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Electronic Code of Federal Regulations

e-CFR data is current as of November 14, 2019

Title 40Chapter ISubchapter CPart 98Subpart A → Appendix


Title 40: Protection of Environment
PART 98—MANDATORY GREENHOUSE GAS REPORTING
Subpart A—General Provision


Table A-1 to Subpart A of Part 98—Global Warming Potentials

[100-Year Time Horizon]

NameCAS No.Chemical formulaGlobal
warming
potential
(100 yr.)
Chemical-Specific GWPs
Carbon dioxide124-38-9CO21
Methane74-82-8CH4a25
Nitrous oxide10024-97-2N2Oa298
Fully Fluorinated GHGs
Sulfur hexafluoride2551-62-4SF6a22,800
Trifluoromethyl sulphur pentafluoride373-80-8SF5CF317,700
Nitrogen trifluoride7783-54-2NF317,200
PFC-14 (Perfluoromethane)75-73-0CF4a7,390
PFC-116 (Perfluoroethane)76-16-4C2F6a12,200
PFC-218 (Perfluoropropane)76-19-7C3F8a8,830
Perfluorocyclopropane931-91-9C-C3F617,340
PFC-3-1-10 (Perfluorobutane)355-25-9C4F10a8,860
PFC-318 (Perfluorocyclobutane)115-25-3C-C4F8a10,300
PFC-4-1-12 (Perfluoropentane)678-26-2C5F12a9,160
PFC-5-1-14 (Perfluorohexane, FC-72)355-42-0C6F14a9,300
PFC-6-1-12335-57-9C7F16; CF3(CF2)5CF3b7,820
PFC-7-1-18307-34-6C8F18; CF3(CF2)6CF3b7,620
PFC-9-1-18306-94-5C10F187,500
PFPMIE (HT-70)NACF3OCF(CF3)CF2OCF2OCF310,300
Perfluorodecalin (cis)60433-11-6Z-C10F18b7,236
Perfluorodecalin (trans)60433-12-7E-C10F18b6,288
Saturated Hydrofluorocarbons (HFCs) With Two or Fewer Carbon-Hydrogen Bonds
HFC-2375-46-7CHF3a14,800
HFC-3275-10-5CH2F2a675
HFC-125354-33-6C2HF5a3,500
HFC-134359-35-3C2H2F4a1,100
HFC-134a811-97-2CH2FCF3a1,430
HFC-227ca2252-84-8CF3CF2CHF2b2640
HFC-227ea431-89-0C3HF7a3,220
HFC-236cb677-56-5CH2FCF2CF31,340
HFC-236ea431-63-0CHF2CHFCF31,370
HFC-236fa690-39-1C3H2F6a9,810
HFC-329p375-17-7CHF2CF2CF2CF3b2360
HFC-43-10mee138495-42-8CF3CFHCFHCF2CF3a1,640
Saturated Hydrofluorocarbons (HFCs) With Three or More Carbon-Hydrogen Bonds
HFC-41593-53-3CH3Fa92
HFC-143430-66-0C2H3F3a353
HFC-143a420-46-2C2H3F3a4,470
HFC-152624-72-6CH2FCH2F53
HFC-152a75-37-6CH3CHF2a124
HFC-161353-36-6CH3CH2F12
HFC-245ca679-86-7C3H3F5a693
HFC-245cb1814-88-6CF3CF2CH3b4620
HFC-245ea24270-66-4CHF2CHFCHF2b235
HFC-245eb431-31-2CH2FCHFCF3b290
HFC-245fa460-73-1CHF2CH2CF31,030
HFC-263fb421-07-8CH3CH2CF3b76
HFC-272ca420-45-1CH3CF2CH3b144
HFC-365mfc406-58-6CH3CF2CH2CF3794
Saturated Hydrofluoroethers (HFEs) and Hydrochlorofluoroethers (HCFEs) With One Carbon-Hydrogen Bond
HFE-1253822-68-2CHF2OCF314,900
HFE-227ea2356-62-9CF3CHFOCF31,540
HFE-329mcc2134769-21-4CF3CF2OCF2CHF2919
HFE-329me3428454-68-6CF3CFHCF2OCF3b4,550
1,1,1,2,2,3,3-Heptafluoro-3-(1,2,2,2-tetrafluoroethoxy)-propane3330-15-2CF3CF2CF2OCHFCF3b6,490
Saturated HFEs and HCFEs With Two Carbon-Hydrogen Bonds
HFE-134 (HG-00)1691-17-4CHF2OCHF26,320
