carbon-hydrogen bonds.....             930
Saturated hydrofluoroethers (HFEs) and                             5,700
 hydrochlorofluoroethers (HCFEs) with 1 carbon-hydrogen
 bond...................................................
Saturated HFEs and HCFEs with 2 carbon-hydrogen bonds...           2,600
Saturated HFEs and HCFEs with 3 or more carbon-hydrogen              270
 bonds..................................................
Fluorinated formates....................................             350

[[Page 73783]]

 
Fluorinated acetates, carbonofluoridates, and                         30
 fluorinated alcohols other than fluorotelomer alcohols.
Unsaturated perfluorocarbons (PFCs), unsaturated HFCs,                 1
 unsaturated hydrochlorofluorocarbons (HCFCs),
 unsaturated halogenated ethers, unsaturated halogenated
 esters, fluorinated aldehydes, and fluorinated ketones.
Fluorotelomer alcohols..................................               1
Fluorinated GHGs with carbon-iodine bond(s).............               1
Other fluorinated GHGs..................................           2,000
------------------------------------------------------------------------
\a\ The GWP for this compound was updated in the final rule published on
  November 29, 2013 [78 FR 71904] and effective on January 1, 2014.
\b\ This compound was added to Table A-1 in the final rule published on
  December 11, 2014, and effective on January 1, 2015.
\c\ The GWP for this compound was updated in the final rule published on
  December 11, 2014, and effective on January 1, 2015 .
\d\ For electronics manufacturing (as defined in Sec.   98.90), the term
  ``fluorinated GHGs'' in the definition of each fluorinated GHG group
  in Sec.   98.6 shall include fluorinated heat transfer fluids (as
  defined in Sec.   98.98), whether or not they are also fluorinated
  GHGs.

0
7. Table A-7 of subpart A is revised to read as follows:

   Table A-7 to Subpart A of Part 98--Data Elements That Are Inputs to
  Emission Equations and for Which the Reporting Deadline Is March 31,
                                  2015
------------------------------------------------------------------------
                                                 Specific data elements
                                                for which reporting date
                                                   is March 31, 2015
                          Rule citation  (40    (``All'' means all data
        Subpart              CFR part 98)        elements in the cited
                                                   paragraph are  not
                                                required to be reported
                                                 until March 31, 2015)
------------------------------------------------------------------------
A.....................  98.3(d)(3)(v)........  All.\a\
C.....................  98.36(b)(9)(iii).....  Only estimate of the heat
                                                input.\a\
C.....................  98.36(c)(2)(ix)......  Only estimate of the heat
                                                input from each type of
                                                fuel listed in Table C-
                                                2.\a\
C.....................  98.36(e)(2)(i).......  All.\a\
C.....................  98.36(e)(2)(ii)(A)...  All.\a\
C.....................  98.36(e)(2)(ii)(C)...  Only HHV value for each
                                                calendar month in which
                                                HHV determination is
                                                required.\a\
C.....................  98.36(e)(2)(ii)(D)...  All.\a\
C.....................  98.36(e)(2)(iv)(A)...  All.\a\
C.....................  98.36(e)(2)(iv)(C)...  All.\a\
C.....................  98.36(e)(2)(iv)(F)...  All.\a\
C.....................  98.36(e)(2)(ix)(D)...  All.\a\
C.....................  98.36(e)(2)(ix)(E)...  All.\a\
C.....................  98.36(e)(2)(ix)(F)...  All.\a\
E.....................  98.56(g).............  All.
E.....................  98.56(h).............  All.
E.....................  98.56(j)(4)..........  All.
E.....................  98.56(j)(5)..........  All.
E.....................  98.56(j)(6)..........  All.
E.....................  98.56(l).............  All.
H.....................  98.86(b)(11).........  All.
H.....................  98.86(b)(13).........  Name of raw kiln feed or
                                                raw material.
O.....................  98.156(d)(2).........  All.
O.....................  98.156(d)(3).........  All.
O.....................  98.156(d)(4).........  All.
Q.....................  98.176(f)(1).........  All.
W.....................  98.236(c)(1)(i)......  All.
W.....................  98.236(c)(1)(ii).....  All.
W.....................  98.236(c)(1)(iii)....  All.
W.....................  98.236(c)(2)(i)......  All.
W.....................  98.236(c)(3)(i)......  All.
W.....................  98.236(c)(3)(ii).....  Only Calculation
                                                Methodology 2.
W.....................  98.236(c)(3)(iii)....  All.
W.....................  98.236(c)(3)(iv).....  All.
W.....................  98.236(c)(4)(i)(A)...  All.
W.....................  98.236(c)(4)(i)(B)...  All.
W.....................  98.236(c)(4)(i)(C)...  All.
W.....................  98.236(c)(4)(i)(D)...  All.
W.....................  98.236(c)(4)(i)(E)...  All.
W.....................  98.236(c)(4)(i)(F)...  All.
W.....................  98.236(c)(4)(i)(G)...  All.
W.....................  98.236(c)(4)(i)(H)...  All.
W.....................  98.236(c)(4)(ii)(A)..  All.
W.....................  98.236(c)(5)(i)(D)...  All.
W.....................  98.236(c)(5)(ii)(C)..  All.
W.....................  98.236(c)(6)(i)(B)...  All.\b\
W.....................  98.236(c)(6)(i)(D)...  All.\b\
W.....................  98.236(c)(6)(i)(E)...  All.\b\
W.....................  98.236(c)(6)(i)(F)...  All.\b\

[[Page 73784]]

 
W.....................  98.236(c)(6)(i)(G)...  Only the amount of
                                                natural gas required.
W.....................  98.236(c)(6)(i)(H)...  Only the amount of
                                                natural gas required.
W.....................  98.236(c)(6)(ii)(A)..  All.
W.....................  98.236(c)(6)(ii)(B)..  All.
W.....................  98.236(c)(7)(i)(A)...  Only for Equation W-14A.
W.....................  98.236(c)(8)(i)(F)...  All.\b\
W.....................  98.236(c)(8)(i)(K)...  All.
W.....................  98.236(c)(8)(ii)(A)..  All.\b\
W.....................  98.236(c)(8)(ii)(H)..  All.
W.....................  98.236(c)(8)(iii)(A).  All.
W.....................  98.236(c)(8)(iii)(B).  All.
W.....................  98.236(c)(8)(iii)(G).  All.
W.....................  98.236(c)(12)(ii)....  All.
W.....................  98.236(c)(12)(v).....  All.
W.....................  98.236(c)(13)(i)(E)..  All.
W.....................  98.236(c)(13)(i)(F)..  All.
W.....................  98.236(c)(13)(ii)(A).  All.
W.....................  98.236(c)(13)(ii)(B).  All.
W.....................  98.236(c)(13)(iii)(A)  All.
W.....................  98.236(c)(13)(iii)(B)  All.
W.....................  98.236(c)(13)(v)(A)..  All.
W.....................  98.236(c)(14)(i)(B)..  All.
W.....................  98.236(c)(14)(ii)(A).  All.
W.....................  98.236(c)(14)(ii)(B).  All.
W.....................  98.236(c)(14)(iii)(A)  All.
W.....................  98.236(c)(14)(iii)(B)  All.
W.....................  98.236(c)(14)(v)(A)..  All.
W.....................  98.236(c)(15)(ii)(A).  All.
W.....................  98.236(c)(15)(ii)(B).  All.
W.....................  98.236(c)(16)(viii)..  All.
W.....................  98.236(c)(16)(ix)....  All.
W.....................  98.236(c)(16)(x).....  All.
W.....................  98.236(c)(16)(xi)....  All.
W.....................  98.236(c)(16)(xii)...  All.
W.....................  98.236(c)(16)(xiii)..  All.
W.....................  98.236(c)(16)(xiv)...  All.
W.....................  98.236(c)(16)(xv)....  All.
W.....................  98.236(c)(16)(xvi)...  All.
W.....................  98.236(c)(17)(ii)....  All.
W.....................  98.236(c)(17)(iii)...  All.
W.....................  98.236(c)(17)(iv)....  All.
W.....................  98.236(c)(18)(i).....  All.
W.....................  98.236(c)(18)(ii)....  All.
W.....................  98.236(c)(19)(iv)....  All.
W.....................  98.236(c)(19)(vii)...  All.
Y.....................  98.256(h)(5)(i)......  Only value of the
                                                correction.
Y.....................  98.256(k)(4).........  Only mole fraction of
                                                methane in coking gas.
Y.....................  98.256(n)(3).........  All (if used in Equation
                                                Y-21 to calculate
                                                emissions from equipment
                                                leaks).
Y.....................  98.256(o)(4)(vi).....  Only tank-specific
                                                methane composition data
                                                and gas generation rate
                                                data.
AA....................  98.276(e)............  All.
CC....................  98.296(b)(10)(i).....  All.
CC....................  98.296(b)(10)(ii)....  All.
CC....................  98.296(b)(10)(iii)...  All.
CC....................  98.296(b)(10)(iv)....  All.
CC....................  98.296(b)(10)(v).....  All.
CC....................  98.296(b)(10)(vi)....  All.
II....................  98.356(d)(2).........  All (if conducting weekly
                                                sampling).
II....................  98.356(d)(3).........  All (if conducting weekly
                                                sampling).
II....................  98.356(d)(4).........  Only weekly average
                                                temperature (if
                                                conducting weekly
                                                sampling).
II....................  98.356(d)(5).........  Only weekly average
                                                moisture content (if
                                                conducting weekly
                                                sampling).
II....................  98.356(d)(6).........  Only weekly average
                                                pressure (if conducting
                                                weekly sampling).
------------------------------------------------------------------------
\a\ Required to be reported only by: (1) Stationary fuel combustion
  sources (e.g., individual units, aggregations of units, common pipes,
  or common stacks) subject to subpart C of this part that contain at
  least one combustion unit connected to a fuel-fired electric generator
  owned or operated by an entity that is subject to regulation of
  customer billing rates by the PUC (excluding generators connected to
  combustion units subject to 40 CFR part 98, subpart D) and that are
  located at a facility for which the sum of the nameplate capacities
  for all such electric generators is greater than or equal to 1
  megawatt electric output; and (2) stationary fuel combustion sources
  (e.g., individual units, aggregations of units, common pipes, or
  common stacks) subject to subpart C of this part that do not meet the
  criteria in (1) of this footnote that elect to report these data
  elements, as provided in Sec.   98.36(a), for reporting year 2014.
\b\ This rule citation provides an option to delay reporting of this
  data element for certain wildcat wells and/or delineation wells.

