methane (CH4), nitrous oxide (N2O), and
fluorinated greenhouse gases (GHGs) as defined in this section.
* * * * *
    Process vent means a gas stream that: Is discharged through a
conveyance to the atmosphere either directly or after passing through a
control device; originates from a unit operation, including but not
limited to reactors (including reformers, crackers, and furnaces, and
separation equipment for products and recovered byproducts); and
contains or has the potential to contain GHG that is generated in the
process. Process vent does not include safety device discharges,
equipment leaks, gas streams routed to a fuel gas system or to a flare,
discharges from storage tanks.
* * * * *
    Remaining fluorinated GHGs means fluorinated GHGs that are none of
the following:
    (1) Fully fluorinated GHGs;
    (2) Saturated hydrofluorocarbons with two or fewer carbon-hydrogen
bonds;
    (3) Saturated hydrofluorocarbons with three or more carbon-hydrogen
bonds;
    (4) Saturated hydrofluoroethers and hydrochlorofluoroethers with
one carbon-hydrogen bond;
    (5) Saturated hydrofluoroethers and hydrochlorofluoroethers with
two carbon-hydrogen bonds;
    (6) Saturated hydrofluoroethers and hydrochlorofluoroethers with
three or more carbon-hydrogen bonds;
    (7) Saturated chlorofluorocarbons (CFCs);
    (8) Fluorinated formates;
    (9) Cyclic forms of the following: unsaturated perfluorocarbons
(PFCs), unsaturated HFCs, unsaturated CFCs, unsaturated
hydrochlorofluorocarbons (HCFCs), unsaturated bromofluorocarbons
(BFCs), unsaturated bromochlorofluorocarbons (BCFCs), unsaturated
hydrobromofluorocarbons (HBFCs), unsaturated
hydrobromochlorofluorocarbons (HBCFCs), unsaturated halogenated ethers,
and unsaturated halogenated esters;
    (10) Fluorinated acetates, carbonofluoridates, and fluorinated
alcohols other than fluorotelomer alcohols;
    (11) Fluorinated aldehydes, fluorinated ketones and non-cyclic
forms of the following: unsaturated PFCs, unsaturated HFCs, unsaturated
CFCs, unsaturated HCFCs, unsaturated BFCs, unsaturated BCFCs,
unsaturated HBFCs, unsaturated HBCFCs, unsaturated halogenated ethers,
and unsaturated halogenated esters;
    (12) Fluorotelomer alcohols; or
    (13) Fluorinated GHGs with carbon-iodine bonds.
* * * * *
    Saturated chlorofluorocarbons (CFCs) means fluorinated GHGs that
contain only chlorine, fluorine, and carbon and that contain only
single bonds.
* * * * *
    Unsaturated bromochlorofluoro-carbons (BCFCs) means fluorinated
GHGs that contain only bromine, chlorine, fluorine, and carbon and that
contain one or more bonds that are not single bonds.
    Unsaturated bromofluorocarbons (BFCs) means fluorinated GHGs that
contain only bromine, fluorine, and carbon and that contain one or more
bonds that are not single bonds.
    Unsaturated chlorofluoro-carbons (CFCs) means fluorinated GHGs that
contain only chlorine, fluorine, and carbon and that contain one or
more bonds that are not single bonds.
* * * * *
    Unsaturated hydrobromochlorofluoro-carbons (HBCFCs) means
fluorinated GHGs that contain only hydrogen, bromine, chlorine,
fluorine, and carbon and that contain one or more bonds that are not
single bonds.
    Unsaturated hydrobromofluoro carbons (HBFCs) means fluorinated GHGs
that contain only hydrogen, bromine, fluorine, and carbon and that
contain one or more bonds that are not single bonds.
* * * * *
0
5. Amend Sec.  98.7 by:
0
a. Adding paragraph (a);
0
b. Revising paragraphs (e)(1), (e)(18), (e)(26), (e)(27), and (i)(1);
and
0
c. Adding paragraphs (e)(50) through (52), (g)(6) and (i)(2).

Sec.  98.7  What standardized methods are incorporated by reference
into this part?

* * * * *
    (a) The following material is available for purchase from the
American National Standards Institute (ANSI), 25 W 43rd Street, 4th
Floor, New York, NY 10036, Telephone<PHONE_NUMBER>, and is also
available at the following website: http://www.ansi.org.

    (1) ANSI C12.1-2022 Electric Meters--Code for Electricity Metering,
incorporation by reference (IBR) approved for Sec.  98.24(b).
    (2) [Reserved]
* * * * *
    (e) * * *
    (1) ASTM C25-06 Standard Test Method for Chemical Analysis of
Limestone, Quicklime, and Hydrated Lime, incorporation by reference
(IBR) approved for Sec. Sec.  98.114(b), 98.174(b), 98.184(b),
98.194(c), 98.334(b), and 98.504(b).
* * * * *
    (18) ASTM D3176-89 (Reapproved 2002) Standard Practice for Ultimate
Analysis of Coal and Coke, IBR approved for Sec. Sec.  98.74(c),
98.164(b), 98.244(b), 98.284(c), 98.284(d), 98.314(c), 98.314(d), and
98.314(f).
* * * * *
    (26) ASTM D5291-02 (Reapproved 2007) Standard Test Methods for
Instrumental Determination of Carbon, Hydrogen, and Nitrogen in
Petroleum Products and Lubricants, IBR approved for Sec. Sec.
98.74(c), 98.164(b), and 98.244(b).
    (27) ASTM D5373-08 Standard Test Methods for Instrumental
Determination of Carbon, Hydrogen, and Nitrogen in Laboratory Samples
of Coal, IBR approved for Sec. Sec.  98.74(c), 98.114(b), 98.164(b),
98.174(b), 98.184(b), 98.244(b), 98.274(b), 98.284(c), 98.284(d),
98.314(c), 98.314(d), 98.314(f), 98.334(b), and 98.504(b).
* * * * *
    (50) ASTM D3176-15 Standard Practice for Ultimate Analysis of Coal
and Coke, IBR approved for Sec.  98.494(c).
    (51) ASTM D5291-16 Standard Test Methods for Instrumental
Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products
and Lubricants, IBR approved for Sec.  98.494(c).
    (52) ASTM D5373-21 Standard Test Methods for Determination of
Carbon, Hydrogen, and Nitrogen in Analysis Samples of Coal and Carbon
in Analysis Samples of Coal and Coke, IBR approved for Sec.  98.494(c).
* * * * *
    (g) * * *
    (6) CSA/ANSI ISO 27916:19, Carbon dioxide capture, transportation
and geological storage--Carbon dioxide storage using enhanced oil
recovery (CO2-EOR). Edition 1. January 2019; IBR approved
for Sec. Sec.  98.470(c), 98.480(a), 98.481(a), 98.481(b), 98.481(c),
98.482, 98.483, 98.484, 98.485, 98.486(g), 98.487, 98.488(a)(5), and
98.489.
* * * * *
    (i) * * *
    (1) Specifications, Tolerances, and Other Technical Requirements
For Weighing and Measuring Devices, NIST Handbook 44 (2009),
incorporation by reference (IBR) approved for Sec. Sec.  98.244(b) and
98.344(a).
    (2) Specifications, Tolerances, and Other Technical Requirements
For Weighing and Measuring Devices, NIST Handbook 44 (2022), IBR
approved for Sec.  98.494(b).
* * * * *
0
6. Revise table A-1 to subpart A of part 98 to read as follows:

                          Table A-1 to Subpart A of Part 98--Global Warming Potentials
                                             [100-Year time horizon]
----------------------------------------------------------------------------------------------------------------
                                                                                Global warming
                     Name                           CAS No.             Chemical formula          potential (100
                                                                                yr.)
----------------------------------------------------------------------------------------------------------------
                                             Chemical-Specific GWPs
----------------------------------------------------------------------------------------------------------------
Carbon dioxide................................        124-38-9  CO2.............................               1
Methane.......................................         74-82-8  CH4.............................      \a\ \d\ 28
Nitrous oxide.................................      10024-97-2  N2O.............................     \a\ \d\ 265
----------------------------------------------------------------------------------------------------------------
                                             Fully Fluorinated GHGs
----------------------------------------------------------------------------------------------------------------
Sulfur hexafluoride...........................       2551-62-4  SF6.............................  \a\ \d\ 23,500
Trifluoromethyl sulphur pentafluoride.........        373-80-8  SF5CF3..........................      \d\ 17,400
Nitrogen trifluoride..........................       7783-54-2  NF3.............................      \d\ 16,100
PFC-14 (Perfluoromethane).....................         75-73-0  CF4.............................   \a\ \d\ 6,630
PFC-116 (Perfluoroethane).....................         76-16-4  C2F6............................  \a\ \d\ 11,100
PFC-218 (Perfluoropropane)....................         76-19-7  C3F8............................   \a\ \d\ 8,900
Perfluorocyclopropane.........................        931-91-9  c-C3F6..........................       \d\ 9,200
PFC-3-1-10 (Perfluorobutane)..................        355-25-9  C4F10...........................   \a\ \d\ 9,200
PFC-318 (Perfluorocyclobutane)................        115-25-3  c-C4F8..........................   \a\ \d\ 9,540
Perfluorotetrahydrofuran......................        773-14-8  c-C4F8O.........................      \e\ 13,900
PFC-4-1-12 (Perfluoropentane).................        678-26-2  C5F12...........................   \a\ \d\ 8,550
PFC-5-1-14 (Perfluorohexane, FC-72)...........        355-42-0  C6F14...........................   \a\ \d\ 7,910
PFC-6-1-12....................................        335-57-9  C7F16; CF3(CF2)5CF3.............       \b\ 7,820
PFC-7-1-18....................................        307-34-6  C8F18; CF3(CF2)6CF3.............       \b\ 7,620
PFC-9-1-18....................................        306-94-5  C10F18..........................       \d\ 7,190
PFPMIE (HT-70)................................              NA  CF3OCF(CF3)CF2OCF2OCF3..........       \d\ 9,710
Perfluorodecalin (cis)........................      60433-11-6  Z-C10F18........................   \b\ \d\ 7,240
Perfluorodecalin (trans)......................      60433-12-7  E-C10F18........................   \b\ \d\ 6,290
Perfluorotriethylamine........................        359-70-6  N(C2F5)3........................      \e\ 10,300
Perfluorotripropylamine.......................        338-83-0  N(CF2CF2CF3)3...................       \e\ 9,030
Perfluorotributylamine........................        311-89-7  N(CF2CF2CF2CF3)3................       \e\ 8,490
Perfluorotripentylamine.......................        338-84-1  N(CF2CF2CF2CF2CF3)3.............       \e\ 7,260
----------------------------------------------------------------------------------------------------------------
                   Saturated Hydrofluorocarbons (HFCs) With Two or Fewer Carbon-Hydrogen Bonds
----------------------------------------------------------------------------------------------------------------
(4s,5s)-1,1,2,2,3,3,4,5-octafluorocyclopentane     158389-18-5  trans-cyc (-CF2CF2CF2CHFCHF-)...         \e\ 258
HFC-23........................................         75-46-7  CHF3............................  \a\ \d\ 12,400
HFC-32........................................         75-10-5  CH2F2...........................     \a\ \d\ 677
HFC-125.......................................        354-33-6  C2HF5...........................   \a\ \d\ 3,170
HFC-134.......................................        359-35-3  C2H2F4..........................   \a\ \d\ 1,120
HFC-134a......................................        811-97-2  CH2FCF3.........................   \a\ \d\ 1,300
HFC-227ca.....................................       2252-84-8  CF3CF2CHF2......................       \b\ 2,640
HFC-227ea.....................................        431-89-0  C3HF7...........................   \a\ \d\ 3,350
HFC-236cb.....................................        677-56-5  CH2FCF2CF3......................       \d\ 1,210
HFC-236ea.....................................        431-63-0  CHF2CHFCF3......................       \d\ 1,330