HFE-236ca32778-11-3CHF2OCF2CHF2b4,240
HFE-236ca12 (HG-10)78522-47-1CHF2OCF2OCHF22,800
HFE-236ea2 (Desflurane)57041-67-5CHF2OCHFCF3989
HFE-236fa20193-67-3CF3CH2OCF3487
HFE-338mcf2156053-88-2CF3CF2OCH2CF3552
HFE-338mmz126103-08-2CHF2OCH(CF3)2380
HFE-338pcc13 (HG-01)188690-78-0CHF2OCF2CF2OCHF21,500
HFE-43-10pccc (H-Galden 1040x, HG-11)E1730133CHF2OCF2OC2F4OCHF21,870
HCFE-235ca2 (Enflurane)13838-16-9CHF2OCF2CHFClb583
HCFE-235da2 (Isoflurane)26675-46-7CHF2OCHClCF3350
HG-02205367-61-9HF2C-(OCF2CF2)2-OCF2Hb3,825
HG-03173350-37-3HF2C-(OCF2CF2)3-OCF2Hb3,670
HG-20249932-25-0HF2C-(OCF2)2-OCF2Hb5,300
HG-21249932-26-1HF2C-OCF2CF2OCF2OCF2O-CF2Hb3,890
HG-30188690-77-9HF2C-(OCF2)3-OCF2Hb7,330
1,1,3,3,4,4,6,6,7,7,9,9,10,10,12,12,13,13,15,15-eicosafluoro-2,5,8,11,14-Pentaoxapentadecane173350-38-4HCF2O(CF2CF2O)4CF2Hb3,630
1,1,2-Trifluoro-2-(trifluoromethoxy)-ethane84011-06-3CHF2CHFOCF3b1,240
Trifluoro(fluoromethoxy)methane2261-01-0CH2FOCF3b751
Saturated HFEs and HCFEs With Three or More Carbon-Hydrogen Bonds
HFE-143a421-14-7CH3OCF3756
HFE-245cb222410-44-2CH3OCF2CF3708
HFE-245fa184011-15-4CHF2CH2OCF3286
HFE-245fa21885-48-9CHF2OCH2CF3659
HFE-254cb2425-88-7CH3OCF2CHF2359
HFE-263fb2460-43-5CF3CH2OCH311
HFE-263m1; R-E-143a690-22-2CF3OCH2CH3b29
HFE-347mcc3 (HFE-7000)375-03-1CH3OCF2CF2CF3575
HFE-347mcf2171182-95-9CF3CF2OCH2CHF2374
HFE-347mmy122052-84-2CH3OCF(CF3)2343
HFE-347mmz1 (Sevoflurane)28523-86-6(CF3)2CHOCH2Fc216
HFE-347pcf2406-78-0CHF2CF2OCH2CF3580
HFE-356mec3382-34-3CH3OCF2CHFCF3101
HFE-356mff2333-36-8CF3CH2OCH2CF3b17
HFE-356mmz113171-18-1(CF3)2CHOCH327
HFE-356pcc3160620-20-2CH3OCF2CF2CHF2110
HFE-356pcf250807-77-7CHF2CH2OCF2CHF2265
HFE-356pcf335042-99-0CHF2OCH2CF2CHF2502
HFE-365mcf222052-81-9CF3CF2OCH2CH3b58
HFE-365mcf3378-16-5CF3CF2CH2OCH311
HFE-374pc2512-51-6CH3CH2OCF2CHF2557
HFE-449s1 (HFE-7100) Chemical blend163702-07-6C4F9OCH3297
   163702-08-7(CF3)2CFCF2OCH3
HFE-569sf2 (HFE-7200) Chemical blend163702-05-4C4F9OC2H559
   163702-06-5(CF3)2CFCF2OC2H5
HG'-0173287-23-7CH3OCF2CF2OCH3b222
HG'-02485399-46-0CH3O(CF2CF2O)2CH3b236
HG'-03485399-48-2CH3O(CF2CF2O)3CH3b221
Difluoro(methoxy)methane359-15-9CH3OCHF2b144
2-Chloro-1,1,2-trifluoro-1-methoxyethane425-87-6CH3OCF2CHFClb122
1-Ethoxy-1,1,2,2,3,3,3-heptafluoropropane22052-86-4CF3CF2CF2OCH2CH3b61
2-Ethoxy-3,3,4,4,5-pentafluorotetrahydro-2,5-bis[1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl]-furan920979-28-8C12H5F19O2b56
1-Ethoxy-1,1,2,3,3,3-hexafluoropropane380-34-7CF3CHFCF2OCH2CH3b23
Fluoro(methoxy)methane460-22-0CH3OCH2Fb13
1,1,2,2-Tetrafluoro-3-methoxy-propane; Methyl 2,2,3,3-tetrafluoropropyl ether60598-17-6CHF2CF2CH2OCH3b0.5
1,1,2,2-Tetrafluoro-1-(fluoromethoxy)ethane37031-31-5CH2FOCF2CF2Hb871
Difluoro(fluoromethoxy)methane461-63-2CH2FOCHF2b617