[[Page 73785]]

Subpart I--Electronics Manufacturing

0
8. Section 98.93 is amended by revising paragraph (i)(2) to read as 
follows:

Sec.  98.93  Calculating GHG emissions.

* * * * *
    (i) * * *
    (2) Method selection for stack systems in the fab. If the 
calculations under paragraph (i)(1) of this section, as well as any 
subsequent annual measurements and calculations under this subpart, 
indicate that the stack system meets the criteria in paragraph 
(i)(2)(i) through (iii) of this section, then you may comply with 
either paragraph (i)(3) of this section (stack test method) or 
paragraph (i)(4) of this section (method to estimate emissions from the 
stack systems that are not tested). If the stack system does not meet 
all three criteria in paragraph (i)(2)(i) through (iii) of this 
section, then you must comply with the stack test method specified in 
paragraph (i)(3) of this section.
* * * * *

0
9. Section 98.94 is amended by removing paragraph (j)(5)(ii)(C) and 
revising paragraph (j)(8)(i) to read as follows:

Sec.  98.94  Monitoring and QA/QC requirements.

* * * * *
    (j) * * *
    (8) * * *
    (i) Annual consumption of a fluorinated GHG used during the most 
recent emissions test (expressed in CO2e) changes by more 
than 10 percent of the total annual fluorinated GHG consumption, 
relative to gas consumption in CO2e for that gas during the 
year of the most recent emissions test (for example, if the use of a 
single gas goes from 25 percent of CO2e to greater than 35 
percent of CO2e, this change would trigger a re-test).
* * * * *

0
10. Section 98.96 is amended by:
0
a. Revising the parameter ``GWPi'' of Equation I-26 in 
paragraph (r) introductory text;
0
b. Revising the parameters ``GWPi'' and ``GWPk'' 
of Equation I-27 in paragraph (r)(1);
0
c. Revising the parameters ``GWPi'' and ``GWPk'' 
of Equation I-28 in paragraph (r)(2); and
0
d. Revising paragraph (x).
    The revisions read as follows:

Sec.  98.96  Data reporting requirements.

* * * * *
    (r) * * *
* * * * *
GWPi = GWP of emitted fluorinated GHG i from Table A-1 of 
this part.
* * * * *
    (1) * * *

GWPi = GWP of emitted fluorinated GHG i from Table A-1 of 
this part.
GWPk = GWP of emitted fluorinated GHG by-product k from 
Table A-1 of this part.
* * * * *
    (2) * * *

GWPi = GWP of emitted fluorinated GHG i from Table A-1 of 
this part.
GWPk = GWP of emitted fluorinated GHG by-product k from 
Table A-1 of this part.
* * * * *
    (x) If the emissions you report under paragraph (c) of this section 
include emissions from research and development activities, as defined 
in Sec.  98.6, report the approximate percentage of total GHG 
emissions, on a metric ton CO2e basis, that are attributable 
to research and development activities, using the following ranges: 
less than 5 percent, 5 percent to less than 10 percent, 10 percent to 
less than 25 percent, 25 percent to less than 50 percent, 50 percent 
and higher.
* * * * *

Subpart L--Fluorinated Gas Production

0
11. Section 98.122 is amended by revising paragraph (c) and adding 
paragraphs (d), (e) and (f) to read as follows:

Sec.  98.122  GHGs to report.

* * * * *
    (c) Emissions from production and transformation processes, process 
level. You must report, for each fluorinated GHG group, the total GWP-
weighted mass of all fluorinated GHGs in that group (in metric tons 
CO2e) emitted from:
    (1) Each fluorinated gas production process.
    (2) Each fluorinated gas transformation process that is not part of 
a fluorinated gas production process and where no fluorinated GHG 
reactant is produced at another facility.
    (3) Each fluorinated gas transformation process that is not part of 
a fluorinated gas production process and where one or more fluorinated 
GHG reactants are produced at another facility.
    (d) Emissions from production and transformation processes, 
facility level, multiple products. If your facility produces more than 
one fluorinated gas product, you must report the emissions (in metric 
tons) from production and transformation processes, totaled across the 
facility as a whole, of each fluorinated GHG that is emitted in 
quantities of 1,000 metric tons of CO2e or more from 
production or transformation processes, totaled across the facility as 
a whole. Aggregate and report emissions of all other fluorinated GHGs 
from production and transformation processes by fluorinated GHG group 
for the facility as a whole, in metric tons of CO2e.
    (e) Emissions from production and transformation processes, 
facility level, one product only. If your facility produces only one 
fluorinated gas product, aggregate and report the GWP-weighted 
emissions from production and transformation processes of fluorinated 
GHGs by fluorinated GHG group for the facility as a whole, in metric 
tons CO2e, with the following exception: Where emissions 
consist of a major fluorinated GHG constituent of a fluorinated gas 
product, and the product is sold or transferred to another person, 
report the total mass of each fluorinated GHG that is emitted from 
production and transformation processes and that is a major fluorinated 
GHG constituent of the product (in metric tons).
    (f) Emissions from destruction processes and venting of containers. 
You must report the total mass of each fluorinated GHG emitted (in 
metric tons) from:
    (1) Each fluorinated gas destruction process that is not part of a 
fluorinated gas production process or a fluorinated gas transformation 
process and all such fluorinated gas destruction processes combined.
    (2) Venting of residual fluorinated GHGs from containers returned 
from the field.

0
12. Section 98.123 is amended by:
0
a. Revising the introductory text;
0
b. Removing and reserving paragraph (a);
0
c. Revising paragraph (b);
0
d. Revising paragraph (c)(1)(v);
0
e. Removing and reserving paragraph (c)(1)(vi);
0
f. Redesignating paragraphs (e)(i) and (e)(ii) as paragraphs (e)(1) and 
(e)(2), respectively;
0
g. Revising paragraphs (g)(1), (g)(2)(ii), and (g)(2)(iv); and
0
h. Adding paragraph (h).
    The revisions and additions read as follows:

Sec.  98.123  Calculating GHG emissions.

    For fluorinated gas production and transformation processes, you 
must calculate the fluorinated GHG emissions from each process using 
the emission

[[Page 73786]]

factor or emission calculation factor method specified in paragraphs 
(c), (d), and (e) of this section, as appropriate. For destruction 
processes that destroy fluorinated GHGs that were previously 
``produced'' as defined at Sec.  98.410(b), you must calculate 
emissions using the procedures in paragraph (f) of this section. For 
venting of residual gas from containers (e.g., cylinder heels), you 
must calculate emissions using the procedures in paragraph (g) of this 
section.
    (a) [Reserved]
    (b) Mass balance method. The mass balance method was available for 
reporting years 2011, 2012, 2013, and 2014 only. See paragraph 1 of 
Appendix A of this subpart for the former mass balance method.
    (c) * * *
    (1) * * *
    (v) GWPs. To convert the fluorinated GHG emissions to 
CO2e, use Equation A-1 of Sec.  98.2.
    (vi) [Reserved]
* * * * *
    (g) * * *
    (1) Measuring contents of each container. If you weigh or otherwise 
measure the contents of each container before venting the residual 
fluorinated GHGs, use Equation L-32 of this section to calculate annual 
emissions of each fluorinated GHG from venting of residual fluorinated 
GHG from containers. Convert pressures to masses as directed in 
paragraph (g)(2)(ii) of this section.
[GRAPHIC] [TIFF OMITTED] TR11DE14.001

Where:

ECf = Total mass of each fluorinated GHG f emitted from 
the facility through venting of residual fluorinated GHG from 
containers, annual basis (metric tons/year).
HBfj = Mass of residual fluorinated GHG f in container j 
when received by facility (metric tons).
HEfj = Mass of residual fluorinated GHG f in container j 
after evacuation by facility (metric tons). (Facility may equate to 
zero.)
n = Number of vented containers for each fluorinated GHG f.