HFC-236fa.....................................        690-39-1  C3H2F6..........................   \a\ \d\ 8,060
HFC-329p......................................        375-17-7  CHF2CF2CF2CF3...................       \b\ 2,360
HFC-43-10mee..................................     138495-42-8  CF3CFHCFHCF2CF3.................   \a\ \d\ 1,650
----------------------------------------------------------------------------------------------------------------
                  Saturated Hydrofluorocarbons (HFCs) With Three or More Carbon-Hydrogen Bonds
----------------------------------------------------------------------------------------------------------------
1,1,2,2,3,3-hexafluorocyclopentane............     123768-18-3  cyc (-CF2CF2CF2CH2CH2-).........         \e\ 120
1,1,2,2,3,3,4-heptafluorocyclopentane.........      15290-77-4  cyc (-CF2CF2CF2CHFCH2-).........         \e\ 231
HFC-41........................................        593-53-3  CH3F............................     \a\ \d\ 116
HFC-143.......................................        430-66-0  C2H3F3..........................     \a\ \d\ 328
HFC-143a......................................        420-46-2  C2H3F3..........................   \a\ \d\ 4,800
HFC-152.......................................        624-72-6  CH2FCH2F........................          \d\ 16
HFC-152a......................................         75-37-6  CH3CHF2.........................     \a\ \d\ 138
HFC-161.......................................        353-36-6  CH3CH2F.........................           \d\ 4
HFC-245ca.....................................        679-86-7  C3H3F5..........................     \a\ \d\ 716
HFC-245cb.....................................       1814-88-6  CF3CF2CH3.......................       \b\ 4,620
HFC-245ea.....................................      24270-66-4  CHF2CHFCHF2.....................         \b\ 235
HFC-245eb.....................................        431-31-2  CH2FCHFCF3......................         \b\ 290
HFC-245fa.....................................        460-73-1  CHF2CH2CF3......................         \d\ 858
HFC-263fb.....................................        421-07-8  CH3CH2CF3.......................          \b\ 76
HFC-272ca.....................................        420-45-1  CH3CF2CH3.......................         \b\ 144
HFC-365mfc....................................        406-58-6  CH3CF2CH2CF3....................         \d\ 804
----------------------------------------------------------------------------------------------------------------
      Saturated Hydrofluoroethers (HFEs) and Hydrochlorofluoroethers (HCFEs) With One Carbon-Hydrogen Bond
----------------------------------------------------------------------------------------------------------------
HFE-125.......................................       3822-68-2  CHF2OCF3........................      \d\ 12,400
HFE-227ea.....................................       2356-62-9  CF3CHFOCF3......................       \d\ 6,450
HFE-329mcc2...................................     134769-21-4  CF3CF2OCF2CHF2..................       \d\ 3,070
HFE-329me3....................................     428454-68-6  CF3CFHCF2OCF3...................       \b\ 4,550
1,1,1,2,2,3,3-Heptafluoro-3-(1,2,2,2-                3330-15-2  CF3CF2CF2OCHFCF3................       \b\ 6,490
 tetrafluoroethoxy)-propane.
----------------------------------------------------------------------------------------------------------------
                             Saturated HFEs and HCFEs With Two Carbon-Hydrogen Bonds
----------------------------------------------------------------------------------------------------------------
HFE-134 (HG-00)...............................       1691-17-4  CHF2OCHF2.......................       \d\ 5,560
HFE-236ca.....................................      32778-11-3  CHF2OCF2CHF2....................       \b\ 4,240
HFE-236ca12 (HG-10)...........................      78522-47-1  CHF2OCF2OCHF2...................       \d\ 5,350
HFE-236ea2 (Desflurane).......................      57041-67-5  CHF2OCHFCF3.....................       \d\ 1,790
HFE-236fa.....................................      20193-67-3  CF3CH2OCF3......................         \d\ 979
HFE-338mcf2...................................     156053-88-2  CF3CF2OCH2CF3...................         \d\ 929
HFE-338mmz1...................................      26103-08-2  CHF2OCH(CF3)2...................       \d\ 2,620
HFE-338pcc13 (HG-01)..........................     188690-78-0  CHF2OCF2CF2OCHF2................       \d\ 2,910
HFE-43-10pccc (H-Galden 1040x, HG-11).........        E1730133  CHF2OCF2OC2F4OCHF2..............       \d\ 2,820
HCFE-235ca2 (Enflurane).......................      13838-16-9  CHF2OCF2CHFCl...................         \b\ 583
HCFE-235da2 (Isoflurane)......................      26675-46-7  CHF2OCHClCF3....................         \d\ 491
HG-02.........................................     205367-61-9  HF2C-(OCF2CF2)2-OCF2H...........   \b\ \d\ 2,730
HG-03.........................................     173350-37-3  HF2C-(OCF2CF2)3-OCF2H...........   \b\ \d\ 2,850
HG-20.........................................     249932-25-0  HF2C-(OCF2)2-OCF2H..............       \b\ 5,300
HG-21.........................................     249932-26-1  HF2C-OCF2CF2OCF2OCF2O-CF2H......       \b\ 3,890
HG-30.........................................     188690-77-9  HF2C-(OCF2)3-OCF2H..............       \b\ 7,330
1,1,3,3,4,4,6,6,7,7,9,9,10,10,12,12,13,13,15,1     173350-38-4  HCF2O(CF2CF2O)4CF2H.............       \b\ 3,630
 5-eicosafluoro-2,5,8,11,14-
 Pentaoxapentadecane.
1,1,2-Trifluoro-2-(trifluoromethoxy)-ethane...      84011-06-3  CHF2CHFOCF3.....................       \b\ 1,240
Trifluoro(fluoromethoxy)methane...............       2261-01-0  CH2FOCF3........................         \b\ 751
----------------------------------------------------------------------------------------------------------------
                        Saturated HFEs and HCFEs With Three or More Carbon-Hydrogen Bonds
----------------------------------------------------------------------------------------------------------------
HFE-143a......................................        421-14-7  CH3OCF3.........................         \d\ 523
HFE-245cb2....................................      22410-44-2  CH3OCF2CF3......................         \d\ 654
HFE-245fa1....................................      84011-15-4  CHF2CH2OCF3.....................         \d\ 828
HFE-245fa2....................................       1885-48-9  CHF2OCH2CF3.....................         \d\ 812
HFE-254cb2....................................        425-88-7  CH3OCF2CHF2.....................         \d\ 301
HFE-263fb2....................................        460-43-5  CF3CH2OCH3......................           \d\ 1
HFE-263m1; R-E-143a...........................        690-22-2  CF3OCH2CH3......................          \b\ 29
HFE-347mcc3 (HFE-7000)........................        375-03-1  CH3OCF2CF2CF3...................         \d\ 530
HFE-347mcf2...................................     171182-95-9  CF3CF2OCH2CHF2..................         \d\ 854
HFE-347mmy1...................................      22052-84-2  CH3OCF(CF3)2....................         \d\ 363
HFE-347mmz1 (Sevoflurane).....................      28523-86-6  (CF3)2CHOCH2F...................     \c\ \d\ 216
HFE-347pcf2...................................        406-78-0  CHF2CF2OCH2CF3..................         \d\ 889
HFE-356mec3...................................        382-34-3  CH3OCF2CHFCF3...................         \d\ 387
HFE-356mff2...................................        333-36-8  CF3CH2OCH2CF3...................          \b\ 17
HFE-356mmz1...................................      13171-18-1  (CF3)2CHOCH3....................          \d\ 14
HFE-356pcc3...................................     160620-20-2  CH3OCF2CF2CHF2..................         \d\ 413
HFE-356pcf2...................................      50807-77-7  CHF2CH2OCF2CHF2.................         \d\ 719
HFE-356pcf3...................................      35042-99-0  CHF2OCH2CF2CHF2.................         \d\ 446
HFE-365mcf2...................................      22052-81-9  CF3CF2OCH2CH3...................          \b\ 58
HFE-365mcf3...................................        378-16-5  CF3CF2CH2OCH3...................        \d\ 0.99
HFE-374pc2....................................        512-51-6  CH3CH2OCF2CHF2..................         \d\ 627
HFE-449s1 (HFE-7100) Chemical blend...........     163702-07-6  C4F9OCH3........................         \d\ 421

                                                   163702-08-7  (CF3)2CFCF2OCH3.................  ..............
HFE-569sf2 (HFE-7200) Chemical blend..........     163702-05-4  C4F9OC2H5.......................          \d\ 57
                                                   163702-06-5  (CF3)2CFCF2OC2H5................  ..............
HFE-7300......................................     132182-92-4  (CF3)2CFCFOC2H5CF2CF2CF3........         \e\ 405
HFE-7500......................................     297730-93-9  n-C3F7CFOC2H5CF(CF3)2...........          \e\ 13
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\ \d\ 0.49
 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
----------------------------------------------------------------------------------------------------------------
                                      Saturated Chlorofluorocarbons (CFCs)
----------------------------------------------------------------------------------------------------------------
E-R316c.......................................       3832-15-3  trans-cyc (-CClFCF2CF2CClF-)....       \e\ 4,230
Z-R316c.......................................       3934-26-7  cis-cyc (-CClFCF2CF2CClF-)......       \e\ 5,660
----------------------------------------------------------------------------------------------------------------
                                              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\ \d\ 2
Trifluoromethyl acetate.......................      74123-20-9  CH3COOCF3.......................       \b\ \d\ 2
Perfluoropropyl acetate.......................    1344118-10-0  CH3COOCF2CF2CF3.................      \b,\ \d\ 2
Perfluorobutyl acetate........................     209597-28-4  CH3COOCF2CF2CF2CF3..............       \b\ \d\ 2
Ethyl 2,2,2-trifluoroacetate..................        383-63-1  CF3COOCH2CH3....................       \b\ \d\ 1
----------------------------------------------------------------------------------------------------------------
                                               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......................         \d\ 182
2,2,3,3,4,4,5,5-Octafluorocyclopentanol.......      16621-87-7  cyc (-(CF2)4CH(OH)-)............          \d\ 13
2,2,3,3,3-Pentafluoropropanol.................        422-05-9  CF3CF2CH2OH.....................          \d\ 19
2,2,3,3,4,4,4-Heptafluorobutan-1-ol...........        375-01-9  C3F7CH2OH.......................      \b\ \d\ 34
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
----------------------------------------------------------------------------------------------------------------
                                 Non-Cyclic, 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
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
----------------------------------------------------------------------------------------------------------------
             Non-Cyclic, 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
HCFO-1233zd(Z)................................      99728-16-2  (Z)-CF3CH=CHCl..................        \e\ 0.45
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  C3H2F4; cis-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
HFO-1336mzz(E)................................      66711-86-2  (E)-CF3CH=CHCF3.................          \e\ 18
HFC-1345zfc...................................        374-27-6  C2F5CH=CH2......................        \b\ 0.09
HFO-1123......................................        359-11-5  CHF=CF2.........................       \e\ 0.005
HFO-1438ezy(E)................................      14149-41-8  (E)-(CF3)2CFCH=CHF..............         \e\ 8.2
HFO-1447fz....................................        355-08-8  CF3(CF2)2CH=CH2.................        \e\ 0.24
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
(e)-1-chloro-2-fluoroethene...................        460-16-2  (E)-CHCl=CHF....................       \e\ 0.004
3,3,3-trifluoro-2-(trifluoromethyl)prop-1-ene.        382-10-5  (CF3)2C=H2......................        \e\ 0.38
----------------------------------------------------------------------------------------------------------------
                                          Non-Cyclic, Unsaturated CFCs
----------------------------------------------------------------------------------------------------------------
CFC-1112......................................        598-88-9  CClF=CClF.......................        \e\ 0.13
CFC-1112a.....................................         79-35-6  CCl2=CF2........................       \e\ 0.021
----------------------------------------------------------------------------------------------------------------
                                   Non-Cyclic, Unsaturated Halogenated Ethers
----------------------------------------------------------------------------------------------------------------
PMVE; HFE-216.................................       1187-93-5  CF3OCF=CF2......................        \b\ 0.17
Fluoroxene....................................        406-90-6  CF3CH2OCH=CH2...................        \b\ 0.05
Methyl-perfluoroheptene-ethers................             N/A  CH3OC7F13.......................          \e\ 15
----------------------------------------------------------------------------------------------------------------
                                   Non-Cyclic, Unsaturated Halogenated Esters
----------------------------------------------------------------------------------------------------------------
Ethenyl 2,2,2-trifluoroacetate................        433-28-3  CF3COOCH=CH2....................       \e\ 0.008
Prop-2-enyl 2,2,2-trifluoroacetate............        383-67-5  CF3COOCH2CH=CH2.................       \e\ 0.007
----------------------------------------------------------------------------------------------------------------
                                        Cyclic, Unsaturated HFCs and PFCs
----------------------------------------------------------------------------------------------------------------
PFC C-1418....................................        559-40-0  c-C5F8..........................           \d\ 2
Hexafluorocyclobutene.........................        697-11-0  cyc (-CF=CFCF2CF2-).............         \e\ 126
1,3,3,4,4,5,5-heptafluorocyclopentene.........       1892-03-1  cyc (-CF2CF2CF2CF=CH-)..........          \e\ 45
1,3,3,4,4-pentafluorocyclobutene..............        374-31-2  cyc (-CH=CFCF2CF2-).............          \e\ 92
3,3,4,4-tetrafluorocyclobutene................       2714-38-7  cyc (-CH=CHCF2CF2-).............          \e\ 26
----------------------------------------------------------------------------------------------------------------
                                              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
1,1,1-trifluoropropan-2-one...................        421-50-1  CF3COCH3........................        \e\ 0.09
1,1,1-trifluorobutan-2-one....................        381-88-4  CF3COCH2CH3.....................       \e\ 0.095
----------------------------------------------------------------------------------------------------------------
                                             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
----------------------------------------------------------------------------------------------------------------
                             Remaining Fluorinated GHGs With Chemical-Specific GWPs
----------------------------------------------------------------------------------------------------------------
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).
Heptafluoroisobutyronitrile...................      42532-60-5  (CF3)2CFCN......................       \e\ 2,750
Carbonyl fluoride.............................        353-50-4  COF2............................        \e\ 0.14
----------------------------------------------------------------------------------------------------------------