Fluoro(fluoromethoxy)methane462-51-1CH2FOCH2Fb130
Fluorinated Formates
Trifluoromethyl formate85358-65-2HCOOCF3b588
Perfluoroethyl formate313064-40-3HCOOCF2CF3b580
1,2,2,2-Tetrafluoroethyl formate481631-19-0HCOOCHFCF3b470
Perfluorobutyl formate197218-56-7HCOOCF2CF2CF2CF3b392
Perfluoropropyl formate271257-42-2HCOOCF2CF2CF3b376
1,1,1,3,3,3-Hexafluoropropan-2-yl formate856766-70-6HCOOCH(CF3)2b333
2,2,2-Trifluoroethyl formate32042-38-9HCOOCH2CF3b33
3,3,3-Trifluoropropyl formate1344118-09-7HCOOCH2CH2CF3b17
Fluorinated Acetates
Methyl 2,2,2-trifluoroacetate431-47-0CF3COOCH3b52
1,1-Difluoroethyl 2,2,2-trifluoroacetate1344118-13-3CF3COOCF2CH3b31
Difluoromethyl 2,2,2-trifluoroacetate2024-86-4CF3COOCHF2b27
2,2,2-Trifluoroethyl 2,2,2-trifluoroacetate407-38-5CF3COOCH2CF3b7
Methyl 2,2-difluoroacetate433-53-4HCF2COOCH3b3
Perfluoroethyl acetate343269-97-6CH3COOCF2CF3b2.1
Trifluoromethyl acetate74123-20-9CH3COOCF3b2.0
Perfluoropropyl acetate1344118-10-0CH3COOCF2CF2CF3b1.8
Perfluorobutyl acetate209597-28-4CH3COOCF2CF2CF2CF3b1.6
Ethyl 2,2,2-trifluoroacetate383-63-1CF3COOCH2CH3b1.3
Carbonofluoridates
Methyl carbonofluoridate1538-06-3FCOOCH3b95
1,1-Difluoroethyl carbonofluoridate1344118-11-1FCOOCF2CH3b27
Fluorinated Alcohols Other Than Fluorotelomer Alcohols
Bis(trifluoromethyl)-methanol920-66-1(CF3)2CHOH195
(Octafluorotetramethy-lene) hydroxymethyl groupNAX-(CF2)4CH(OH)-X73
2,2,3,3,3-Pentafluoropropanol422-05-9CF3CF2CH2OH42
2,2,3,3,4,4,4-Heptafluorobutan-1-ol375-01-9C3F7CH2OHb25
2,2,2-Trifluoroethanol75-89-8CF3CH2OHb20
2,2,3,4,4,4-Hexafluoro-1-butanol382-31-0CF3CHFCF2CH2OHb17
2,2,3,3-Tetrafluoro-1-propanol76-37-9CHF2CF2CH2OHb13
2,2-Difluoroethanol359-13-7CHF2CH2OHb3
2-Fluoroethanol371-62-0CH2FCH2OHb1.1
4,4,4-Trifluorobutan-1-ol461-18-7CF3(CH2)2CH2OHb0.05
Unsaturated Perfluorocarbons (PFCs)
PFC-1114; TFE116-14-3CF2 = CF2; C2F4b0.004
PFC-1216; Dyneon HFP116-15-4C3F6; CF3CF = CF2b0.05
PFC C-1418559-40-0c-C5F8b1.97
Perfluorobut-2-ene360-89-4CF3CF = CFCF3b1.82
Perfluorobut-1-ene357-26-6CF3CF2CF = CF2b0.10
Perfluorobuta-1,3-diene685-63-2CF2 = CFCF = CF2b0.003
Unsaturated Hydrofluorocarbons (HFCs) and Hydrochlorofluorocarbons (HCFCs)
HFC-1132a; VF275-38-7C2H2F2 , CF2 = CH2b0.04
HFC-1141; VF75-02-5C2H3F, CH2 = CHFb0.02
(E)-HFC-1225ye5595-10-8CF3CF = CHF(E)b0.06
(Z)-HFC-1225ye5528-43-8CF3CF = CHF(Z)b0.22
Solstice 1233zd(E)102687-65-0C3H2ClF3; CHCl = CHCF3b1.34
HFC-1234yf; HFO-1234yf754-12-1C3H2F4; CF3CF = CH2b0.31
HFC-1234ze(E)1645-83-6C3H2F4; trans-CF3CH = CHFb0.97
HFC-1234ze(Z)29118-25-0C3H2F4; cis-CF3CH = CHF; CF3CH = CHFb0.29
HFC-1243zf; TFP677-21-4C3H3F3, CF3CH = CH2b0.12
(Z)-HFC-1336692-49-9CF3CH = CHCF3(Z)b1.58
HFC-1345zfc374-27-6C2F5CH = CH2b0.09
Capstone 42-U19430-93-4C6H3F9, CF3(CF2)3CH = CH2b0.16