    (2) * * *
    (ii) Measurement of residual gas. The residual weight or pressure 
you use for paragraph (g)(1) of this section must be determined by 
monitoring the mass or the pressure of your cylinders/containers 
according to Sec.  98.124(k). If you monitor the pressure, convert the 
pressure to mass using a form of the ideal gas law, as displayed in 
Equation L-33 of this section, with an appropriately selected Z value.
[GRAPHIC] [TIFF OMITTED] TR11DE14.002

Where:

mR = Mass of residual gas in the container (metric ton).
p = Absolute pressure of the gas (Pa).
V = Volume of the gas (m\3\).
MW = Molecular weight of the fluorinated GHG f (g/gmole).
Z = Compressibility factor.
R = Gas constant (8.314 Pa m\3\/Kelvin mole).
T = Absolute temperature (K).
10\6\ = Conversion factor (10\6\ g/metric ton).
* * * * *
    (iv) Calculate annual emissions of each fluorinated GHG from 
venting of residual fluorinated GHG from containers using Equation L-34 
of this section.
[GRAPHIC] [TIFF OMITTED] TR11DE14.003

Where:

ECf = Total mass of each fluorinated GHG f emitted from 
the facility through venting of residual fluorinated GHG from 
containers, annual basis (metric tons/year).
hfj = Facility-wide gas-specific heel factor for 
fluorinated GHG f (fraction) and container size and type j, as 
determined in paragraph (g)(2)(iii) of this section.
Nfj = Number of containers of size and type j returned to 
the fluorinated gas production facility.
Ffj = Full capacity of containers of size and type j 
containing fluorinated GHG f (metric tons).
n = Number of combinations of container sizes and types for 
fluorinated GHG f.

    (h) Effective destruction efficiency for each process. If you used 
the emission factor or emission calculation factor method to calculate 
emissions from the process, use Equation L-35 to calculate the 
effective destruction efficiency for the process, including each 
process vent:
[GRAPHIC] [TIFF OMITTED] TR11DE14.004

[[Page 73787]]

Where:

DEEffective = Effective destruction efficiency for 
process i (fraction).
EPVf = Mass of fluorinated GHG f emitted from process 
vent v from process i, operating scenario j, for the year, 
calculated in Equation L-21, L-22, L-26, or L-27 of this section 
(kg).
GWPf = Global warming potential for each greenhouse gas 
from Table A-1 of subpart A of this part.
ECFPV-Uf = Emission calculation factor for fluorinated 
GHG f emitted from process vent v during process i, operating 
scenario j during periods when the process vent is not vented to the 
properly functioning destruction device, as used in Equation L-21; 
or emission calculation factor for fluorinated GHG f emitted from 
process vent v during process i, operating scenario j, as used in 
Equation L-26 or L-27 (kg emitted/activity) (e.g., kg emitted/kg 
product), denoted as ``ECFPV'' in those equations.
EFPV-Uf = Emission factor (uncontrolled) for fluorinated 
GHG f emitted from process vent v during process i, operating 
scenario j, as used in Equation L-22 (kg emitted/activity) (e.g., kg 
emitted/kg product), denoted as ``EFPV-U'' in that 
equation.
ActivityU = Total process feed, process production, or 
other process activity for process i, operating scenario j during 
the year, for which the process vent is not vented to the properly 
functioning destruction device (i.e., uncontrolled).
ActivityC = Total process feed, process production, or 
other process activity for process i, operating scenario j during 
the year, for which emissions are vented to the properly functioning 
destruction device (i.e., controlled).
o = Number of operating scenarios for process i.
v = Number of process vents in process i, operating scenario j.
w = Number of fluorinated GHGs emitted from the process.

0
5. Section 98.124 is amended by revising paragraphs (b) and (c)(1), (2) 
and (5) and redesignating paragraphs (c)(7) through (9) as paragraphs 
(c)(6) through (8).
    The revisions read as follows:

Sec.  98.124  Monitoring and QA/QC requirements.

* * * * *
    (b) Mass balance monitoring. Mass balance monitoring was available 
for reporting years 2011, 2012, 2013, and 2014 only. See paragraph 2 of 
Appendix A of this subpart for the former mass balance method.
    (c) * * *
    (1) Process vent testing. Conduct an emissions test that is based 
on representative performance of the process or operating scenario(s) 
of the process, as applicable. For process vents for which you 
performed an initial scoping speciation, include in the emission test 
any fluorinated GHG that was identified in the initial scoping 
speciation. For process vents for which you did not perform an initial 
scoping speciation, include in the emission test any fluorinated 
greenhouse gas that occurs in more than trace concentrations in the 
vent stream or, where a destruction device is used, in the inlet to the 
destruction device. You may include startup and shutdown events if the 
testing is sufficiently long or comprehensive to ensure that such 
events are not overrepresented in the emission factor. Malfunction 
events must not be included in the testing. If you do not detect a 
fluorinated GHG that was identified in the scoping speciation or that 
occurs in more than trace concentrations in the vent stream or in the 
inlet to the destruction device, assume that fluorinated GHG was 
emitted at one half of the detection limit.
    (2) Number of runs. For continuous processes, sample the process 
vent for a minimum of three runs of 1 hour each. If the relative 
standard deviation (RSD) of the emission factor calculated based on the 
first three runs is greater than or equal to 0.15 for the emission 
factor, continue to sample the process vent for an additional three 
runs of 1 hour each. If more than one fluorinated GHG is measured, the 
RSD must be expressed in terms of total CO2e.
* * * * *
    (5) Emission test results. The results of an emission test must 
include the analysis of samples, number of test runs, the results of 
the RSD analysis, the analytical method used, determination of 
emissions, the process activity, and raw data and must identify the 
process, the operating scenario, the process vents tested, and the 
fluorinated GHGs that were included in the test. The emissions test 
report must contain all information and data used to derive the 
process-vent-specific emission factor, as well as key process 
conditions during the test. Key process conditions include those that 
are normally monitored for process control purposes and may include but 
are not limited to yields, pressures, temperatures, etc. (e.g., of 
reactor vessels, distillation columns).
* * * * *

0
6. Section 98.126 is amended by:
0
a. Revising paragraphs (a) through (e);
0
b. Removing and reserving paragraphs (f)(1), (f)(5), and (g)(1);
0
c. Revising paragraphs (g)(2) and (h)(1);
0
d. Removing and reserving paragraph (h)(2); and
0
e. Adding paragraph (k).
    The revisions and additions read as follows:

Sec.  98.126  Data reporting requirements.

    (a) All facilities. In addition to the information required by 
Sec.  98.3(c), you must report the information in paragraphs (a)(2) 
through (6) of this section according to the schedule in paragraph 
(a)(1) of this section, except as otherwise provided in paragraph (j) 
of this section or in Sec.  98.3(c)(4)(vii) and Table A-7 of subpart A 
of this part.
    (1) Frequency of reporting under paragraph (a) of this section. The 
information in paragraphs (a)(2) through (6) of this section must be 
reported annually.
    (2) Generically-identified process. For each production and 
transformation process at the facility, you must:
    (i) Provide a number, letter, or other identifier for the process. 
This identifier must be consistent from year to year.
    (ii) Indicate whether the process is a fluorinated gas production 
process, a fluorinated gas transformation process where no fluorinated 
GHG reactant is produced at another facility, or a fluorinated gas 
transformation process where one or more fluorinated GHG reactants are 
produced at another facility.
    (iii) Indicate whether the process could be characterized as 
reaction, distillation, or packaging (include all that apply).
    (iv) For each generically-identified process and each fluorinated 
GHG group, report the method(s) used to determine the mass emissions of 
that fluorinated GHG group from that process from vents (i.e., mass 
balance (for reporting years 2011, 2012, 2013, and 2014 only), process-
vent-specific emission factor, or process-vent-specific emission 
calculation factor).
    (v) For each generically-identified process and each fluorinated 
GHG group, report the method(s) used to determine the mass emissions of 
that fluorinated GHG group from that process from equipment leaks, 
unless you used the mass balance method (for reporting years 2011, 
2012, 2013, and 2014 only) for that process.
    (3) Emissions from production and transformation processes, process 
level, multiple products. If your facility produces more than one 
fluorinated gas product, for each generically-identified process and 
each fluorinated GHG group, you must report the total GWP-weighted 
emissions of all fluorinated GHGs in that group from the process, in 
metric tons CO2e.
    (4) Emissions from production and transformation processes, 
facility level, multiple products. If your facility