                                                          Global warming
                Fluorinated GHG group \f\                 potential (100
                                                               yr.)
------------------------------------------------------------------------
   Default GWPs for Compounds for Which Chemical-Specific GWPs Are Not
                              Listed Above
------------------------------------------------------------------------
Fully fluorinated GHGs \g\..............................           9,200
Saturated hydrofluorocarbons (HFCs) with 2 or fewer                3,000
 carbon-hydrogen bonds \g\..............................
Saturated HFCs with 3 or more carbon-hydrogen bonds \g\.             840
Saturated hydrofluoroethers (HFEs) and                             6,600
 hydrochlorofluoroethers (HCFEs) with 1 carbon-hydrogen
 bond \g\...............................................
Saturated HFEs and HCFEs with 2 carbon-hydrogen bonds              2,900
 \g\....................................................
Saturated HFEs and HCFEs with 3 or more carbon-hydrogen              320
 bonds \g\..............................................
Saturated chlorofluorocarbons (CFCs) \g\................           4,900
Fluorinated formats.....................................             350
Cyclic forms of the following: unsaturated                            58
 perfluorocarbons (PFCs), unsaturated HFCs, unsaturated
 CFCs, unsaturated hydrochlorofluorocarbons (HCFCs),
 unsaturated bromofluorocarbons (BFCs), unsaturated
 bromochlorofluorocarbons (BCFCs), unsaturated
 hydrobromofluorocarbons (HBFCs), unsaturated
 hydrobromochlorofluorocarbons (HBCFCs), unsaturated
 halogenated ethers, and unsaturated halogenated esters
 \g\....................................................
Fluorinated acetates, carbonofluoridates, and                         25
 fluorinated alcohols other than fluorotelomer alcohols
 \g\....................................................
Fluorinated aldehydes, fluorinated ketones, and non-                   1
 cyclic forms of the following: unsaturated
 perfluorocarbons (PFCs), unsaturated HFCs, unsaturated
 CFCs, unsaturated HCFCs, unsaturated BFCs, unsaturated
 BCFCs, unsaturated HBFCs, unsaturated HBCFCs,
 unsaturated halogenated ethers and unsaturated
 halogenated esters \g\.................................
Fluorotelomer alcohols \g\..............................               1
Fluorinated GHGs with carbon-iodine bond(s) \g\.........               1
Other fluorinated GHGs \g\..............................           1,800
------------------------------------------------------------------------
\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\ The GWP for this compound was updated in the final rule published on
  [Date of publication of the final rule in the Federal Register] and
  effective on January 1, 2025.
\e\ The GWP for this compound was added to Table A-1 in the final rule
  published on [Date of publication of the final rule in the Federal
  Register] and effective on January 1, 2025.
\f\ 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.   98.6), whether or not they are also fluorinated
  GHGs.
\g\ The GWP for this fluorinated GHG group was updated in the final rule
  published on [Date of publication of the final rule in the Federal
  Register] and effective on January 1, 2025.

0
7. Amend table A-3 to subpart A of part 98 by adding the entries
``Additional Source Categories \a\ Applicable in Reporting Year 2025
and Future Years'', ``Geologic sequestration of carbon dioxide with
enhanced oil recovery using ISO 27916 (subpart VV).'', ``Coke calciners
(subpart WW).'', ``Calcium carbide production (subpart XX).'', and
``Caprolactam, glyoxal, and glyoxylic acid production (subpart YY).''
to the end of the table to read as follows.

    Table A-3 to Subpart A of Part 98--Source Category List for Sec.
                               98.2(a)(1)
               Source Category List for Sec.   98.2(a)(1)
------------------------------------------------------------------------

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

                              * * * * * * *
Additional Source Categories \a\ Applicable in Reporting Year 2025 and
 Future Years:
    Geologic sequestration of carbon dioxide with enhanced oil recovery
     using ISO 27916 (subpart VV).
    Coke calciners (subpart WW).
    Calcium carbide production (subpart XX).
    Caprolactam, glyoxal, and glyoxylic acid production (subpart YY).
------------------------------------------------------------------------
\a\ Source categories are defined in each applicable subpart.

0
8. Amend table A-4 to subpart A of part 98 by adding the entries
``Additional Source Categories \a\ Applicable in Reporting Year 2025
and Future Years.'' and ``Ceramics manufacturing facilities, as
determined under Sec.  98.XXXX (subpart ZZ)'', to the end of the table.

    Table A-4 to Subpart A of Part 98--Source Category List for Sec.
                               98.2(a)(2)
------------------------------------------------------------------------

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

                              * * * * * * *
Additional Source Categories\a\ Applicable in Reporting Year 2025 and
 Future Years:
    Ceramics manufacturing facilities, as determined under Sec.
     98.XXXX (subpart ZZ)
------------------------------------------------------------------------
\a\ Source categories are defined in each applicable subpart.

0
9. Add subpart B to read as follows:
Subpart B--Energy Consumption
Sec.
98.20 Definition of the source category.
98.21 Reporting threshold.
98.22 GHGs to report.
98.23 Calculating GHG emissions.
98.24 Monitoring and QA/QC requirements.
98.25 Procedures for estimating missing data.
98.26 Data reporting requirements.
98.27 Records that must be retained.
98.28 Definitions.

Sec.  98.20  Definition of the source category.

    (a) The energy consumption source category consists of direct
emitting facilities that (1) purchase metered electricity or metered
thermal energy products; (2) are required to report under Sec. Sec.
98.2(a)(1), (2), or (3) or are

required to resume reporting under Sec. Sec.  98.2(i)(1), (2), or (3);
and (3) are not eligible to discontinue reporting under the provisions
at Sec. Sec.  98.2(i)(1), (2), or (3).
    (b) This source category does not include:
    (1) Purchases of fuel and the associated direct emissions from the
use of that fuel on site.
    (2) Electricity and thermal energy products that are not subject to
purchasing agreements.

Sec.  98.21  Reporting threshold.

    You must report the quantity of purchased electricity and thermal
energy products in accordance with the reporting requirements of Sec.
98.26 of this subpart.

Sec.  98.22  GHGs to report.

    This subpart does not require the reporting of either direct or
indirect greenhouse gas emissions.

Sec.  98.23  Calculating GHG emissions.

    This subpart does not require the calculation of either direct or
indirect greenhouse gas emissions.

Sec.  98.24  Monitoring and QA/QC requirements.

    Facilities subject to this subpart must develop a written Metered
Energy Monitoring Plan (MEMP) for purchased electricity and thermal
energy products in accordance with paragraph (a) of this section. The
MEMP may rely on references to existing corporate documents (e.g.,
purchasing agreements, standard operating procedures, quality assurance
programs under appendix F to 40 CFR part 60 or appendix B to 40 CFR
part 75, and other documents) provided that the elements required by
paragraphs (a)(1) through (7) of this section are easily recognizable.
Facilities must complete QA/QC requirements in accordance with
paragraphs (b) and (c) of this section.
    (a) MEMP Requirements. At a minimum, the MEMP must specify
recordkeeping activities at the same frequency as billing statements
from the energy delivery service provider and must include the elements
listed in this paragraph (a).
    (1) Identification of positions of responsibility (i.e., job
titles) for collection of the energy consumption data.
    (2) The identifier of each meter shown on periodic billing
statements with a description of the portions of the facility served by
the meter and a photograph that shows the meter identifier,
manufacturer's name, and model number.
    (3) For each meter, an indication of the billing frequency (e.g.,
monthly, quarterly, or semi-annually).
    (4) A copy of one typical billing statement that includes all pages
for each meter with the meter identifier, the name of the energy
delivery service provider, the name of the energy supply service
provider (if applicable in deregulated states), the dates of service,
the usage, and the rate descriptor.
    (5) An indication of whether each electricity meter conforms to the
accuracy specifications required by Sec.  98.24(b). The MEMP must
include one of the potential outcomes listed in paragraphs (a)(5)(i)
through (iii) of this section for each electricity meter serving the
facility:
    (i) Manufacturer's certification that the electricity meter model
number conforms to the accuracy specifications required by Sec.
98.24(b), with a copy of the associated manufacturer's technical data.
If this option is selected the owner or operator must include a picture
of the meter with a copy of the technical data from the manufacturer
indicating conformance to the accuracy specifications required by Sec.
98.24(b).
    (ii) Certification letter from the electricity delivery service
provider indicating the meter conforms to the accuracy specifications
required by Sec.  98.24(b).
    (iii) An indication that either the conformance status of the meter
to the accuracy specifications required by Sec.  98.24(b) could not be
determined, or the meter was determined to have accuracy specifications
less stringent than required by Sec.  98.24(b), according to paragraphs
(a)(5)(iii)(A) through (C) of this section.
    (A) A copy of the certified letter sent to the electricity delivery
service provider, requesting installation of a meter that conforms to
the accuracy specifications required by Sec.  98.24(b).
    (B) The return receipt for the certified letter.
    (C) Any correspondence from the electricity delivery service
provider related to the request.
    (6) For both purchased electricity and thermal energy product
meters, an explanation of the processes and methods used to collect the
necessary data to report the total annual usage of purchased
electricity in kWh and the total annual usage of purchased thermal
energy products in mmBtu. For thermal energy products the plan must
include a clear procedure and example of how measured data are
converted to mmBtu.
    (7) Description of the procedures and methods that are used for
quality assurance, maintenance, and repair of all monitoring systems,
flow meters, and other instrumentation used to collect the energy
consumption data reported under this part.
    (8) The facility must revise the MEMP as needed to reflect changes
in production processes, monitoring instrumentation, and quality
assurance procedures; or to improve procedures for the maintenance and
repair of monitoring systems to reduce the frequency of monitoring
equipment downtime.
    (9) Upon request by the Administrator, the facility must make all
information that is collected in conformance with the MEMP available
for review. Electronic storage of the information in the plan is
permissible, provided that the information can be made available in
hard copy upon request.
    (b) Quality assurance for purchased electricity monitoring. The
facility must determine if each electricity meter conforms to ANSI
C12.1-2022: Electric Meters--Code for Electricity Metering
(incorporated by reference, see Sec.  98.7) or another similar
consensus standard with accuracy specifications at least as stringent
as the ANSI standard, using one of the methods under paragraphs (b)(1)
through (3) of this section.
    (1) The facility may identify the manufacturer and model number of
the meter and obtain a copy of the meter's technical reference guide or
technical data sheet indicating the meter's conformance with the
requirements of Sec.  98.24(b). If this option is selected the facility
must include a picture of the meter with a copy of the technical data
from the manufacturer indicating conformance with the requirements of
Sec.  98.24(b).
    (2) The facility may obtain a certification from the electricity
delivery service provider that owns the meter indicating that the meter
conforms to the accuracy specifications required by Sec.  98.24(b).
    (3) If the facility determines that either the conformance status
of the meter under Sec.  98.24(b) could not be determined, or that the
meter does not conform to the accuracy specifications required by Sec.
98.24(b), the facility must submit, via certified mail (with return
receipt requested) to the electricity delivery service provider that
owns the meter, a request that the existing meter be replaced by an
electricity meter that meets the accuracy specifications required by
Sec.  98.24(b). The facility must maintain in the MEMP a copy of the
written request, the return receipt, and any correspondence from the
electricity delivery service provider. Any meters that do not conform
to the accuracy specifications required by Sec.  98.24(b)

must be flagged as such in the MEMP, until such time that they are
replaced with meters that conform to the accuracy specifications
required by Sec.  98.24(b).
    (c) Quality assurance for purchased thermal energy product
monitoring. The facility must contact the energy delivery service
provider of each purchased thermal energy product and request a copy of
the most recent audit of the accuracy of each meter referenced in the
purchasing agreement. If an audit of the meter has never been completed
or if the audit is more than five years old, the facility must request
that the energy delivery service provider complete an energy audit
consistent with the terms of the purchasing agreement. If the
purchasing agreement does not include provisions for periodic audits of
the meter, the facility must complete an audit of the meter using a
qualified metering specialist with knowledge of the associated thermal
medium. Every five years an audit of the meter must be completed. If
the audit indicates that the meter is producing readings with errors
greater than specified by Sec.  98.3(i)(2) or (3), the meter must be
repaired or replaced and retested to demonstrate compliance with the
specifications at Sec.  98.3(i)(2) or (3).