Capstone 62-U25291-17-2C8H3F13, CF3(CF2)5CH = CH2b0.11
Capstone 82-U21652-58-4C10H3F17, CF3(CF2)7CH = CH2b0.09
Unsaturated Halogenated Ethers
PMVE; HFE-2161187-93-5CF3OCF = CF2b0.17
Fluoroxene406-90-6CF3CH2OCH = CH2b0.05
Fluorinated Aldehydes
3,3,3-Trifluoro-propanal460-40-2CF3CH2CHOb0.01
Fluorinated Ketones
Novec 1230 (perfluoro (2-methyl-3-pentanone))756-13-8CF3CF2C(O)CF (CF3)2b0.1
Fluorotelomer Alcohols
3,3,4,4,5,5,6,6,7,7,7-Undecafluoroheptan-1-ol185689-57-0CF3(CF2)4CH2CH2OHb0.43
3,3,3-Trifluoropropan-1-ol2240-88-2CF3CH2CH2OHb0.35
3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-Pentadecafluorononan-1-ol755-02-2CF3(CF2)6CH2CH2OHb0.33
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-Nonadecafluoroundecan-1-ol87017-97-8CF3(CF2)8CH2CH2OHb0.19
Fluorinated GHGs With Carbon-Iodine Bond(s)
Trifluoroiodomethane2314-97-8CF3Ib0.4
Other Fluorinated Compounds
Dibromodifluoromethane (Halon 1202)75-61-6CBR2F2b231
2-Bromo-2-chloro-1,1,1-trifluoroethane (Halon-2311/Halothane)151-67-7CHBrClCF3b41
Fluorinated GHG GroupdGlobal
warming
potential
(100 yr.)
Default GWPs for Compounds for Which Chemical-Specific GWPs Are Not Listed Above
Fully fluorinated GHGs10,000
Saturated hydrofluorocarbons (HFCs) with 2 or fewer carbon-hydrogen bonds3,700
Saturated HFCs with 3 or more carbon-hydrogen bonds930
Saturated hydrofluoroethers (HFEs) and hydrochlorofluoroethers (HCFEs) with 1 carbon-hydrogen bond5,700
Saturated HFEs and HCFEs with 2 carbon-hydrogen bonds2,600
Saturated HFEs and HCFEs with 3 or more carbon-hydrogen bonds270
Fluorinated formates350
Fluorinated acetates, carbonofluoridates, and fluorinated alcohols other than fluorotelomer alcohols30
Unsaturated perfluorocarbons (PFCs), unsaturated HFCs, unsaturated hydrochlorofluorocarbons (HCFCs), unsaturated halogenated ethers, unsaturated halogenated esters, fluorinated aldehydes, and fluorinated ketones1
Fluorotelomer alcohols1
Fluorinated GHGs with carbon-iodine bond(s)1
Other fluorinated GHGs2,000

aThe GWP for this compound was updated in the final rule published on November 29, 2013 [78 FR 71904] and effective on January 1, 2014.

bThis compound was added to Table A-1 in the final rule published on December 11, 2014, and effective on January 1, 2015.

cThe GWP for this compound was updated in the final rule published on December 11, 2014, and effective on January 1, 2015 .

dFor electronics manufacturing (as defined in §98.90), the term “fluorinated GHGs” in the definition of each fluorinated GHG group in §98.6 shall include fluorinated heat transfer fluids (as defined in §98.98), whether or not they are also fluorinated GHGs.

[79 FR 73779, Dec. 11, 2014]

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