[[Page 73788]]

produces more than one fluorinated gas product, you must report the 
information in paragraphs (a)(4)(i) and (ii) of this section, as 
applicable, for emissions from production and transformation processes.
    (i) For each fluorinated GHG with emissions of 1,000 metric tons of 
CO2e or more from production and transformation processes, 
summed across the facility as a whole, you must report the total mass 
in metric tons of the fluorinated GHG emitted from production and 
transformation processes, summed across the facility as a whole. If the 
fluorinated GHG does not have a chemical-specific GWP in Table A-1 of 
subpart A, identify the fluorinated GHG group of which that fluorinated 
GHG is a member.
    (ii) For all other fluorinated GHGs emitted from production and 
transformation processes, you must report the total GWP-weighted 
emissions from production and transformation processes of those 
fluorinated GHGs by fluorinated GHG group, summed across the facility 
as a whole, in metric tons of CO2e.
    (5) Emissions from production and transformation processes, 
facility level, one product only. If your facility produces only one 
fluorinated gas product, aggregate and report the total GWP-weighted 
emissions from production and transformation processes of fluorinated 
GHGs by fluorinated GHG group for the facility as a whole, in metric 
tons of CO2e, with the following exception: Where emissions 
consist of a major fluorinated GHG constituent of a fluorinated gas 
product, and the product is sold or transferred to another person, 
report the total mass in metric tons of each fluorinated GHG that is 
emitted from production and transformation processes and that is a 
major fluorinated GHG constituent of the product. If the fluorinated 
GHG does not have a chemical-specific GWP in Table A-1 of subpart A, 
identify the fluorinated GHG group of which that fluorinated GHG is a 
member.
    (6) Effective destruction efficiency. For each generically-
identified process, use Table L-1 of this subpart to report the range 
that encompasses the effective destruction efficiency, 
DEeffective, calculated for that process using Equation L-35 
of this subpart. The effective destruction efficiency must be reported 
on a CO2e basis.
    (b) Reporting for mass balance method for reporting years 2011, 
2012, 2013, and 2014. If you used the mass balance method to calculate 
emissions for any of the reporting years 2011, 2012, 2013, or 2014, you 
must conduct mass balance reporting for that reporting year. For 
processes whose emissions were determined using the mass balance method 
under the former Sec.  98.123(b), as included in paragraph 1 of 
Appendix A of this subpart, you must report the information listed in 
paragraphs (b)(1) and (b)(2) of this section for each process on an 
annual basis.
    (1) If you calculated the relative and absolute errors under the 
former Sec.  98.123(b)(1), the overall absolute and relative errors 
calculated for the process under the former Sec.  98.123(b)(1), in 
metric tons CO2e and decimal fraction, respectively.
    (2) The method used to estimate the total mass of fluorine in 
destroyed or recaptured streams (specify the former Sec.  98.123(b)(4) 
or (15), as included in paragraph 1 of Appendix A of this subpart).
    (c) Reporting for emission factor and emission calculation factor 
approach. For processes whose emissions are determined using the 
emission factor approach under Sec.  98.123(c)(3) or the emission 
calculation factor under Sec.  98.123(c)(4), you must report the 
following for each generically-identified process.
    (1) [Reserved]
    (2) [Reserved]
    (3) For each fluorinated GHG group, the total GWP-weighted mass of 
all fluorinated GHGs in that group emitted from all process vents 
combined, in metric tons of CO2e.
    (4) For each fluorinated GHG group, the total GWP-weighted mass of 
all fluorinated GHGs in that group emitted from equipment leaks, in 
metric tons of CO2e.
    (d) Reporting for missing data. Where missing data have been 
estimated pursuant to Sec.  98.125, you must report:
    (1) The generically-identified process for which the data were 
missing.
    (2) The reason the data were missing, the length of time the data 
were missing, and the method used to estimate the missing data.
    (3) Estimates of the missing data for all missing data associated 
with data elements required to be reported in this section.
    (e) Reporting of destruction device excess emissions data. Each 
fluorinated gas production facility that destroys fluorinated GHGs must 
report the excess emissions that result from malfunctions of the 
destruction device, and these excess emissions must be reflected in the 
fluorinated GHG estimates in the former Sec.  98.123(b) as included in 
paragraph 1 of Appendix A of this subpart for the former mass balance 
method, and in Sec.  98.123(c). Such excess emissions would occur if 
the destruction efficiency was reduced due to the malfunction.
* * * * *
    (g) * * *
    (2) The mass of the fluorinated GHG emitted from the destruction 
device (metric tons).
    (h) * * *
    (1) The mass of the residual fluorinated GHG vented from containers 
annually (metric tons).
* * * * *
    (k) Submission of complete reporting year 2011, 2012, and 2013 GHG 
reports. By March 31, 2015, you must submit annual GHG reports for 
reporting years 2011, 2012, and 2013 that contain the information 
specified in paragraphs (a) through (i) of this section. The reports 
must calculate CO2e using the GWPs in Table A-1 of subpart A 
of this part (as in effect on January 1, 2015). Prior submission of 
partial reports for these reporting years under paragraph (j) of this 
section does not affect your obligation to submit complete reports 
under this paragraph.

0
7. Section 98.127 is amended by:
0
a. Revising the introductory text;
0
b. Revising paragraphs (a)(1) and (2);
0
c. Adding paragraphs (a)(3) and (4);
0
d. Revising paragraph (b);
0
e. Revising paragraph (c) introductory text and paragraph (c)(3); and
0
f. Adding paragraph (l).
    The revisions and additions read as follows:

Sec.  98.127  Records that must be retained.

    In addition to the records required by Sec.  98.3(g), you must 
retain the dated records specified in paragraphs (a) through (l) of 
this section, as applicable.
    (a) * * *
    (1) Identify all products and processes subject to this subpart. 
Include the unit identification as appropriate, the generic process 
identification reported for the process under Sec.  98.126(a)(2)(i) 
through (iii), and the product with which the process is associated.
    (2) Monthly and annual records, as applicable, of all analyses and 
calculations conducted as required under Sec.  98.123, including the 
data monitored under Sec.  98.124, and all information reported as 
required under Sec.  98.126.
    (3) Identify all fluorinated GHGs with emissions of 1,000 metric 
tons CO2e or more from production and transformation 
processes, summed across the facility as a whole, and identify all 
fluorinated GHGs with total emissions less than 1,000 metric tons 
CO2e from production and transformation processes, summed 
across the facility as a whole.

[[Page 73789]]

    (4) Calculations used to determine the total GWP-weighted emissions 
of fluorinated GHGs by fluorinated GHG group for each process, in 
metric tons CO2e.
    (b) Scoping speciation. Retain records documenting the information 
collected under Sec.  98.124(a).
    (c) Mass balance method. Retain the following records for each 
process for which the mass balance method was used to estimate 
emissions in reporting years 2011, 2012, 2013, or 2014. If you used an 
element other than fluorine in the mass balance equation pursuant to 
the former Sec.  98.123(b)(3) as included in paragraph 1 of Appendix A 
of this subpart for the former mass balance method, substitute that 
element for fluorine in the recordkeeping requirements of this 
paragraph.
* * * * *
    (3) The data and calculations used to determine the fractions of 
the mass emitted consisting of each reactant (FERd), product 
(FEP), and by-product (FEBk), including the preliminary 
calculations in the former Sec.  98.123(b)(8)(i).
* * * * *
    (l) Verification software records. For reporting year 2015 and 
thereafter, you must enter into verification software specified in 
Sec.  98.5(b) the data specified in paragraphs (l)(1) through (15) of 
this section. The data specified in paragraphs (l)(1) through (11) must 
be entered for each process and each process vent, as applicable. The 
data specified in paragraphs (l)(1) through (15) must be entered for 
each fluorinated GHG, as applicable. You must keep a record of the file 
generated by the verification software specified in Sec.  98.5(b) for 
the applicable data specified in paragraphs (l)(1) through (15) of this 
section. Retention of this file satisfies the recordkeeping requirement 
for the data in paragraphs (l)(1) through (15) of this section.
    (1) The identity of the process vent (e.g., name or number assigned 
by the facility).
    (2) The equation used to estimate emissions from the process vent 
(Equations L-21, L-22, L-26, or L-27).
    (3) The type of process activity used to estimate emissions from 
the process vent (e.g., product of process or reactant consumed by 
process) (Activity, ActivityC, or ActivityU) 
(Equations L-21, L-22, L-26, L-27, L-35).
    (4) The quantities of the process activity used to estimate 
controlled and uncontrolled emissions, respectively, for the process 
vent, Activity, ActivityU, or ActivityC, (e.g. kg 
product) (Equations L-21, L-22, L-26, L-27, L-35).
    (5) The site-specific, process-vent-specific emission factor, 
EFPV-C, for the process vent, measured after the destruction 
device (kg fluorinated GHG emitted per kg activity) (Equation L-21).
    (6) The site-specific, process-vent-specific emission calculation 
factor, ECFPV-U, for the process vent, for periods not 
vented to destruction device (kg fluorinated GHG emitted per kg 
activity) (Equations L-21, L-35).
    (7) The site-specific, process-vent-specific emission factor(s), 
EFPV-U, for the process vent, measured before the 
destruction device (kg fluorinated GHG emitted per kg activity) 
(Equations L-22, L-35).
    (8) The site-specific, process-vent-specific emission calculation 
factor for the process vent, ECFPV (kg fluorinated GHG 
emitted per kg of activity) (Equations L-26, L-27, L-35).
    (9) Destruction efficiency, DE, of each destruction device for each 
fluorinated GHG whose destruction the facility reflects in Sec.  
98.123, in accordance with Sec.  98.124(g)(1)(i) through (iv) (weight 
fraction) (Equations L-22, L-27, L-31).
    (10) Emissions of each fluorinated GHG for equipment pieces for the 
process, EELf (metric ton/yr) (98.123(d)(3)).
    (11) The mass of the fluorinated GHG previously produced and fed 
into the destruction device, RED, (metric tons) (Equation L-
31).
    (12) If applicable, the heel factor, hfj, calculated for 
each container size and type (decimal fraction) (Equation L-34).
    (13) If applicable, the number of containers of size and type j 
returned to the fluorinated gas production facility, Nfj, 
(Equation L-34).
    (14) If applicable, the full capacity of containers of size and 
type j containing fluorinated GHG f, Ffj, (metric tons) 
(Equation L-34).
    (15) For fluorinated GHGs that do not have a chemical-specific GWP 
on Table A-1 of subpart A of this part, the fluorinated GHG group of 
which the fluorinated GHG is a member, as applicable (to permit look-up 
of global warming potential, GWPf, or GWPi, for 
that fluorinated GHG in Table A-1 of subpart A of this part (Equation 
A-1 of subpart A of this part, Equation L-35)).