Sec.  98.25  Procedures for estimating missing data.

    For both purchased electricity and thermal energy products, a
facility with missing billing statements must request replacement
copies of the statements from its energy delivery service provider. If
the energy delivery service provider is unable to provide replacement
copies of billing statements, the facility must estimate the missing
data based on the best available estimate of the energy use, based on
all available data which may impact energy usage (e.g., processing
rates, operating hours, etc.). The facility must document and keep
records of the procedures used for all missing data estimates.

Sec.  98.26  Data reporting requirements.

    In addition to the facility-level information required under Sec.
98.3, the annual GHG report must contain the data specified in
paragraphs (a) through (m) of this section for each purchased
electricity and thermal energy product meter located at the facility.
    (a) The state in which each meter is located.
    (b) The locality of the meter. You must report the county in which
each meter is located. If the meter is not located in a county (e.g.,
meters in Alexandria, Virginia), you must report the city in which the
meter is located.
    (c) Energy delivery service provider's name (i.e., the name of the
entity to whom the purchasing facility will send payment).
    (d) An identifying number for the energy delivery service provider
as specified in paragraph (d)(1) or (2) of this section:
    (1) For purchased electricity, the zip code associated with the
payment address for the provider.
    (2) For purchased thermal energy products, the public GHGRP
facility identifier of the energy supply service provider. If the
provider does not have an assigned GHGRP facility identifier, report
the zip code for the physical location in which the thermal energy
product was produced.
    (e) Electricity supply service provider's name. This reporting
requirement applies only to purchased electricity in states with
deregulated markets where the electricity billing statements have
separate line items for electricity delivery services and electricity
supply services. In these states, the electricity delivery service
provider may be a different entity from the electricity supply service
provider.
    (f) Meter number. This is the meter number that appears on each
billing statement.
    (g) Annual sequence of bill. This is a number from 1 to 12 for
monthly billing cycles, from 1 to 4 for quarterly billing cycles, and 1
to 2 for semi-annual billing cycles.
    (h) Start date(s) of period(s) billed. This is the date designating
when the usage period began for each billing statement. For monthly
billing cycles, the annual report would include 12 start dates. For
quarterly billing cycles the annual report would include four start
dates. For semi-annual billing cycles the annual report would include
two start dates.
    (i) End date(s) of period(s) billed. This is the date designating
when the usage period ends for each billing statement. For monthly
billing cycles, the annual report would include 12 end dates. For
quarterly billing cycles the annual report would include four end
dates. For semi-annual billing cycles the annual report would include
two end dates.
    (j) Quantities of purchased electricity and thermal energy products
as specified in paragraphs (j)(1) through (3) of this section,
excluding any quantities described in paragraph (j)(4) of this section.
    (1) Purchased electricity. You must report the kWh used as reported
on each periodic billing statement received during the reporting year.
For each meter on each electricity billing statement received during
the reporting period, the usage will be clearly designated for the
month, quarter, or semi-annual billing period. This value may be listed
on the billing statement in megawatt-hours (MWh). To convert values on
billing statements that report usage in MWh to kWh, the MWh value
should be multiplied by 1,000.
    (2) Purchased thermal energy products. You must report the quantity
of thermal energy products purchased as reported on each periodic
billing statement received during the reporting year, converted to
mmBtu. This value must be calculated in accordance with the method
described and documented in the MEMP.
    (3) Allocation. If the periodic billing statement specified in
paragraph (j)(1) or (2) of this section spans two reporting years, you
must allocate the quantity of purchased electricity and thermal energy
products using either the method specified in paragraph (j)(3)(i) or
(ii) of this section:
    (i) You may allocate the purchased electricity and thermal energy
products to each reporting year based on operational knowledge of the
industrial processes for which energy is purchased, or
    (ii) You may allocate to each reporting year the portion of
purchased electricity and thermal energy products in the periodic
billing statement proportional to the number of days of service in each
reporting year.
    (4) Excluded quantities. For the purpose of reporting under this
paragraph (j), the facility may exclude any electricity that is
generated outside the facility and delivered into the facility with
final destination and usage outside of the facility. The facility may
also exclude electricity consumed by operations or activities that do
not support any activities reporting direct emissions in this part. The
excluded quantities may be estimated based on company records or
engineering judgment.
    (k) Rate descriptor for each electricity billing statement. Each
electricity billing statement should have a statement that describes
the rate plan in effect for the billing location. This rate descriptor
can indicate if the customer is billed based on a time-of-use rate or
if the customer is purchasing a renewable energy product. For example,
a typical rate statement could be ``Your current rate is Large
Commercial Time of Use (LC-TOUD).'' In this case the GHGRP reporter
would enter ``LC-TOUD'' as the rate descriptor for the associated
billing period.

    (l) Facilities subject to multiple direct emitting part 98 subparts
must report, for the quantities reported under paragraph (j) of this
section, the decimal fraction of purchased electricity or thermal
energy products attributable to each subpart. The fraction may be
estimated based on company records or engineering judgment.
    (m) Copy of one billing statement per energy delivery service
provider of purchased electricity or thermal energy products, as
specified in paragraphs (m)(1) through (3) of this section.
    (1) The first annual report under this subpart must include an
electronic copy of all pages of one billing statement received by the
facility from each energy delivery service provider of purchased
electricity or thermal energy products.
    (2) If the facility changes or adds one or more energy delivery
service providers after the first reporting year, the annual report
must include an electronic copy of all pages of one billing statement
received from each new energy delivery service provider for only the
first reporting year of each new purchasing agreement.
    (3) The electronic copy specified in paragraph (m)(2) of this
section must be submitted in the format specified in the reporting
instructions published for the reporting year.

Sec.  98.27  Records that must be retained.

    (a) Copies of all purchased electricity or thermal energy product
billing statements.
    (b) The results of all required certification and quality assurance
tests referenced in the MEMP for all purchased electricity or thermal
energy product meters used to develop the energy consumption data
reported under this part.
    (c) Maintenance records for all monitoring systems, flow meters,
and other instrumentation used to provide data on consumption of
purchased electricity or thermal energy products under this part.

Sec.  98.28  Definitions.

    Except as provided in this section, all terms used in this part
shall have the same meaning given in the Clean Air Act and subpart A of
this part.
    Indirect emissions are an attribute of activities that consume
energy and are intended to provide an estimate of the quantity of
greenhouse gases associated with the production and delivery of
purchased electricity and thermal energy products delivered to the
energy consumer. Indirect emissions are released to the atmosphere at a
facility that is owned by the energy supply service provider, but the
indirect emissions attribute is associated with the consuming activity.
    Metered means, as applied to electricity, that the quantity of
electricity is determined by an electricity meter installed at the
location of service by an electricity delivery service provider who
periodically conducts meter readings for billing purposes. As applied
to thermal energy products, metered means that the thermal energy
product is metered in accordance with the purchasing agreement with
additional information, as necessary, such as design or operating
temperature, pressure, and mass flow rate to determine the supplied
quantity of thermal energy products.
    Purchased electricity means metered electricity that is delivered
to a facility subject to this subpart.
    Purchasing agreement means, for purchased electricity, the terms
and conditions governing the provision of electric services by an
electricity delivery service provider to a consumer seeking electric
service (i.e., the applicable part 98 source). For purchased thermal
energy products, this term means a contract, such as a steam purchase
contract, between a supplier of thermal energy products and a consumer
of thermal energy products (i.e., the applicable part 98 source).
Purchasing agreements include specific provisions for metering the
purchased electricity or thermal energy products.
    Thermal energy products means metered steam, hot water, hot oil,
chilled water, refrigerant, or any other medium used to transfer
thermal energy and delivered to a facility subject to this subpart.

Subpart C--General Stationary Fuel Combustion Sources

0
10. Amend Sec.  98.36 by adding paragraphs (b)(12), (c)(1)(xii),
(c)(2)(xii), and (c)(3)(xi) to read as follows:

Sec.  98.36  Data reporting requirements.

* * * * *
    (b) * * *
    (12) An indication of whether the unit is an electricity generating
unit.
    (c) * * *
    (1) * * *
    (xii) An indication of whether any unit in the group is an
electricity generating unit, and, if so, an estimate of the group's
total reported emissions attributable to electricity generation
(expressed as a decimal fraction). This estimate may be based on
engineering estimates.
    (2) * * *
    (xii) An indication of whether any unit in the group is an
electricity generating unit, and, if so, an estimate of the group's
total reported emissions attributable to electricity generation
(expressed as a decimal fraction). This estimate may be based on
engineering estimates.
    (3) * * *
    (xii) An indication of whether any unit in the group is an
electricity generating unit, and, if so, an estimate of the group's
total reported emissions attributable to electricity generation
(expressed as a decimal fraction). This estimate may be based on
engineering estimates.
* * * * *

Subpart F--Aluminum Production

0
11. Amend Sec.  98.66 by revising paragraphs (a) and (g) to read as
follows:

Sec.  98.66  Data reporting requirements.

* * * * *
    (a) Annual production capacity (tons).
* * * * *
    (g) Annual operating days per potline.
* * * * *

Subpart G--Ammonia Manufacturing

0
12. Amend Sec.  98.76 by adding paragraph (b)(16) to read as follows:

Sec.  98.76  Data reporting requirements.

* * * * *
    (b) * * *
    (16) Annual quantity of excess hydrogen produced that is not
consumed through the production of ammonia (metric tons).

Subpart I--Electronics Manufacturing

Sec.  98.98  [Amended]

0
13. Amend Sec.  98.98 by removing the definition for ``Fluorinated heat
transfer fluids.''
0
14. Revise table I-16 of subpart I of part 98 to read as follows:

   Table I-16 to Subpart I of Part 98--Default Emission Destruction or
     Removal Efficiency (DRE) Factors for Electronics Manufacturing
------------------------------------------------------------------------
         Manufacturing type/process type/gas            Default DRE  (%)
------------------------------------------------------------------------
MEMS, LCDs, and PV manufacturing.....................                 60
Semiconductor Manufacturing..........................  .................
CF4..................................................                 87
CH3F.................................................                 98
CHF3.................................................                 97
CH2F2................................................                 98
C4F8.................................................                 93
C4F8O................................................                 93
C5F8.................................................                 97
C4F6.................................................                 95
C3F8.................................................                 98
C2HF5................................................                 97
C2F6.................................................                 98
SF6..................................................                 95
NF3..................................................                 96
All other carbon-based fluorinated GHGs used in                       60
 Semiconductor Manufacturing.........................
N2O Processes........................................  .................
CVD and all other N2O-using processes................                 60
------------------------------------------------------------------------

0
15. Revise table I-18 of subpart I of part 98 to read as follows:

     Table I-18 to Subpart I of Part 98--Default Factors for Gamma ([gamma]i,p and [gamma]k,i,p) for Semiconductor Manufacturing and for MEMS and PV
                                     Manufacturing Under Certain Conditions * for Use With the Stack Testing Method
--------------------------------------------------------------------------------------------------------------------------------------------------------
                      Process type                                In-situ thermal or in-situ plasma cleaning                Remote plasma cleaning
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                c-C4F8
                          Gas                               CF4         C2F6                       NF3        SF6         C3F8         CF4        NF3
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                 If manufacturing wafer sizes <=200 mm AND manufacturing 300 mm (or greater) wafer sizes
--------------------------------------------------------------------------------------------------------------------------------------------------------
[gamma]i...............................................         13          9.3           4.7          14         11           NA          NA        5.7
[gamma]CF4,i...........................................         NA           23           6.7          63        8.7           NA          NA         58
[gamma]C2F6,i..........................................         NA           NA            NA          NA        3.4           NA          NA         NA
[gamma]CHF3,i..........................................         NA           NA            NA          NA         NA           NA          NA       0.24
[gamma]CH2F2,i.........................................         NA           NA            NA          NA         NA           NA          NA        111
[gamma]CH3F,i..........................................         NA           NA            NA          NA         NA           NA          NA         33
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                       If manufacturing <=200 mm OR manufacturing 300 mm (or greater) wafer sizes
--------------------------------------------------------------------------------------------------------------------------------------------------------
[gamma]i (<=200 mm wafer size).........................         13          9.3           4.7         2.9         11           NA          NA        1.4
[gamma]CF4,i (<=200 mm wafer size).....................         NA           23           6.7         110        8.7           NA          NA         36
[gamma]C2F6,i (<=200 mm wafer size)....................         NA           NA            NA          NA        3.4           NA          NA         NA
[gamma]i (300 mm wafer size)...........................         NA           NA            NA          26         NA           NA          NA         10
[gamma]CF4,i (300 mm wafer size).......................         NA           NA            NA          17         NA           NA          NA         80
[gamma]C2F6,i (300 mm wafer size)......................         NA           NA            NA          NA         NA           NA          NA         NA
[gamma]CHF3,i (300 mm wafer size)......................         NA           NA            NA          NA         NA           NA          NA       0.24
[gamma]CH2F2,i (300 mm wafer size).....................         NA           NA            NA          NA         NA           NA          NA        111
[gamma]CH3F,i (300 mm wafer size)......................         NA           NA            NA          NA         NA           NA          NA         33
--------------------------------------------------------------------------------------------------------------------------------------------------------
* If you manufacture MEMS or PVs and use semiconductor tools and processes, you may use the corresponding [gamma] in this table. For all other tools and
  processes, a default [gamma] of 10 must be used.

