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

                                       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

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\

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.

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

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

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

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.

    (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

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

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

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.

[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

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).

    (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

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