0
8. Section 98.128 is amended by adding, in alphabetical order, 
definitions for ``Fluorinated gas product,'' ``Generically-identified 
process,'' and ``Major fluorinated GHG constituent'' to read as 
follows:

Sec.  98.128  Definitions.

* * * * *
    Fluorinated gas product means the product of the process, including 
isolated intermediates.
* * * * *
    Generically-identified process means a process that is:
    (1) Identified as a production process, a transformation process 
where no fluorinated GHG reactant is produced at another facility, or a 
transformation process where one or more fluorinated GHG reactants are 
produced at another facility;
    (2) Further identified as a reaction, distillation, or packaging 
process, or a combination thereof; and
    (3) Tagged with a discrete identifier, such as a letter or number, 
that remains constant from year to year.
* * * * *
    Major fluorinated GHG constituent means a fluorinated GHG 
constituent of a fluorinated gas product that occurs in concentrations 
greater than 1 percent by mass.
* * * * *

0
9. Add table L-1 to subpart L to read as follows:

   Table L-1 of Subpart L of Part 98--Ranges of Effective Destruction
                               Efficiency
------------------------------------------------------------------------
                           Range of Reductions
-------------------------------------------------------------------------
>=99%.
>=95% to <99%.
>=75% to <95%.
>=0% to <75%.
------------------------------------------------------------------------

0
10. Add Appendix A to subpart L to read as follows:

Appendix A to Subpart L of Part 98--Mass Balance Method for Fluorinated 
Gas Production

    1. Mass Balance Method for Sec.  98.123(b). [Note: Numbering 
convention here matches original rule text, 75 FR 74774, December 1, 
2010.]
    (b) Mass balance method. Before using the mass balance approach 
to estimate your fluorinated GHG emissions from a process, you must 
ensure that the process and the equipment and methods used to 
measure it meet either the error limits described in this paragraph 
and calculated under paragraph (b)(1) of this section or the 
requirements specified in paragraph Sec.  98.124(b)(8). If you 
choose to calculate the error limits, you must estimate the absolute 
and relative errors associated with using the mass balance approach 
on that process using Equations L-1 through L-4 of this section in 
conjunction with Equations L-5 through L-10 of this section. You may 
use the mass-balance approach to estimate emissions from the process 
if this calculation results in an absolute error of less than or 
equal to 3,000 metric tons CO2e per year or a relative 
error of less than or equal to 30 percent of the

[[Page 73790]]

estimated CO2e fluorinated GHG emissions. If you do not 
meet either of the error limits or the requirements of paragraph 
Sec.  98.124(b)(8), you must use the emission factor approach 
detailed in paragraphs (c), (d), and (e) of this section to estimate 
emissions from the process.
    (1) Error calculation. To perform the calculation, you must 
first calculate the absolute and relative errors associated with the 
quantities calculated using either Equations L-7 through L-10 of 
this section or Equation L-17 of this section. Alternatively, you 
may estimate these errors based on the variability of previous 
process measurements (e.g., the variability of measurements of 
stream concentrations), provided these measurements are 
representative of the current process and current measurement 
devices and techniques. Once errors have been calculated for the 
quantities in these equations, those errors must be used to 
calculate the errors in Equations L-6 and L-5 of this section. You 
may ignore the errors associated with Equations L-11, L-12, and L-13 
of this section.
    (i) Where the measured quantity is a mass, the error in the mass 
must be equated to the accuracy or precision (whichever is larger) 
of the flowmeter, scale, or combination of volumetric and density 
measurements at the flow rate or mass measured.
    (ii) Where the measured quantity is a concentration of a stream 
component, the error of the concentration must be equated to the 
accuracy or precision (whichever is larger) with which you estimate 
the mean concentration of that stream component, accounting for the 
variability of the process, the frequency of the measurements, and 
the accuracy or precision (whichever is larger) of the analytical 
technique used to measure the concentration at the concentration 
measured. If the variability of process measurements is used to 
estimate the error, this variability shall be assumed to account 
both for the variability of the process and the precision of the 
analytical technique. Use standard statistical techniques such as 
the student's t distribution to estimate the error of the mean of 
the concentration measurements as a function of process variability 
and frequency of measurement.
    (iii) Equation L-1 of this section provides the general formula 
for calculating the absolute errors of sums and differences where 
the sum, S, is the summation of variables measured, a, b, c, etc. 
(e.g., S = a + b + c):
[GRAPHIC] [TIFF OMITTED] TR11DE14.005

Where:

eSA = Absolute error of the sum, expressed as one half of 
a 95 percent confidence interval.
ea = Relative error of a, expressed as one half of a 95 
percent confidence interval.
eb = Relative error of b, expressed as one half of a 95 
percent confidence interval.
ec = Relative error of c, expressed as one half of a 95 
percent confidence interval.

    (iv) Equation L-2 of this section provides the general formula 
for calculating the relative errors of sums and differences:
[GRAPHIC] [TIFF OMITTED] TR11DE14.006

Where:

eSR = Relative error of the sum, expressed as one half of 
a 95 percent confidence interval.
eSA = Absolute error of the sum, expressed as one half of 
a 95 percent confidence interval.
a+b+c = Sum of the variables measured.

    (v) Equation L-3 of this section provides the general formula 
for calculating the absolute errors of products (e.g., flow rates of 
GHGs calculated as the product of the flow rate of the stream and 
the concentration of the GHG in the stream), where the product, P, 
is the result of multiplying the variables measured, a, b, c, etc. 
(e.g., P = a*b*c):
[GRAPHIC] [TIFF OMITTED] TR11DE14.007

Where:
ePA = Absolute error of the product, expressed as one 
half of a 95 percent confidence interval.
ea = Relative error of a, expressed as one half of a 95 
percent confidence interval.
eb = Relative error of b, expressed as one half of a 95 
percent confidence interval.
ec = Relative error of c, expressed as one half of a 95 
percent confidence interval.

    (vi) Equation L-4 of this section provides the general formula 
for calculating the relative errors of products:
[GRAPHIC] [TIFF OMITTED] TR11DE14.008

Where:
ePR = Relative error of the product, expressed as one 
half of a 95 percent confidence interval.
ePA = Absolute error of the product, expressed as one 
half of a 95 percent confidence interval.
a*b*c = Product of the variables measured.

    (vii) Calculate the absolute error of the emissions estimate in 
terms of CO2e by performing a preliminary estimate of the 
annual CO2e emissions of the process using the method in 
paragraph (b)(1)(viii) of this section. Multiply this result by the 
relative error calculated for the mass of fluorine emitted from the 
process in Equation L-6 of this section.
    (viii) To estimate the annual CO2e emissions of the 
process for use in the error estimate, apply the methods set forth 
in paragraphs (b)(2) through (7) and (b)(9) through (16) of this 
section to representative process measurements. If these process 
measurements represent less than one year of typical process 
activity, adjust the estimated emissions to account for one year of 
typical process activity. To estimate the terms FERd, 
FEP, and FEBk for use in the error estimate for Equations 
L-11, L-12, and L-13 of this section, you must either use emission 
testing, monitoring of emitted streams, and/or engineering 
calculations or assessments, or in the alternative assume that all 
fluorine is emitted in the form of the fluorinated GHG that has the 
highest GWP among the

[[Page 73791]]

fluorinated GHGs that occur in more than trace concentrations in the 
process. To convert the fluorinated GHG emissions to 
CO2e, use Equation A-1 of Sec.  98.2. For fluorinated 
GHGs whose GWPs are not listed in Table A-1 to subpart A of this 
part, use a default GWP of 2,000.
    (2) The total mass of each fluorinated GHG emitted annually from 
each fluorinated gas production and each fluorinated GHG 
transformation process must be estimated by using Equation L-5 of 
this section.
[GRAPHIC] [TIFF OMITTED] TR11DE14.009

Where:

EFGHGf = Total mass of each fluorinated GHG f emitted 
annually from production or transformation process i (metric tons).
ERp-FGHGf = Total mass of fluorinated GHG reactant f 
emitted from production process i over the period p (metric tons, 
calculated in Equation L-11 of this section).
EPp-FGHGf = Total mass of the fluorinated GHG product f 
emitted from production process i over the period p (metric tons, 
calculated in Equation L-12 of this section).
EBp-FGHGf = Total mass of fluorinated GHG by-product f 
emitted from production process i over the period p (metric tons, 
calculated in Equation L-13 of this section).
n = Number of concentration and flow measurement periods for the 
year.