Subpart N--Glass Production

0
16. Amend Sec.  98.146 by:
0
a. Revising paragraphs (a) introductory text and (a)(1);
0
b. Adding paragraph (a)(3); and
0
c. Revising paragraphs (b)(4) and (9).
    The revisions and additions read as follows:

Sec.  98.146  Data reporting requirements.

* * * * *
    (a) If a CEMS is used to measure CO2 emissions, then you
must report under this subpart the relevant information required under
Sec.  98.36 for the Tier 4 Calculation Methodology and the following
information specified in paragraphs (a)(1) through (3) of this section:
    (1) Annual quantity of each carbonate-based raw material (tons)
charged to each continuous glass melting furnace and for all furnaces
combined.
* * * * *
    (3) Annual quantity (tons), by glass type, of recycled scrap glass
(cullet) charged to each glass melting furnace and for all furnaces
combined.
    (b) * * *
    (4) Annual quantity (tons), by glass type, of recycled scrap glass
(cullet)

charged to each glass melting furnace and for all furnaces combined.
* * * * *
    (9) The number of times in the reporting year that missing data
procedures were followed to measure monthly quantities of carbonate-
based raw materials, recycled scrap glass (cullet), or mass fraction of
the carbonate-based minerals for any continuous glass melting furnace
(months).
0
17. Amend Sec.  98.147 by:
0
a. Revising paragraph (a) introductory text;
0
b. Adding paragraph (a)(3);
0
c. Revising paragraphs (b) introductory text and (b)(1) and (2);
0
d. Redesignating paragraphs (b)(3) through (5) as paragraphs (b)(4)
through (6), respectively; and
0
e. Adding new paragraph (b)(3).
    The revisions and additions read as follows:

Sec.  98.147  Records that must be retained.

* * * * *
    (a) If a CEMS is used to measure emissions, then you must retain
the records required under Sec.  98.37 for the Tier 4 Calculation
Methodology and the following information specified in paragraphs
(a)(1) through (a)(3) of this section:
* * * * *
    (3) Monthly amount (tons) of recycled scrap glass (cullet) charged
to each glass melting furnace, by glass type.
    (b) If process CO2 emissions are calculated according to
the procedures specified in Sec.  98.143(b), you must retain the
records in paragraphs (b)(1) through (b)(6) of this section.
    (1) Monthly glass production rate for each continuous glass melting
furnace, by glass type (tons).
    (2) Monthly amount of each carbonate-based raw material charged to
each continuous glass melting furnace (tons).
    (3) Monthly amount (tons) of recycled scrap glass (cullet) charged
to each glass melting furnace, by glass type.
    (4) Data on carbonate-based mineral mass fractions provided by the
raw material supplier for all raw materials consumed annually and
included in calculating process emissions in Equation N-1 of this
subpart, if applicable.
    (5) Results of all tests, if applicable, used to verify the
carbonate-based mineral mass fraction for each carbonate-based raw
material charged to a continuous glass melting furnace, including the
data specified in paragraphs (b)(5)(i) through (v) of this section.
    (i) Date of test.
    (ii) Method(s), and any variations of the methods, used in the
analyses.
    (iii) Mass fraction of each sample analyzed.
    (iv) Relevant calibration data for the instrument(s) used in the
analyses.
    (v) Name and address of laboratory that conducted the tests.
    (6) The decimal fraction of calcination achieved for each
carbonate-based raw material, if a value other than 1.0 is used to
calculate process mass emissions of CO2.
* * * * *

Subpart P--Hydrogen Production

0
18. Revise Sec.  98.160 to read as follows:

Sec.  98.160  Definition of the source category.

    (a) A hydrogen production source category consists of facilities
that produce hydrogen gas as a product.
    (b) This source category comprises process units that produce
hydrogen by reforming, gasification, oxidation, reaction, or other
transformations of feedstocks except the processes listed in paragraph
(b)(1) or (2) of this section.
    (1) Any process unit for which emissions are reported under another
subpart of this part. This includes, but is not necessarily limited to:
    (A) Ammonia production units for which emissions are reported under
subpart G.
    (B) Catalytic reforming units at petroleum refineries that
transform naphtha into higher octane aromatics for which emissions are
reported under subpart Y.
    (C) Petrochemical process units for which emissions are reported
under subpart X.
    (2) Any process unit that only separates out diatomic hydrogen from
a gaseous mixture and is not associated with a unit that produces
hydrogen created by transformation of one or more feedstocks, other
than those listed in paragraph (b)(1) of this section.
    (c) This source category includes the process units that produce
hydrogen and stationary combustion units directly associated with
hydrogen production (e.g., reforming furnace and hydrogen production
process unit heater).
0
19. Amend Sec.  98.162 by revising paragraph (a) to read as follows:

Sec.  98.162  GHGs to report.

* * * * *
    (a) CO2 emissions from each hydrogen production process
unit, including fuel combustion emissions accounted for in the
calculation methodologies in Sec.  98.163.
* * * * *
0
20. Amend Sec.  98.163 by revising paragraph (c) to read as follows:

Sec.  98.163  Calculating GHG emissions.

* * * * *
    (c) If GHG emissions from a hydrogen production process unit are
vented through the same stack as any combustion unit or process
equipment that reports CO2 emissions using a CEMS that
complies with the Tier 4 Calculation Methodology in subpart C of this
part (General Stationary Fuel Combustion Sources), then the owner or
operator shall report under this subpart the combined stack emissions
according to the Tier 4 Calculation Methodology in Sec.  98.33(a)(4)
and all associated requirements for Tier 4 in subpart C of this part
(General Stationary Fuel Combustion Sources). If GHG emissions from a
hydrogen production process unit using a CEMS that complies with the
Tier 4 Calculation Methodology in subpart C of this part (General
Stationary Fuel Combustion Sources) does not include combustion
emissions from the hydrogen production unit (i.e., the hydrogen
production unit has separate stacks for process and combustion
emissions), then the calculation methodology in paragraph (b) of this
section shall be used considering only fuel inputs to calculate and
report CO2 emissions from fuel combustion related to the
hydrogen production unit.
0
21. Revise Sec.  98.166 to read as follows:

Sec.  98.166  Data reporting requirements.

    In addition to the information required by Sec.  98.3(c), each
annual report must contain the information specified in paragraphs (a)
and (b) of this section, as appropriate.
    (a) If a CEMS is used to measure CO2 emissions, then you
must report the relevant information required under Sec.  98.36 for the
Tier 4 Calculation Methodology for each CEMS monitoring location.
    (b) For each hydrogen production process unit, report:
    (1) Unit identification number and the information about the unit
specified in paragraphs (b)(1)(i) and (ii) of this section:
    (i) The type of hydrogen production unit (steam methane reformer
(SMR) only, SMR followed by water gas shift reaction (WGS), partial
oxidation (POX) only, POX followed by WGS, water electrolysis, brine
electrolysis, other (specify)); and,
    (ii) The type of hydrogen purification method (pressure swing
adsorption, amine adsorption, membrane separation, other (specify),
none).

    (2) Annual CO2 emissions (metric tons) and the
calculation methodology (CEMS for single hydrogen production unit; CEMS
on a common stack for multiple hydrogen production units; CEMS on a
common stack with hydrogen production unit(s) and other sources; CEMS
measuring only process emissions plus fuel combustion emissions
calculated using Equations P-1 through P-3; material balance using
Equations P-1 through P-3 only; material balance using Equations P-1
through P-4).
    (i) If either a CEMS on a common stack for multiple hydrogen
production units or CEMS on a common stack for hydrogen production
unit(s) and other sources is used, you must also report the estimated
decimal fraction of the total annual CO2 emissions from the
CEMS monitoring location (estimated using engineering estimates or best
available data) attributable to this hydrogen production unit.
    (ii) If the method selected is CEMS measuring process emissions
alone plus mass balance for hydrogen production unit fuel combustion
using Equations P-1 through P-3, you must also report the annual
CO2 emissions (metric tons) calculated for this hydrogen
production unit's fuel combustion using Equations P-1 through P-3.
    (3) The following quantities of hydrogen exiting the hydrogen
production unit:
    (i) Annual quantity of hydrogen produced by reforming,
gasification, oxidation, reaction, or other transformation of
feedstocks (metric tons).
    (ii) Annual quantity of hydrogen that is purified only (metric
tons). This quantity may be assumed to be equal to the annual quantity
of hydrogen in the feedstocks to the hydrogen production unit.
    (4) Annual quantity of ammonia intentionally produced as a desired
product, if applicable (metric tons).
    (5) If a material balance method is used, name and annual quantity
(metric tons) of each carbon-containing fuel and feedstock.
    (6) Quantity of CO2 collected and transferred off site
in either gas, liquid, or solid forms, following the requirements of
subpart PP of this part.
    (7) Annual quantity of carbon other than CO2 or methanol
collected and transferred off site in either gas, liquid, or solid
forms (metric tons carbon).
    (8) Annual quantity of methanol intentionally produced as a desired
product, if applicable, (metric tons) for each process unit.
    (9) Annual net quantity of steam consumed by the unit, (metric
tons). Include steam purchased or produced outside of the hydrogen
production unit. If the hydrogen production unit is a net producer of
steam, enter the annual net quantity of steam consumed by the unit as a
negative value.
0
22. Amend Sec.  98.167 by revising paragraph (b), removing and
reserving paragraph (c), and revising paragraph (d).

Sec.  98.167  Records that must be retained.

* * * * *
    (b) You must retain records of all analyses and calculations
conducted to determine the values reported in Sec.  98.166(b).
    (c) [Reserved]
    (d) The owner or operator must document the procedures used to
ensure the accuracy of the estimates of fuel and feedstock usage in
Sec.  98.163(b), including, but not limited to, calibration of weighing
equipment, fuel and feedstock flow meters, and other measurement
devices. The estimated accuracy of measurements made with these devices
must also be recorded, and the technical basis for these estimates must
be provided.
* * * * *

Subpart Y--Petroleum Refineries

0
23. Amend Sec.  98.250 by revising paragraph (c) to read as follows:

Sec.  98.250  Definition of source category.

* * * * *
    (c) This source category consists of the following sources at
petroleum refineries: Catalytic cracking units; fluid coking units;
delayed coking units; catalytic reforming units; asphalt blowing
operations; blowdown systems; storage tanks; process equipment
components (compressors, pumps, valves, pressure relief devices,
flanges, and connectors) in gas service; marine vessel, barge, tanker
truck, and similar loading operations; flares; and sulfur recovery
plants.

Sec.  98.252  [Amended]

0
24. Amend Sec.  98.252 by removing and reserving paragraphs (e) and
(i).
0
25. Amend Sec.  98.253 by:
0
a. Revising parameter ``CO2'' of Equation Y-9 in paragraph
(c)(4) and parameter ``CO2'' of Equation Y-10 in paragraph
(c)(5); and
0
b. Removing and reserving paragraph (g).
    The revisions read as follows:

Sec.  98.253  Calculating GHG emissions.

* * * * *
    (c) * * *
    (4) * * *

CO2 = Emission rate of CO2 from coke burn-off
calculated in paragraphs (c)(1), (c)(2), (e)(1), or (e)(2) of this
section, as applicable (metric tons/year).
* * * * *
    (5) * * *

CO2 = Emission rate of CO2 from coke burn-off
calculated in paragraphs (c)(1), (c)(2), (e)(1), or (e)(2) of this
section, as applicable (metric tons/year).
* * * * *
    (g) [Removed and Reserved]

Sec.  98.254  [Amended]

0
26. Amend Sec.  98.254 by removing and reserving paragraphs (h) and
(i).