    (3) The total mass of fluorine emitted from process i over the 
period p must be estimated at least monthly by calculating the 
difference between the total mass of fluorine in the reactant(s) (or 
inputs, for processes that do not involve a chemical reaction) and 
the total mass of fluorine in the product (or outputs, for processes 
that do not involve a chemical reaction), accounting for the total 
mass of fluorine in any destroyed or recaptured streams that contain 
reactants, products, or by-products (or inputs or outputs). This 
calculation must be performed using Equation L-6 of this section. An 
element other than fluorine may be used in the mass-balance 
equation, provided the element occurs in all of the fluorinated GHGs 
fed into or generated by the process. In this case, the mass 
fractions of the element in the reactants, products, and by-products 
must be calculated as appropriate for that element.
[GRAPHIC] [TIFF OMITTED] TR11DE14.010

Where:

EF = Total mass of fluorine emitted from process i over 
the period p (metric tons).
Rd = Total mass of the fluorine-containing reactant d 
that is fed into process i over the period p (metric tons).
P = Total mass of the fluorine-containing product produced by 
process i over the period p (metric tons).
MFFRd = Mass fraction of fluorine in reactant d, 
calculated in Equation L-14 of this section.
MFFP = Mass fraction of fluorine in the product, 
calculated in Equation L-15 of this section.
FD = Total mass of fluorine in destroyed or recaptured 
streams from process i containing fluorine-containing reactants, 
products, and by-products over the period p, calculated in Equation 
L-7 of this section.
v = Number of fluorine-containing reactants fed into process i.

    (4) The mass of total fluorine in destroyed or recaptured 
streams containing fluorine-containing reactants, products, and by-
products must be estimated at least monthly using Equation L-7 of 
this section unless you use the alternative approach provided in 
paragraph (b)(15) of this section.
[GRAPHIC] [TIFF OMITTED] TR11DE14.011

Where:

FD = Total mass of fluorine in destroyed or recaptured 
streams from process i containing fluorine-containing reactants, 
products, and by-products over the period p.
Pj = Mass of the fluorine-containing product removed from 
process i in stream j and destroyed over the period p (calculated in 
Equation L-8 or L-9 of this section).
Bkj = Mass of fluorine-containing by-product k removed 
from process i in stream j and destroyed over the period p 
(calculated in Equation L-8 or L-9 of this section).
Bkl = Mass of fluorine-containing by-product k removed 
from process i in stream l and recaptured over the period p.
Rdj = Mass of fluorine-containing reactant d removed from 
process i in stream j and destroyed over the period p (calculated in 
Equation L-8 or L-9 of this section).
MFFRd = Mass fraction of fluorine in reactant d, 
calculated in Equation L-14 of this section.
MFFP = Mass fraction of fluorine in the product, 
calculated in Equation L-15 of this section.
MFFBk = Mass fraction of fluorine in by-product k, 
calculated in Equation L-16 of this section.
q = Number of streams destroyed in process i.
x = Number of streams recaptured in process i.
u = Number of fluorine-containing by-products generated in process 
i.
v = Number of fluorine-containing reactants fed into process i.

    (5) The mass of each fluorinated GHG removed from process i in 
stream j and destroyed over the period p (i.e., Pj, 
Bkj, or Rdj, as applicable) must be estimated 
by applying the destruction efficiency (DE) of the device that has 
been demonstrated for the fluorinated GHG f to fluorinated GHG f 
using Equation L-8 of this section:
[GRAPHIC] [TIFF OMITTED] TR11DE14.012

[[Page 73792]]

Where:

MFGHGfj = Mass of fluorinated GHG f removed from process 
i in stream j and destroyed over the period p. (This may be 
Pj, Bkj, or Rdj, as applicable.)
DEFGHGf = Destruction efficiency of the device that has 
been demonstrated for fluorinated GHG f in stream j (fraction).
CFGHGfj = Concentration (mass fraction) of fluorinated 
GHG f in stream j removed from process i and fed into the 
destruction device over the period p. If this concentration is only 
a trace concentration, cF-GHGfj is equal to zero.
Sj = Mass removed in stream j from process i and fed into 
the destruction device over the period p (metric tons).

    (6) The mass of each fluorine-containing compound that is not a 
fluorinated GHG and that is removed from process i in stream j and 
destroyed over the period p (i.e., Pj, Bkj, or 
Rdj, as applicable) must be estimated using Equation L-9 
of this section.
[GRAPHIC] [TIFF OMITTED] TR11DE14.013

Where:

MFCgj = Mass of non-GHG fluorine-containing compound g 
removed from process i in stream j and destroyed over the period p. 
(This may be Pj, Bkj, or Rdj, as 
applicable).
cFCgj = Concentration (mass fraction) of non-GHG 
fluorine-containing compound g in stream j removed from process i 
and fed into the destruction device over the period p. If this 
concentration is only a trace concentration, cFCgj is 
equal to zero.
Sj = Mass removed in stream j from process i and fed into 
the destruction device over the period p (metric tons).

    (7) The mass of fluorine-containing by-product k removed from 
process i in stream l and recaptured over the period p must be 
estimated using Equation L-10 of this section:
[GRAPHIC] [TIFF OMITTED] TR11DE14.014

Where:
Bkl = Mass of fluorine-containing by-product k removed 
from process i in stream l and recaptured over the period p (metric 
tons).
cBkl = Concentration (mass fraction) of fluorine-
containing by-product k in stream l removed from process i and 
recaptured over the period p. If this concentration is only a trace 
concentration, cBkl is equal to zero.
Sl = Mass removed in stream l from process i and 
recaptured over the period p (metric tons).

    (8) To estimate the terms FERd, FEP, and 
FEBk for Equations L-11, L-12, and L-13 of this section, 
you must assume that the total mass of fluorine emitted, 
EF, estimated in Equation L-6 of this section, occurs in 
the form of the fluorinated GHG that has the highest GWP among the 
fluorinated GHGs that occur in more than trace concentrations in the 
process unless you possess emission characterization measurements 
showing otherwise. These emission characterization measurements must 
meet the requirements in paragraph (8)(i), (ii), or (iii) of this 
section, as appropriate. The sum of the terms must equal 1. You must 
document the data and calculations that are used to speciate 
individual compounds and to estimate FERd, FEP, and 
FEBk. Exclude from your calculations the fluorine 
included in FD. For example, exclude fluorine-containing 
compounds that are not fluorinated GHGs and that result from the 
destruction of fluorinated GHGs by any destruction devices (e.g., 
the mass of HF created by combustion of an HFC). However, include 
emissions of fluorinated GHGs that survive the destruction process.
    (i) If the calculations under paragraph (b)(1)(viii) of this 
section, or any subsequent measurements and calculations under this 
subpart, indicate that the process emits 25,000 metric tons 
CO2e or more, estimate the emissions from each process 
vent, considering controls, using the methods in Sec.  98.123(c)(1). 
You must characterize the emissions of any process vent that emits 
25,000 metric tons CO2e or more as specified in Sec.  
98.124(b)(4).
    (ii) For other vents, including vents from processes that emit 
less than 25,000 metric tons CO2e, you must characterize 
emissions as specified in Sec.  98.124(b)(5).
    (iii) For fluorine emissions that are not accounted for by vent 
estimates, you must characterize emissions as specified in Sec.  
98.124(b)(6).
    (9) The total mass of fluorine-containing reactant d emitted 
must be estimated at least monthly based on the total fluorine 
emitted and the fraction that consists of fluorine-containing 
reactants using Equation L-11 of this section. If the fluorine-
containing reactant d is a non-GHG, you may assume that 
FERd is zero.
[GRAPHIC] [TIFF OMITTED] TR11DE14.015

Where:

ER-ip = Total mass of fluorine-containing reactant d that 
is emitted from process i over the period p (metric tons).
FERd = The fraction of the mass emitted that consists of 
the fluorine-containing reactant d.
EF = Total mass of fluorine emissions from process i over 
the period p (metric tons), calculated in Equation L-6 of this 
section.
FEP = The fraction of the mass emitted that consists of the 
fluorine-containing product.
FEBk = The fraction of the mass emitted that consists of 
fluorine-containing by-product k.
MFFRd = Mass fraction of fluorine in reactant d, 
calculated in Equation L-14 of this section.
MFFP = Mass fraction of fluorine in the product, 
calculated in Equation L-15 of this section.
MFFBk = Mass fraction of fluorine in by-product k, 
calculation in Equation L-16 of this section.
u = Number of fluorine-containing by-products generated in process 
i.
v = Number of fluorine-containing reactants fed into process i.

    (10) The total mass of fluorine-containing product emitted must 
be estimated at least monthly based on the total fluorine emitted 
and the fraction that consists of fluorine-containing products using 
Equation L-12 of this section. If the fluorine-containing product is 
a non-GHG, you may assume that FEP is zero.