Sec.  98.255  [Amended]

0
27. Amend Sec.  98.255 by removing and reserving paragraph (d).
0
28. Amend Sec.  98.256 by:
0
a. Removing and reserving paragraphs (b) and (i); and
0
b. Revising paragraph (j)(2).
    The revisions read as follows:

Sec.  98.256  Data reporting requirements.

* * * * *
    (b) [Removed and Reserved]
* * * * *
    (i) [Removed and Reserved]
* * * * *
    (j) * * *
    (2) Maximum rated throughput of the unit, in metric tons asphalt/
stream day.
* * * * *
0
29. Amend Sec.  98.257 by:
0
a. Revising paragraphs (b)(16) through (19); and
0
b. Removing and reserving paragraphs (b)(27) through (31).
    The revisions read as follows:

Sec.  98.257  Records that must be retained.

* * * * *
    (b) * * *
    (16) Value of unit-specific CH4 emission factor,
including the units of measure, for each catalytic cracking unit,
traditional fluid coking unit, and catalytic reforming unit
(calculation method in Sec.  98.253(c)(4)).
    (17) Annual activity data (e.g., input or product rate), including
the units of measure, in units of measure consistent with the emission
factor, for each catalytic cracking unit, traditional fluid coking
unit, and catalytic reforming unit (calculation method in Sec.
98.253(c)(4)).
    (18) Value of unit-specific N2O emission factor,
including the units of measure, for each catalytic cracking unit,
traditional fluid coking unit, and catalytic reforming unit
(calculation method in Sec.  98.253(c)(5)).
    (19) Annual activity data (e.g., input or product rate), including
the units of

measure, in units of measure consistent with the emission factor, for
each catalytic cracking unit, traditional fluid coking unit, and
catalytic reforming unit (calculation method in Sec.  98.253(c)(5)).
* * * * *
    (27) [Removed and Reserved]
    (28) [Removed and Reserved]
    (29) [Removed and Reserved]
    (30) [Removed and Reserved]
    (31) [Removed and Reserved]
* * * * *

Subpart AA--Pulp and Paper Manufacturing

0
30. Amend Sec.  98.273 by:
0
a. Revising introductory paragraph (a) and paragraphs (a)(1) and (2);
0
b. Adding paragraph (a)(4);
0
c. Revising introductory paragraph (b) and paragraphs (b)(1) and (2);
0
d. Adding paragraph (b)(5);
0
e. Revising introductory paragraph (c) and paragraphs (c)(1) and (2);
and
0
f. Adding paragraph (c)(4).
    The revisions and additions read as follows:

Sec.  98.273  Calculating GHG emissions.

    (a) For each chemical recovery furnace located at a kraft or soda
facility, you must determine CO2, biogenic CO2,
CH4, and N2O emissions using the procedures in
paragraphs (a)(1) through (a)(4) of this section. CH4 and
N2O emissions must be calculated as the sum of emissions
from combustion of fuels and combustion of biomass in spent liquor
solids.
    (1) Calculate CO2 emissions from fuel combustion using
direct measurement of fuels consumed and default emissions factors
according to the Tier 1 methodology for stationary combustion sources
in Sec.  98.33(a)(1). Tiers 2 or 3 from Sec.  98.33(a)(2) or (3) may be
used to calculate CO2 emissions if the respective monitoring
and QA/QC requirements described in Sec.  98.34 are met.
    (2) Calculate CH4 and N2O emissions from fuel
combustion using direct measurement of fuels consumed, default or site-
specific HHV, and default emissions factors and convert to metric tons
of CO2 equivalent according to the methodology for
stationary combustion sources in Sec.  98.33(c).
* * * * *
    (4) Calculate biogenic CO2 emissions from combustion of
biomass (other than spent liquor solids) with other fuels according to
the applicable methodology for stationary combustion sources in Sec.
98.33(e).
    (b) For each chemical recovery combustion unit located at a sulfite
or stand-alone semichemical facility, you must determine
CO2, CH4, and N2O emissions using the
procedures in paragraphs (b)(1) through (5) of this section:
    (1) Calculate CO2 emissions from fuel combustion using
direct measurement of fuels consumed and default emissions factors
according to the Tier 1 Calculation Methodology for stationary
combustion sources in Sec.  98.33(a)(1). Tiers 2 or 3 from Sec.
98.33(a)(2) or (3) may be used to calculate CO2 emissions if
the respective monitoring and QA/QC requirements described in Sec.
98.34 are met.
    (2) Calculate CH4 and N2O emissions from fuel
combustion using direct measurement of fuels consumed, default or site-
specific HHV, and default emissions factors and convert to metric tons
of CO2 equivalent according to the methodology for
stationary combustion sources in Sec.  98.33(c).
* * * * *
    (5) Calculate biogenic CO2 emissions from combustion of
biomass (other than spent liquor solids) with other fuels according to
the applicable methodology for stationary combustion sources in Sec.
98.33(e).
    (c) For each pulp mill lime kiln located at a kraft or soda
facility, you must determine CO2, CH4, and
N2O emissions using the procedures in paragraphs (c)(1)
through (c)(4) of this section:
    (1) Calculate CO2 emissions from fuel combustion using
direct measurement of fuels consumed and default HHV and default
emissions factors, according to the Tier 1 Calculation Methodology for
stationary combustion sources in Sec.  98.33(a)(1). Tiers 2 or 3 from
Sec.  98.33(a)(2) or (3) may be used to calculate CO2
emissions if the respective monitoring and QA/QC requirements described
in Sec.  98.34 are met.
    (2) Calculate CH4 and N2O emissions from fuel
combustion using direct measurement of fuels consumed, default or site-
specific HHV, and default emissions factors and convert to metric tons
of CO2 equivalent according to the methodology for
stationary combustion sources in Sec.  98.33(c); use the default HHV
listed in Table C-1 of subpart C and the default CH4 and
N2O emissions factors listed in Table AA-2 of this subpart.
* * * * *
    (4) Calculate biogenic CO2 emissions from combustion of
biomass with other fuels according to the applicable methodology for
stationary combustion sources in Sec.  98.33(e).
* * * * *
0
31. Amend Sec.  98.276 by revising paragraph (a) to read as follows:

Sec.  98.276  Data reporting requirements.

* * * * *
    (a) Annual emissions of CO2, biogenic CO2,
CH4, and N2O (metric tons per year).
* * * * *
0
32. Amend Sec.  98.277 by revising paragraph (d) to read as follows:

Sec.  98.277  Records that must be retained.

* * * * *
    (d) Annual quantity of spent liquor solids combusted in each
chemical recovery furnace and chemical recovery combustion unit, and
the basis for determining the annual quantity of the spent liquor
solids combusted (whether based on T650 om-05 Solids Content of Black
Liquor, TAPPI (incorporated by reference, see Sec.  98.7) or an online
measurement system). If an online measurement system is used, you must
retain records of the calculations used to determine the annual
quantity of spent liquor solids combusted from the continuous
measurements.
* * * * *

Subpart HH--Municipal Solid Waste Landfills

0
33. Amend Sec.  98.343 by:
0
a. Revising paragraph (c) introductory text;
0
b. Revising Equation HH-6 in paragraph (c)(3)(i);
0
c. Adding parameters ``M,'' ``0.0026,'' ``dm,'' and
``Sm'' to Equation HH-6 in paragraph (c)(3)(i);
0
d. Revising parameters ``Rn'' and ``fDest,n'' to
Equation HH-6 in paragraph (c)(3)(i);
0
e. Revising Equations HH-7 and HH-8 in paragraph (c)(3)(ii);
0
f. Removing parameter ``fRec,n'' to Equations HH-7 and HH-8
in paragraph (c)(3)(ii);
0
g. Adding parameters ``C,'' ``X,'' ``Rx,c,''
``fRec,c,'' ``M,'' ``0.0026,'' ``dm,'' and
``Sm'' to Equation HH-7 in paragraph (c)(3)(ii);
0
h. Revising parameter ``CE'' to Equation HH-7 in paragraph (c)(3)(ii);
0
i. Adding parameters ``C,'' ``X,'' ``Rx,c,'' and
``fRec,c'' to Equation HH-8 in paragraph (c)(3)(ii);
0
j. Revising parameters ``N'' and ``fDest,n'' to Equation HH-
8 in paragraph (c)(3)(ii); and
0
k. Adding paragraph (c)(4).
    The revisions read as follows:

Sec.  98.343  Calculating GHG emissions.

* * * * *
    (c) For all landfills, calculate CH4 generation
(adjusted for oxidation in cover materials) and actual CH4
emissions (taking into account any CH4 recovery, and
oxidation in cover

materials) according to the applicable methods in paragraphs (c)(1)
through (4) of this section.
* * * * *
    (3) * * *
    (i) * * *
    [GRAPHIC] [TIFF OMITTED] TP22MY23.006

* * * * *
Rn = Quantity of recovered CH4 from Equation
HH-4 of this section for the nth measurement location (metric tons
CH4).
* * * * *
M = Number of individual surface measurements that exceed 500 parts
per million (ppm) above background in the reporting year. If surface
monitoring is not performed or no measurement exceeded 500 ppm above
background in the reporting year, assume M = 0.
0.0000284 = Correlation factor (metric tons methane per ppm surface
concentration per day).
dm = Leak duration (days), estimated as the number of
days since the last monitoring event at the specified location from
company records. Alternatively, you may use the following defaults
for d: 10 days for 10-day monitoring events; 30 days for monthly
monitoring, 91 days for quarterly monitoring, and 365 days for
annual monitoring.
Sm = Surface measurement methane concentration for the
mth measurement that exceeds 500 parts per million above background
(parts per million by volume).
* * * * *
fDest,n = Fraction of hours the destruction device
associated with the nth measurement location was operating during
active gas flow calculated as the annual operating hours for the
destruction device divided by the annual hours flow was sent to the
destruction device as measured at the nth measurement location. The
annual operating hours for the destruction device should include
only those periods when flow was sent to the destruction device and
the destruction device was operating at its intended temperature or
other parameter indicative of effective operation. For flares, times
when there is no pilot flame present must be excluded from the
annual operating hours for the destruction device. If the gas is
transported off-site for destruction, use fDest,n= 1. If
the volumetric flow and CH4 concentration of the
recovered gas is measured at a single location providing landfill
gas to multiple destruction devices (including some gas destroyed
on-site and some gas sent off-site for destruction), calculate
fDest,n as the arithmetic average of the fDest
values determined for each destruction device associated with that
measurement location.

    (ii) * * *
    [GRAPHIC] [TIFF OMITTED] TP22MY23.007

    [GRAPHIC] [TIFF OMITTED] TP22MY23.008

* * * * *
C = Number of landfill gas collection systems operated at the
landfill.
X = Number of landfill gas measurement locations associated with
landfill gas collection system ``c''.
N = Number of landfill gas measurement locations (associated with a
destruction device or gas sent off-site). If a single monitoring
location is used to monitor volumetric flow and CH4
concentration of the recovered gas sent to one or multiple
destruction devices, then N = 1. Note that N = [Sigma]Cc=1
[[Sigma]Xx=1[1]].
Rx,c = Quantity of recovered CH4 from Equation
HH-4 of this section for the xth measurement location for landfill
gas collection system ``c'' (metric tons CH4).
* * * * *
CE = Collection efficiency estimated at landfill, taking into
account system coverage, operation, measurement practices, and cover
system materials from Table HH-3 of this subpart. If area by soil
cover type information is not available, use applicable default
value for CE4 in Table HH-3 of this subpart for all areas under
active influence of the collection system.
* * * * *
fRec,c = Fraction of hours the landfill gas collection
system ``c'' was operating normally (annual operating hours/8760
hours per year or annual operating hours/8784 hours per year for a
leap year). Do not include periods of shut down or poor operation,
such as times when pressure, temperature, or other parameters
indicative of operation are outside of normal variances, in the
annual operating hours.
* * * * *
M = Number of individual surface measurements that exceed 500 parts
per million (ppm) above background in the reporting year. If surface
monitoring is not performed or no measurement exceeded 500 ppm above
background in the reporting year, assume M = 0.
0.0000284 = Correlation factor (metric tons methane per ppm surface
concentration per day)
dm = Leak duration (days), estimated as the number of
days since the last monitoring event at the specified location from
company records. Alternatively, you may use the following defaults
for d: 10 days for 10-day monitoring events; 30 days for monthly
monitoring, 91 days for quarterly monitoring, and 365 days for
annual monitoring.
Sm = Surface measurement methane concentration for the
mth measurement that exceeds 500 parts per million above background
(parts per million by volume).
* * * * *
fDest,n = Fraction of hours the destruction device
associated with the nth measurement location was operating during
active gas flow calculated as the annual operating hours for the
destruction device divided by the annual hours flow was sent to the
destruction

device as measured at the nth measurement location. The annual
operating hours for the destruction device should include only those
periods when flow was sent to the destruction device and the
destruction device was operating at its intended temperature or
other parameter indicative of effective operation. For flares, times
when there is no pilot flame present must be excluded from the
annual operating hours for the destruction device. If the gas is
transported off-site for destruction, use fDest,n= 1. If
the volumetric flow and CH4 concentration of the
recovered gas is measured at a single location providing landfill
gas to multiple destruction devices (including some gas destroyed
on-site and some gas sent off-site for destruction), calculate
fDest,n as the arithmetic average of the fDest
values determined for each destruction device associated with that
measurement location.