[[Page 73793]]

[GRAPHIC] [TIFF OMITTED] TR11DE14.016

Where:

EP-ip = Total mass of fluorine-containing product emitted 
from process i over the period p (metric tons).
FEP = The fraction of the mass emitted that consists of the 
fluorine-containing product.
EF = Total mass of fluorine emissions from process i over 
the period p (metric tons), calculated in Equation L-6 of this 
section.
FERd = The fraction of the mass emitted that consists of 
fluorine-containing reactant d.
FEBk = The fraction of the mass emitted that consists of 
fluorine-containing by-product k.
MFFRd = Mass fraction of fluorine in reactant d, 
calculated in Equation L-14 of this section.
MFFP = Mass fraction of fluorine in the product, 
calculated in Equation L-15 of this section.
MFFBk = Mass fraction of fluorine in by-product k, 
calculation in Equation L-16 of this section.
u = Number of fluorine-containing by-products generated in process 
i.
v = Number of fluorine-containing reactants fed into process i.

    (11) The total mass of fluorine-containing by-product k emitted 
must be estimated at least monthly based on the total fluorine 
emitted and the fraction that consists of fluorine-containing by-
products using Equation L-13 of this section. If fluorine-containing 
by-product k is a non-GHG, you may assume that FEBk is 
zero.
[GRAPHIC] [TIFF OMITTED] TR11DE14.017

Where:

EBk-ip = Total mass of fluorine-containing by-product k 
emitted from process i over the period p (metric tons).
FEBk = The fraction of the mass emitted that consists of 
fluorine-containing by-product k.
FERd = The fraction of the mass emitted that consists of 
fluorine-containing reactant d.
FEP = The fraction of the mass emitted that consists of the 
fluorine-containing product.
EF = Total mass of fluorine emissions from process i over 
the period p (metric tons), calculated in Equation L-6 of this 
section.
MFFRd = Mass fraction of fluorine in reactant d, 
calculated in Equation L-14 of this section.
MFFP = Mass fraction of fluorine in the product, 
calculated in Equation L-15 of this section.
MFFBk = Mass fraction of fluorine in by-product k, 
calculation in Equation L-16 of this section.
u = Number of fluorine-containing by-products generated in process 
i.
v = Number of fluorine-containing reactants fed into process i.

    (12) The mass fraction of fluorine in reactant d must be 
estimated using Equation L-14 of this section:
[GRAPHIC] [TIFF OMITTED] TR11DE14.018

Where:

MFFRd = Mass fraction of fluorine in reactant d 
(fraction).
MFRd = Moles fluorine per mole of reactant d.
AWF = Atomic weight of fluorine.
MWRd = Molecular weight of reactant d.

    (13) The mass fraction of fluorine in the product must be 
estimated using Equation L-15 of this section:
[GRAPHIC] [TIFF OMITTED] TR11DE14.019

Where:
MFFP = Mass fraction of fluorine in the product 
(fraction).
MFP = Moles fluorine per mole of product.
AWF = Atomic weight of fluorine.
MWP = Molecular weight of the product produced.

    (14) The mass fraction of fluorine in by-product k must be 
estimated using Equation L-16 of this section:
[GRAPHIC] [TIFF OMITTED] TR11DE14.020

[[Page 73794]]

Where:

MFFBk = Mass fraction of fluorine in the product 
(fraction).
MFBk = Moles fluorine per mole of by-product k.
AWF = Atomic weight of fluorine.
MWBk = Molecular weight of by-product k.

    (15) Alternative for determining the mass of fluorine destroyed 
or recaptured. As an alternative to using Equation L-7 of this 
section as provided in paragraph (b)(4) of this section, you may 
estimate at least monthly the total mass of fluorine in destroyed or 
recaptured streams containing fluorine-containing compounds 
(including all fluorine-containing reactants, products, and 
byproducts) using Equation L-17 of this section.
[GRAPHIC] [TIFF OMITTED] TR11DE14.021

Where:

FD = Total mass of fluorine in destroyed or recaptured 
streams from process i containing fluorine-containing reactants, 
products, and by-products over the period p.
DEavgj = Weighted average destruction efficiency of the 
destruction device for the fluorine-containing compounds identified 
in destroyed stream j under Sec.  98.124(b)(4)(ii) and (5)(ii) 
(calculated in Equation L-18 of this section)(fraction).
cTFj = Concentration (mass fraction) of total fluorine in 
stream j removed from process i and fed into the destruction device 
over the period p. If this concentration is only a trace 
concentration, cTFj is equal to zero.
Sj = Mass removed in stream j from process i and fed into 
the destruction device over the period p (metric tons).
cTFl = Concentration (mass fraction) of total fluorine in 
stream l removed from process i and recaptured over the period p. If 
this concentration is only a trace concentration, cBkl is 
equal to zero.
Sl = Mass removed in stream l from process i and 
recaptured over the period p.
q = Number of streams destroyed in process i.
x = Number of streams recaptured in process i.

    (16) Weighted average destruction efficiency. For purposes of 
Equation L-17 of this section, calculate the weighted average 
destruction efficiency applicable to a destroyed stream using 
Equation L-18 of this section.
[GRAPHIC] [TIFF OMITTED] TR11DE14.022

Where:

DEavgj = Weighted average destruction efficiency of the 
destruction device for the fluorine-containing compounds identified 
in destroyed stream j under 98.124(b)(4)(ii) or (b)(5)(ii), as 
appropriate.
DEFGHGf = Destruction efficiency of the device that has 
been demonstrated for fluorinated GHG f in stream j (fraction).
cFGHGfj = Concentration (mass fraction) of fluorinated 
GHG f in stream j removed from process i and fed into the 
destruction device over the period p. If this concentration is only 
a trace concentration, cF-GHGfj is equal to zero.
cFCgj = Concentration (mass fraction) of non-GHG 
fluorine-containing compound g in stream j removed from process i 
and fed into the destruction device over the period p. If this 
concentration is only a trace concentration, cFCgj is 
equal to zero.
Sj = Mass removed in stream j from process i and fed into 
the destruction device over the period p (metric tons).
MFFFGHGf = Mass fraction of fluorine in fluorinated GHG 
f, calculated in Equation L-14, L-15, or L-16 of this section, as 
appropriate.
MFFFCg = Mass fraction of fluorine in non-GHG fluorine-
containing compound g, calculated in Equation L-14, L-15, or L-16 of 
this section, as appropriate.
w = Number of fluorinated GHGs in destroyed stream j.
y = Number of non-GHG fluorine-containing compounds in destroyed 
stream j.

    2. Mass Balance Method for Sec.  98.124(b). [Note: Numbering 
convention here matches original rule text, 75 FR 74774, December 1, 
2010.]
    (b) Mass balance monitoring. If you determine fluorinated GHG 
emissions from any process using the mass balance method under Sec.  
98.123(b), you must estimate the total mass of each fluorinated GHG 
emitted from that process at least monthly. Only streams that 
contain greater than trace concentrations of fluorine-containing 
reactants, products, or by-products must be monitored under this 
paragraph. If you use an element other than fluorine in the mass-
balance equation pursuant to Sec.  98.123(b)(3), substitute that 
element for fluorine in the monitoring requirements of this 
paragraph.
    (1) Mass measurements. Measure the following masses on a monthly 
or more frequent basis using flowmeters, weigh scales, or a 
combination of volumetric and density measurements with accuracies 
and precisions that allow the facility to meet the error criteria in 
Sec.  98.123(b)(1):
    (i) Total mass of each fluorine-containing product produced. 
Account for any used fluorine-containing product added into the 
production process upstream of the output measurement as directed at 
Sec. Sec.  98.413(b) and 98.414(b). For each product, the mass 
produced used for the mass-balance calculation must be the same as 
the mass produced that is reported under subpart OO of this part, 
where applicable.
    (ii) Total mass of each fluorine-containing reactant fed into 
the process.
    (iii) The mass removed from the process in each stream fed into 
the destruction device.
    (iv) The mass removed from the process in each recaptured 
stream.
    (2) Concentration measurements for use with Sec.  98.123(b)(4). 
If you use Sec.  98.123(b)(4) to estimate the mass of fluorine in 
destroyed or recaptured streams, measure the following 
concentrations at least once each calendar month during which the 
process is operating, on a schedule to ensure that the measurements 
are representative of the full range of process conditions (e.g., 
catalyst age). Measure more frequently if this is necessary to meet 
the error criteria in Sec.  98.123(b)(1). Use equipment and methods 
(e.g., gas chromatography) that comply with paragraph (e) of this 
section and that have an accuracy and precision that allow the 
facility to meet the error criteria in Sec.  98.123(b)(1). Only 
fluorine-containing reactants, products, and by-products that occur 
in a stream in greater than trace concentrations must be monitored 
under this paragraph.
    (i) The concentration (mass fraction) of the fluorine-containing 
product in each stream that is fed into the destruction device.
    (ii) The concentration (mass fraction) of each fluorine-
containing by-product in each stream that is fed into the 
destruction device.
    (iii) The concentration (mass fraction) of each fluorine-
containing reactant in each stream that is fed into the destruction 
device.
    (iv) The concentration (mass fraction) of each fluorine-
containing by-product in each stream that is recaptured 
(cBkl).