    (4) For landfills with landfill gas collection systems, you must
comply with the applicable requirements in paragraphs (c)(4)(i) through
(iii) of this section when calculating the emissions in paragraph
(c)(3) of this section.
    (i) For landfills with landfill gas collection systems required to
conduct surface methane concentration measurements according to 40 CFR
part 60, subparts Cc, Cf, WWW or XXX or according to 40 CFR part 62,
subpart GGG or OOO, you must use the method for conducting surface
methane concentration measurements in Sec.  98.344(g) of this subpart
as applicable to your landfill, you must account for each exceedance
including exceedances when re-monitoring, and you must use the landfill
gas collection efficiencies in Table HH-3 of this subpart applicable to
``landfills for which surface methane concentration measurements are
conducted.''
    (ii) For landfills with landfill gas collection systems that are
not required to conduct surface methane concentration measurements
according to 40 CFR part 60, subparts Cc, Cf, WWW or XXX or according
to 40 CFR part 62, subpart GGG or OOO but elect to conduct surface
methane concentration measurements in lieu of meeting the requirements
in paragraph (c)(4)(iii) of this section for landfills with landfill
gas collection systems that do not conduct surface methane
concentration measurements, you must use the method for conducting
surface methane concentration measurements described in Sec.
98.344(g)(7) of this subpart, you must account for each exceedance
including re-monitoring exceedances (if re-monitoring is conducted),
and you must use the landfill gas collection efficiencies in Table HH-3
of this subpart applicable to ``landfills for which surface methane
concentration measurements are conducted.''
    (iii) For landfills with landfill gas collection systems that are
not required to conduct surface methane concentration measurements
according to 40 CFR part 60, subparts Cc, Cf, WWW or XXX or according
to 40 CFR part 62, subpart GGG or OOO and elect not to conduct surface
methane concentration measurements, you must use the landfill gas
collection efficiencies in Table HH-3 of this subpart applicable to
``landfills for which no surface methane concentration measurements are
conducted.''
0
34. Amend Sec.  98.344 by adding paragraph (g) to read as follows:

Sec.  98.344  Monitoring and QA/QC requirements.

* * * * *
    (g) The owner or operator shall conduct surface methane
concentration measurements according to the requirements in paragraphs
(g)(1) through (7) of this section, as applicable.
    (1) For landfills with landfill gas collection systems that are
required to conduct surface methane concentration measurements
according to 40 CFR part 60, subpart Cc, you must monitor surface
concentrations of methane according to the procedures in Sec.
60.755(c) and the instrument specifications in Sec.  60.755(d) of this
chapter.
    (2) For landfills with landfill gas collection systems that are
required to conduct surface methane concentration measurements
according to 40 CFR part 60, subpart Cf, you must monitor surface
concentrations of methane according to the procedures in Sec.
60.36f(c) and the instrument specifications in Sec.  60.36f(d) of this
chapter.
    (3) For landfills with landfill gas collection systems that are
required to conduct surface methane concentration measurements
according to 40 CFR part 60, subpart WWW, you must monitor surface
concentrations of methane according to the procedures in Sec.
60.755(c) and the instrument specifications in Sec.  60.755(d) of this
chapter.
    (4) For landfills with landfill gas collection systems that are
required to conduct surface methane concentration measurements
according to 40 CFR part 60, subpart XXX, you must monitor surface
concentrations of methane according to the procedures in Sec.
60.765(c) and the instrument specifications in Sec.  60.765(d) of this
chapter.
    (5) For landfills with landfill gas collection systems that are
required to conduct surface methane concentration measurements
according to 40 CFR part 62, subpart GGG, you must monitor surface
concentrations of methane according to the procedures in Sec.
60.755(c) and the instrument specifications in Sec.  60.755(d) of this
chapter.
    (6) For landfills with landfill gas collection systems that are
required to conduct surface methane concentration measurements
according to 40 CFR part 62, subpart OOO, you must monitor surface
concentrations of methane according to the procedures in Sec.
62.16720(c) and the instrument specifications in Sec.  60.16720(d) of
this chapter.
    (7) For landfills with landfill gas collection systems that are not
required to conduct surface methane concentration measurements
according to 40 CFR part 60, subparts Cc, Cf, WWW or XXX or according
to 40 CFR part 62, subpart GGG or OOO but elect to conduct surface
methane concentration measurements, you must monitor surface
concentrations of methane according to the procedures in Sec.
60.765(c) and the instrument specifications in Sec.  60.765(d) of this
chapter.
0
35. Amend Sec.  98.346 by:
0
a. Redesignating paragraph (i) as paragraph (j).
0
b. Revising newly redesignated paragraphs (j)(5) through (7)
0
c. Redesignating paragraph (h) as paragraph (i).
0
d. Adding new paragraph (h) to read as follows:

Sec.  98.346  Data reporting requirements.

* * * * *
    (h) An indication of the applicability of 40 CFR part 60 or part 62
requirements to the landfill (40 CFR part 60, subpart WWW, 40 CFR part
60, subpart XXX, approved state plan implementing 40 CFR part 60,
subparts Cc or Cf, Federal plan as implemented at 40 CFR part 62,
subparts GGG or OOO, or not subject to 40 CFR part 60 or part 62
municipal solid waste landfill rules) and, if the landfill is subject
to a 40 CFR part 60 or part 62 municipal solid waste landfill rule, an
indication of whether the landfill exceeds the applicable nonmethane
organic carbon emission rates requiring landfill gas collection.
* * * * *
    (j) * * *
    (5) The number of gas collection systems at the landfill facility.
    (6) For each gas collection system at the facility report:

    (i) A unique name or ID number for the gas collection system.
    (ii) A description of the gas collection system (manufacturer,
capacity, and number of wells).
    (iii) The annual hours the gas collection system was operating
normally. Do not include periods of shut down or poor operation, such
as times when pressure, temperature, or other parameters indicative of
operation are outside of normal variances, in the annual operating
hours.
    (iv) The number of measurement locations associated with the gas
collection system.
    (v) For each measurement location associated with the gas
collection system, report:
    (A) A unique name or ID number for the measurement location.

    [sum3]Cc=1[lsqb3][sum3]Xx=1[1][rsqb3].

    (B) Annual quantity of recovered CH4 (metric tons
CH4) calculated using Equation HH-4 of this subpart.
    (C) An indication of whether destruction occurs at the landfill
facility, off-site, or both for the measurement location.
    (D) If destruction occurs at the landfill facility for the
measurement location (in full or in part), also report the number of
destruction devices associated with the measurement location that are
located at the landfill facility and the information in paragraphs
(j)(6)(v)(D)(1) through (6) of this section for each destruction device
located at the landfill facility.
    (1) A unique name or ID number for the destruction device.
    (2) The type of destruction device (flare, a landfill gas to energy
project (i.e., engine or turbine), off-site, or other (specify)).
    (3) The destruction efficiency (decimal).
    (4) The total annual hours where active gas flow was sent to the
destruction device.
    (5) The annual operating hours where active gas flow was sent to
the destruction device and the destruction device was operating at its
intended temperature or other parameter indicative of effective
operation. For flares, times when there is no pilot flame present must
be excluded from the annual operating hours for the destruction device.
    (6) The estimated fraction of the recovered CH4 reported
for the measurement location directed to the destruction device based
on best available data or engineering judgement (decimal, must total to
1 for each measurement location).
    (7) The following information about the landfill.
    (i) The surface area (square meters) and estimated waste depth
(meters) for each area specified in Table HH-3 to this subpart.
    (ii) The estimated gas collection system efficiency for the
landfill.
    (iii) An indication of whether passive vents and/or passive flares
(vents or flares that are not considered part of the gas collection
system as defined in Sec.  98.6) are present at the landfill.
    (iv) An indication of whether surface methane concentration
measurements were made at the landfill during the reporting year, the
frequency of routine measurements (annual, semiannual, quarterly,
bimonthly, monthly, or varied during the reporting year), and the total
number of surface methane concentration measurements that exceeded 500
parts per million above background during the reporting year.
    (v) For each surface methane concentration measurement that
exceeded 500 parts per million above background during the reporting
year report:
    (A) A unique name or ID number for the surface measurement.
    (B) The date of the measurement.
    (C) The measured methane concentration (in parts per million by
volume).
    (D) The leak duration (days).
* * * * *
0
36. Revise table HH-1 to subpart HH of part 98 to read as follows:

              Table HH-1 to Subpart HH of Part 98--Emissions Factors, Oxidation Factors and Methods
----------------------------------------------------------------------------------------------------------------
                 Factor                        Default value                           Units
----------------------------------------------------------------------------------------------------------------
                                       DOC and k values--Bulk waste option
----------------------------------------------------------------------------------------------------------------
DOC (bulk waste).......................  0.17....................  Weight fraction, wet basis.
k (precipitation plus recirculated       0.055...................  yr-\1\.
 leachate \a\ <20 inches/year).
k (precipitation plus recirculated       0.111...................  yr-\1\.
 leachate \a\ 20-40 inches/year).
k (precipitation plus recirculated       0.142...................  yr-\1\.
 leachate \a\ >40 inches/year).
----------------------------------------------------------------------------------------------------------------
                                   DOC and k values--Modified bulk MSW option
----------------------------------------------------------------------------------------------------------------
DOC (bulk MSW, excluding inerts and C&D  0.27....................  Weight fraction, wet basis.
 waste).
DOC (inerts, e.g., glass, plastics,      0.00....................  Weight fraction, wet basis.
 metal, concrete).
DOC (C&D waste)........................  0.08....................  Weight fraction, wet basis.
k (bulk MSW, excluding inerts and C&D    0.055 to 0.142 \b\......  yr-\1\.
 waste).
k (inerts, e.g., glass, plastics,        0.00....................  yr-\1\.
 metal, concrete).
k (C&D waste)..........................  0.02 to 0.04 \b\........  yr-\1\.
----------------------------------------------------------------------------------------------------------------
                                   DOC and k values--Waste composition option
----------------------------------------------------------------------------------------------------------------
DOC (food waste).......................  0.15....................  Weight fraction, wet basis.
DOC (garden)...........................  0.2.....................  Weight fraction, wet basis.
DOC (paper)............................  0.4.....................  Weight fraction, wet basis.
DOC (wood and straw)...................  0.43....................  Weight fraction, wet basis.
DOC (textiles).........................  0.24....................  Weight fraction, wet basis.
DOC (diapers)..........................  0.24....................  Weight fraction, wet basis.
DOC (sewage sludge)....................  0.05....................  Weight fraction, wet basis.
DOC (inerts, e.g., glass, plastics,      0.00....................  Weight fraction, wet basis.
 metal, cement).
DOC (Uncharacterized MSW)..............  0.32....................  Weight fraction, wet basis.
k (food waste).........................  0.06 to 0.185 \c\.......  yr-\1\.
k (garden).............................  0.05 to 0.10 \c\........  yr-\1\.
k (paper)..............................  0.04 to 0.06 \c\........  yr-\1\.
k (wood and straw).....................  0.02 to 0.03 \c\........  yr-\1\.

k (textiles)...........................  0.04 to 0.06 \c\........  yr-\1\.
k (diapers)............................  0.05 to 0.10 \c\........  yr-\1\.
k (sewage sludge)......................  0.06 to 0.185 \c\.......  yr-\1\.
k (inerts, e.g., glass, plastics,        0.00....................  yr-\1\.
 metal, concrete).
k (uncharacterized MSW)................  0.055 to 0.142 \b\......  yr-\1\.
----------------------------------------------------------------------------------------------------------------
                                       Other parameters--All MSW landfills
----------------------------------------------------------------------------------------------------------------
MCF....................................  1.......................
DOCF...................................  0.5.....................
F......................................  0.5.....................
OX.....................................  See Table HH-4 of this
                                          subpart.
DE.....................................  0.99....................
----------------------------------------------------------------------------------------------------------------
\a\ Recirculated leachate (in inches/year) is the total volume of leachate recirculated from company records or
  engineering estimates divided by the area of the portion of the landfill containing waste with appropriate
  unit conversions. Alternatively, landfills that use leachate recirculation can elect to use the k value of
  0.142 rather than calculating the recirculated leachate rate.
\b\ Use the lesser value when precipitation plus recirculated leachate is less than 20 inches/year. Use the
  greater value when precipitation plus recirculated leachate is greater than 40 inches/year. Use the average of
  the range of values when precipitation plus recirculated leachate is 20 to 40 inches/year (inclusive).
  Alternatively, landfills that use leachate recirculation can elect to use the greater value rather than
  calculating the recirculated leachate rate.
\c\ Use the lesser value when the potential evapotranspiration rate exceeds the mean annual precipitation rate
  plus recirculated leachate. Use the greater value when the potential evapotranspiration rate does not exceed
  the mean annual precipitation rate plus recirculated leachate. Alternatively, landfills that use leachate
  recirculation can elect to use the greater value rather than assessing the potential evapotranspiration rate
  or recirculated leachate rate.

0
37. Amend table HH-3 to subpart HH of part 98 to read as follows:

                    Table HH-3 to Subpart HH of Part 98--Landfill Gas Collection Efficiencies
----------------------------------------------------------------------------------------------------------------
                                                              Landfill gas collection efficiency
                                             -------------------------------------------------------------------
                                                                                Landfills for     Landfills for
                                                                                which surface   which no surface
                 Description                                                       methane           methane
                                                          Term ID               concentration     concentration
                                                                              measurements \1\  measurements \1\
                                                                                are conducted     are conducted
                                                                                (%)               (%)
----------------------------------------------------------------------------------------------------------------
A1: Area with no waste in-place.............  Not applicable; do not use this area in the calculation.
                                             -------------------------------------------------------------------
A2: Area without active gas collection,       CE2...........................                 0                 0
 regardless of cover type.
A3: Area with daily soil cover and active     CE3...........................                60                50
 gas collection.
A4: Area with an intermediate soil cover, or  CE4...........................                75                65
 a final soil cover not meeting the criteria
 for A5 below, and active gas collection.
A5: Area with a final soil cover of 3 feet    CE5...........................                95                85
 or thicker of clay or final cover (as
 approved by the relevant agency) and/or
 geomembrane cover system and active gas
 collection.
                                             -------------------------------------------------------------------
Area weighted average collection efficiency   CEave1 = (A2*CE2 + A3*CE3 + A4*CE4 + A5*CE5)/(A2 + A3 + A4 + A5).
 for landfills.
----------------------------------------------------------------------------------------------------------------
\1\ Surface methane concentration measurements include only those conducted as required under 40 CFR part 60,
  subparts WWW or XXX, or approved state plans to implement the emission guidelines in 40 CFR part 60, subparts
  Cc or Cf, or Federal plan at 40 CFR part 62 subparts GGG or OOO, or, for those electing to conduct surface
  concentration measurements, those conducted according to the method provided in Sec.   98.344(g) of this
  subpart.

0
38. Revise footnote ``b'' to table HH-4 to subpart HH of part 98 to
read as follows:

     Table HH-4 to Subpart HH of Part 98--Landfill Methane Oxidation
                                Fractions
------------------------------------------------------------------------
                                                      Use this landfill
              Under these conditions:                 methane oxidation
                                                          fraction:
------------------------------------------------------------------------

                              * * * * * * *
------------------------------------------------------------------------
 * * * * * * *
\b\ Methane flux rate (in grams per square meter per day; g/m\2\/d) is
  the mass flow rate of methane per unit area at the bottom of the
  surface soil prior to any oxidation and is calculated as follows:

    For Equation HH-5 of this subpart, or for Equation TT-6 of subpart
TT of this part,

MF = K x GCH4/SArea

    For Equation HH-6 of this subpart,
    [GRAPHIC] [TIFF OMITTED] TP22MY23.009

    For Equation HH-7 of this subpart,
    [GRAPHIC] [TIFF OMITTED] TP22MY23.010

    For Equation HH-8 of this subpart,
    [GRAPHIC] [TIFF OMITTED] TP22MY23.011

Where:

MF = Methane flux rate from the landfill in the reporting year
(grams per square meter per day, g/m\2\/d).
K = unit conversion factor = 10\6\/365 (g/metric ton per days/year)
or 10\6\/366 for a leap year.
SArea = The surface area of the landfill containing waste at the
beginning of the reporting year (square meters, m\2\).
GCH4 = Modeled methane generation rate in reporting year
from Equation HH-1 of this subpart or Equation TT-1 of subpart TT of
this part, as applicable, except for application with Equation HH-6
of this subpart (metric tons CH4). For application with
Equation HH-6 of this subpart, the greater of the modeled methane
generation rate in reporting year from Equation HH-1 of this subpart
or Equation TT-1 of this part, as applicable, and the quantity of
recovered CH4 from Equation HH-4 of this subpart (metric
tons CH4).
CE = Collection efficiency estimated at landfill, taking into
account system coverage, operation, measurement practices, and cover
system materials from Table HH-3 of this subpart. If area by soil
cover type information is not available, use applicable default
value for CE4 in Table HH-3 of this subpart for all areas under
active influence of the collection system.
C = Number of landfill gas collection systems operated at the
landfill.
X = Number of landfill gas measurement locations associated with
landfill gas collection system ``c''.
N = Number of landfill gas measurement locations (associated with a
destruction device or gas sent off-site). If a single monitoring
location is used to monitor volumetric flow and CH4
concentration of the recovered gas sent to one or multiple
destruction devices, then N = 1. Note that N = [Sigma]c=1C
[[Sigma]x=1X[1]].
Rx,c = Quantity of recovered CH4 from Equation
HH-4 of this subpart for the xth measurement location for landfill
gas collection system ``c'' (metric tons CH4).
Rn = Quantity of recovered CH4 from Equation
HH-4 of this subpart for the nth measurement location (metric tons
CH4).
fRec,c = Fraction of hours the landfill gas collection
system ``c'' was operating normally (annual operating hours/8760
hours per year or annual operating hours/8784 hours per year for a
leap year). Do not include periods of shutdown or poor operation,
such as times when pressure, temperature, or other parameters
indicative of operation are outside of normal variances, in the
annual operating hours.

Subpart OO--Suppliers of Industrial Greenhouse Gases

0
39. Amend Sec.  98.416 by:
0
a. Revising paragraph (c) introductory text;
0
b. Adding paragraph (c)(11);
0
c. Revising paragraph (d) introductory text; and
0
d. Adding paragraph (k).
    The revisions and additions read as follows:

Sec.  98.416  Data reporting requirements.

* * * * *
    (c) Each bulk importer of fluorinated GHGs, fluorinated HTFs, or
nitrous oxide shall submit an annual report that summarizes its imports
at the corporate level, except importers may exclude shipments
including less than twenty-five kilograms of fluorinated GHGs,
fluorinated HTFs, or nitrous oxide; transshipments if the importer also
excludes transshipments from reporting of exports under paragraph (d)
of this section; and heels that meet the conditions set forth at Sec.
98.417(e) if the importer also excludes heels from any reporting of
exports under paragraph (d) of this section. The report shall contain
the following information for each import:
* * * * *
    (11) For all GHGs that are not regulated substances under 40 CFR
part 84 (Phasedown of Hydrofluorocarbons), a copy of the corresponding
U.S. Customs entry form for each reported import.
    (d) Each bulk exporter of fluorinated GHGs, fluorinated HTFs, or
nitrous oxide shall submit an annual report that summarizes its exports
at the corporate level, except exporters may exclude shipments
including less than twenty-five kilograms of fluorinated GHGs,
fluorinated HTFs, or nitrous oxide; transshipments if the exporter also
excludes transshipments from reporting of imports under paragraph (c)
of this section; and heels if the exporter also

excludes heels from any reporting of imports under paragraph (c) of
this section. The report shall contain the following information for
each export:
* * * * *
    (k) For nitrous oxide, saturated perfluorocarbons, sulfur
hexafluoride, and fluorinated heat transfer fluids as defined at Sec.
98.6, report the end use(s) for which each GHG or fluorinated HTF is
transferred and the aggregated annual quantity of that GHG or
fluorinated HTF in metric tons that is transferred to that end use
application, if known.

Subpart PP--Suppliers of Carbon Dioxide

0
40. Amend Sec.  98.426 by:
0
a. Redesignating paragraphs (f)(12) and (13) as paragraphs (f)(13) and
(14), respectively;
0
b. Adding new paragraph (f)(12); and
0
c. Revising paragraph (h).
    The revisions and additions read as follows:

Sec.  98.426  Data reporting requirements.

* * * * *
    (f) * * *
    (12) Geologic sequestration of carbon dioxide with enhanced oil
recovery that is covered by subpart VV of this part.
* * * * *
    (h) If you capture a CO2 stream from a facility that is
subject to this part and transfer CO2 to any facilities that
are subject to subpart RR or subpart VV of this part, you must:
    (1) Report the facility identification number associated with the
annual GHG report for the facility that is the source of the captured
CO2 stream;
    (2) Report each facility identification number associated with the
annual GHG reports for each subpart RR and subpart VV facility to which
CO2 is transferred; and
    (3) Report the annual quantity of CO2 in metric tons
that is transferred to each subpart RR and subpart VV facility.

Subpart QQ--Importers and Exporters of Fluorinated Greenhouse Gases
Contained in Pre-Charged Equipment or Closed-Cell Foams

0
41. Amend Sec.  98.436 by adding paragraphs (a)(7) and (8) and (b)(7)
to read as follows:

Sec.  98.436  Data reporting requirements.

    (a) * * *
    (7) The Harmonized tariff system (HTS) code for each type of pre-
charged equipment or closed-cell foam imported.
    (8) A copy of the corresponding U.S. Customs entry form for each
reported import.
    (b) * * *
    (7) The Schedule B code for each type of pre-charged equipment or
closed-cell foam exported.

Subpart RR--Geologic Sequestration of Carbon Dioxide

    42. Add the definition of ``Offshore'' in Sec.  98.449 to read as
follows:

Sec.  98.449  Definitions.

* * * * *
    Offshore means seaward of the terrestrial borders of the United
States, including waters subject to the ebb and flow of the tide, as
well as adjacent bays, lakes or other normally standing waters, and
extending to the outer boundaries of the jurisdiction and control of
the United States under the Outer Continental Shelf Lands Act.
* * * * *

Subpart UU--Injection of Carbon Dioxide

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43. Amend Sec.  98.470 by:
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a. Revising paragraph (b);
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b. Redesignating paragraph (c) as paragraph (d); and
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c. Adding new paragraph (c).
    The revisions and additions read as follows:

Sec.  98.470  Definition of the source category.

* * * * *
    (b) If you report under subpart RR of this part for a well or group
of wells, you shall not report under this subpart for that well or
group of wells.
    (c) If you report under subpart VV of this part for a well or group
of wells, you shall not report under this subpart for that well or
group of wells. If you previously met the source category definition
for subpart UU for a project where CO2 is injected in
enhanced recovery operations for oil and other hydrocarbons
(CO2-EOR) and then began using the International Standards
Organization (ISO) standard designated as CSA/ANSI ISO 27916:2019
(incorporated by reference, see Sec.  98.7) such that you met the
definition of the source category for subpart VV during a reporting
year, you must report under subpart UU for the portion of the year
before you began using CSA/ANSI ISO 27916:2019 and report under subpart
VV for the portion of the year after you began using CSA/ANSI ISO
27916:2019.
    (d) A facility that is subject to this part only because it is
subject to subpart UU of this part is not required to report emissions
under subpart C of this part or any other subpart listed in Sec.
98.2(a)(1) or (2).
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44. Add subpart VV to read as follows:
Subpart VV--Geologic Sequestration of Carbon Dioxide with Enhanced Oil
Recovery Using ISO 27916
Sec.
98.480 Definition of the source category.
98.481 Reporting threshold.
98.482 GHGs to report.
98.483 Calculating CO2 geologic sequestration.
98.484 Monitoring and QA/QC requirements.
98.485 Procedures for estimating missing data.
98.486 Data reporting requirements.
98.487 Records that must be retained.
98.488 EOR Operations Management Plan.
98.489 Definitions.

Sec.  98.480  Definition of the source category.

    (a) This source category pertains to carbon dioxide
(CO2) that is injected in enhanced recovery operations for
oil and other hydrocarbons (CO2-EOR) in which all of the
following apply:
    (1) You are using the International Standards Organization (ISO)
standard designated as CSA/ANSI ISO 27916:2019, ``Carbon Dioxide
Capture, Transportation and Geological Storage--Carbon Dioxide Storage
Using Enhanced Oil Recovery (CO2-EOR)'' (CSA/ANSI ISO
27916:2019) (incorporated by reference, see Sec.  98.7) as a method of
quantifying geologic sequestration of CO2 in association
with EOR operations.