[[Page 73795]]

    (3) Concentration measurements for use with Sec.  98.123(b)(15). 
If you use Sec.  98.123(b)(15) to estimate the mass of fluorine in 
destroyed or recaptured streams, measure the concentrations listed 
in paragraphs (b)(3)(i) and (ii) of this section at least once each 
calendar month during which the process is operating, on a schedule 
to ensure that the measurements are representative of the full range 
of process conditions (e.g., catalyst age). Measure more frequently 
if this is necessary to meet the error criteria in Sec.  
98.123(b)(1). Use equipment and methods (e.g., gas chromatography) 
that comply with paragraph (e) of this section and that have an 
accuracy and precision that allow the facility to meet the error 
criteria in Sec.  98.123(b)(1). Only fluorine-containing reactants, 
products, and by-products that occur in a stream in greater than 
trace concentrations must be monitored under this paragraph.
    (i) The concentration (mass fraction) of total fluorine in each 
stream that is fed into the destruction device.
    (ii) The concentration (mass fraction) of total fluorine in each 
stream that is recaptured.
    (4) Emissions characterization: process vents emitting 25,000 
metric tons CO2e or more. To characterize emissions from any process 
vent emitting 25,000 metric tons CO2e or more, comply 
with paragraphs (b)(4)(i) through (b)(4)(v) of this section, as 
appropriate. Only fluorine-containing reactants, products, and by-
products that occur in a stream in greater than trace concentrations 
must be monitored under this paragraph.
    (i) Uncontrolled emissions. If emissions from the process vent 
are not routed through a destruction device, sample and analyze 
emissions at the process vent or stack or sample and analyze emitted 
streams before the process vent. If the process has more than one 
operating scenario, you must either perform the emission 
characterization for each operating scenario or perform the emission 
characterization for the operating scenario that is expected to have 
the largest emissions and adjust the emission characterization for 
other scenarios using engineering calculations and assessments as 
specified in Sec.  98.123(c)(4). To perform the characterization, 
take three samples under conditions that are representative for the 
operating scenario. Measure the concentration of each fluorine-
containing compound in each sample. Use equipment and methods that 
comply with paragraph (e) of this section. Calculate the average 
concentration of each fluorine-containing compound across all three 
samples.
    (ii) Controlled emissions using Sec.  98.123(b)(15). If you use 
Sec.  98.123(b)(15) to estimate the total mass of fluorine in 
destroyed or recaptured streams, and if the emissions from the 
process vent are routed through a destruction device, characterize 
emissions as specified in paragraph (b)(4)(i) of this section before 
the destruction device. Apply the destruction efficiency 
demonstrated for each fluorinated GHG in the destroyed stream to 
that fluorinated GHG. Exclude from the characterization fluorine-
containing compounds that are not fluorinated GHGs.
    (iii) Controlled emissions using Sec.  98.123(b)(4). If you use 
Sec.  98.123(b)(4) to estimate the mass of fluorine in destroyed or 
recaptured streams, and if the emissions from the process vent are 
routed through a destruction device, characterize the process vent's 
emissions monthly (or more frequently) using the monthly (or more 
frequent) measurements under paragraphs (b)(1)(iii) and (b)(2)(i) 
through (iii) of this section. Apply the destruction efficiency 
demonstrated for each fluorinated GHG in the destroyed stream to 
that fluorinated GHG. Exclude from the characterization fluorine-
containing compounds that are not fluorinated GHGs.
    (iv) Emissions characterization frequency. You must repeat 
emission characterizations performed under paragraph (b)(4)(i) and 
(ii) of this section under paragraph (b)(4)(iv)(A) or (B) of this 
section, whichever occurs first:
    (A) 10-year revision. Repeat the emission characterization every 
10 years. In the calculations under Sec.  98.123, apply the revised 
emission characterization to the process activity that occurs after 
the revision.
    (B) Operating scenario change that affects the emission 
characterization. For planned operating scenario changes, you must 
estimate and compare the emission calculation factors for the 
changed operating scenario and for the original operating scenario 
whose process vent specific emission factor was measured. Use the 
engineering calculations and assessments specified in Sec.  
98.123(c)(4). If the share of total fluorine-containing compound 
emissions represented by any fluorinated GHG changes under the 
changed operating scenario by 15 percent or more of the total, 
relative to the previous operating scenario (this includes the 
cumulative change in the emission calculation factor since the last 
emissions test), you must repeat the emission characterization. 
Perform the emission characterization before February 28 of the year 
that immediately follows the change. In the calculations under Sec.  
98.123, apply the revised emission characterization to the process 
activity that occurs after the operating scenario change.
    (v) Subsequent measurements. If a process vent with fluorinated 
GHG emissions less than 25,000 metric tons CO2e, per 
Sec.  98.123(c)(2), is later found to have fluorinated GHG emissions 
of 25,000 metric tons CO2e or greater, you must perform 
an emission characterization under this paragraph during the 
following year.
    (5) Emissions characterization: Process vents emitting less than 
25,000 metric tons CO2e. To characterize emissions from any process 
vent emitting less than 25,000 metric tons CO2e, comply 
with paragraphs (b)(5)(i) through (iii) of this section, as 
appropriate. Only fluorine-containing reactants, products, and by-
products that occur in a stream in greater than trace concentrations 
must be monitored under this paragraph.
    (i) Uncontrolled emissions. If emissions from the process vent 
are not routed through a destruction device, emission measurements 
must consist of sampling and analysis of emissions at the process 
vent or stack, sampling and analysis of emitted streams before the 
process vent, previous test results, provided the tests are 
representative of current operating conditions of the process, or 
bench-scale or pilot-scale test data representative of the process 
operating conditions.
    (ii) Controlled emissions using Sec.  98.123(b)(15). If you use 
Sec.  98.123(b)(15) to estimate the total mass of fluorine in 
destroyed or recaptured streams, and if the emissions from the 
process vent are routed through a destruction device, characterize 
emissions as specified in paragraph (b)(5)(i) of this section before 
the destruction device. Apply the destruction efficiency 
demonstrated for each fluorinated GHG in the destroyed stream to 
that fluorinated GHG. Exclude from the characterization fluorine-
containing compounds that are not fluorinated GHGs.
    (iii) Controlled emissions using Sec.  98.123(b)(4). If you use 
Sec.  98.123(b)(4) to estimate the mass of fluorine in destroyed or 
recaptured streams, and if the emissions from the process vent are 
routed through a destruction device, characterize the process vent's 
emissions monthly (or more frequently) using the monthly (or more 
frequent) measurements under paragraphs (b)(1)(iii) and (b)(2)(i) 
through (iii) of this section. Apply the destruction efficiency 
demonstrated for each fluorinated GHG in the destroyed stream to 
that fluorinated GHG. Exclude from the characterization fluorine-
containing compounds that are not fluorinated GHGs.
    (6) Emissions characterization: Emissions not accounted for by 
process vent estimates. Calculate the weighted average emission 
characterization across the process vents before any destruction 
devices. Apply the weighted average emission characterization for 
all the process vents to any fluorine emissions that are not 
accounted for by process vent estimates.
    (7) Impurities in reactants. If any fluorine-containing impurity 
is fed into a process along with a reactant (or other input) in 
greater than trace concentrations, this impurity shall be monitored 
under this section and included in the calculations under Sec.  
98.123 in the same manner as reactants fed into the process, fed 
into the destruction device, recaptured, or emitted, except the 
concentration of the impurity in the mass fed into the process shall 
be measured, and the mass of the impurity fed into the process shall 
be calculated as the product of the concentration of the impurity 
and the mass fed into the process. The mass of the reactant fed into 
the process may be reduced to account for the mass of the impurity.
    (8) Alternative to error calculation. As an alternative to 
calculating the relative and absolute errors associated with the 
estimate of emissions under Sec.  98.123(b), you may comply with the 
precision, accuracy, measurement and calculation frequency, and 
fluorinated GHG throughput requirements of paragraph (b)(8)(i) 
through (iv) of this section.
    (i) Mass measurements. Measure the masses specified in paragraph 
(b)(1) of this section using flowmeters, weigh scales, or a 
combination of volumetric and density measurements with accuracies 
and

[[Page 73796]]

precisions of 0.2 percent of full scale or better.
    (ii) Concentration measurements. Measure the concentrations 
specified in paragraph (b)(2) or (3) of this section, as applicable, 
using analytical methods with accuracies and precisions of 10 percent or better.
    (iii) Measurement and calculation frequency. Perform the mass 
measurements specified in paragraph (b)(1) of this section and the 
concentration measurements specified in paragraph (b)(2) or (3) of 
this section, as applicable, at least weekly, and calculate 
emissions at least weekly.
    (iv) Fluorinated-GHG throughput limit. You may use the 
alternative to the error calculation specified in paragraph (b)(8) 
of this section only if the total annual CO2-equivalent 
fluorinated GHG throughput of the process is 500,000 
mtCO2e or less. The total throughput is the sum of the 
masses of the fluorinated GHG reactants, products, and by-products 
fed into and generated by the process. To convert these masses to 
CO2e, use Equation A-1 of Sec.  98.2. For fluorinated 
GHGs whose GWPs are not listed in Table A-1 to subpart A of this 
part, use a default GWP of 2,000.

[FR Doc. 2014-28444 Filed 12-10-14; 8:45 am]
BILLING CODE 6560-50-P