40 C.F.R. § 98 app Table A-1 to Subpart A of Part 98
Current through October 31, 2024
[100-Year Time Horizon]
| Name | CAS No. | Chemical formula | Global warming potential (100 yr.) |
| Chemical-Specific GWPs | |||
| Carbon dioxide | 124-38-9 | CO2 | 1 |
| Methane | 74-82-8 | CH4 | a 25 |
| Nitrous oxide | 10024-97-2 | N2O | a 298 |
| Fully Fluorinated GHGs | |||
| Sulfur hexafluoride | 2551-62-4 | SF6 | a 22,800 |
| Trifluoromethyl sulphur pentafluoride | 373-80-8 | SF5CF3 | 17,700 |
| Nitrogen trifluoride | 7783-54-2 | NF3 | 17,200 |
| PFC-14 (Perfluoromethane) | 75-73-0 | CF4 | a 7,390 |
| PFC-116 (Perfluoroethane) | 76-16-4 | C2F6 | a 12,200 |
| PFC-218 (Perfluoropropane) | 76-19-7 | C3F8 | a 8,830 |
| Perfluorocyclopropane | 931-91-9 | C-C3F6 | 17,340 |
| PFC-3-1-10 (Perfluorobutane) | 355-25-9 | C4F10 | a 8,860 |
| PFC-318 (Perfluorocyclobutane) | 115-25-3 | C-C4F8 | a 10,300 |
| PFC-4-1-12 (Perfluoropentane) | 678-26-2 | C5F12 | a 9,160 |
| PFC-5-1-14 (Perfluorohexane, FC-72) | 355-42-0 | C6F14 | a 9,300 |
| PFC-6-1-12 | 335-57-9 | C7F16; CF3(CF2)5CF3 | b 7,820 |
| PFC-7-1-18 | 307-34-6 | C8F18; CF3(CF2)6CF3 | b 7,620 |
| PFC-9-1-18 | 306-94-5 | C10F18 | 7,500 |
| PFPMIE (HT-70) | NA | CF3OCF(CF3)CF2OCF2OCF 3 | 10,300 |
| Perfluorodecalin (cis) | 60433-11-6 | Z-C10F18 | b 7,236 |
| Perfluorodecalin (trans) | 60433-12-7 | E-C10F18 | b 6,288 |
| Saturated Hydrofluorocarbons (HFCs) With Two or Fewer Carbon-Hydrogen Bonds | |||
| HFC-23 | 75-46-7 | CHF3 | a 14,800 |
| HFC-32 | 75-10-5 | CH2F2 | a 675 |
| HFC-125 | 354-33-6 | C2HF5 | a 3,500 |
| HFC-134 | 359-35-3 | C2H2F4 | a 1,100 |
| HFC-134a | 811-97-2 | CH2FCF3 | a 1,430 |
| HFC-227ca | 2252-84-8 | CF3CF2CHF2 | b 2640 |
| HFC-227ea | 431-89-0 | C3HF7 | a 3,220 |
| HFC-236cb | 677-56-5 | CH2FCF2CF3 | 1,340 |
| HFC-236ea | 431-63-0 | CHF2CHFCF3 | 1,370 |
| HFC-236fa | 690-39-1 | C3H2F6 | a 9,810 |
| HFC-329p | 375-17-7 | CHF2CF2CF2CF3 | b 2360 |
| HFC-43-10mee | 138495-42-8 | CF3CFHCFHCF2CF3 | a 1,640 |
| Saturated Hydrofluorocarbons (HFCs) With Three or More Carbon-Hydrogen Bonds | |||
| HFC-41 | 593-53-3 | CH3F | a 92 |
| HFC-143 | 430-66-0 | C2H3F3 | a 353 |
| HFC-143a | 420-46-2 | C2H3F3 | a 4,470 |
| HFC-152 | 624-72-6 | CH2FCH2F | 53 |
| HFC-152a | 75-37-6 | CH3CHF2 | a 124 |
| HFC-161 | 353-36-6 | CH3CH2F | 12 |
| HFC-245ca | 679-86-7 | C3H3F5 | a 693 |
| HFC-245cb | 1814-88-6 | CF3CF2CH3 | b 4620 |
| HFC-245ea | 24270-66-4 | CHF2CHFCHF2 | b 235 |
| HFC-245eb | 431-31-2 | CH2FCHFCF3 | b 290 |
| HFC-245fa | 460-73-1 | CHF2CH2CF3 | 1,030 |
| HFC-263fb | 421-07-8 | CH3CH2CF3 | b 76 |
| HFC-272ca | 420-45-1 | CH3CF2CH3 | b 144 |
| HFC-365mfc | 406-58-6 | CH3CF2CH2CF3 | 794 |
| Saturated Hydrofluoroethers (HFEs) and Hydrochlorofluoroethers (HCFEs) With One Carbon-Hydrogen Bond | |||
| HFE-125 | 3822-68-2 | CHF2OCF3 | 14,900 |
| HFE-227ea | 2356-62-9 | CF3CHFOCF3 | 1,540 |
| HFE-329mcc2 | 134769-21-4 | CF3CF2OCF2CHF2 | 919 |
| HFE-329me3 | 428454-68-6 | CF3CFHCF2OCF3 | b 4,550 |
| 1,1,1,2,2,3,3-Heptafluoro-3-(1,2,2,2-tetrafluoroethoxy)-propane | 3330-15-2 | CF3CF2CF2OCHFCF3 | b 6,490 |
| Saturated HFEs and HCFEs With Two Carbon-Hydrogen Bonds | |||
| HFE-134 (HG-00) | 1691-17-4 | CHF2OCHF2 | 6,320 |
| HFE-236ca | 32778-11-3 | CHF2OCF2CHF2 | b 4,240 |
| HFE-236ca12 (HG-10) | 78522-47-1 | CHF2OCF2OCHF2 | 2,800 |
| HFE-236ea2 (Desflurane) | 57041-67-5 | CHF2OCHFCF3 | 989 |
| HFE-236fa | 20193-67-3 | CF3CH2OCF3 | 487 |
| HFE-338mcf2 | 156053-88-2 | CF3CF2OCH2CF3 | 552 |
| HFE-338mmz1 | 26103-08-2 | CHF2OCH(CF3)2 | 380 |
| HFE-338pcc13 (HG-01) | 188690-78-0 | CHF2OCF2CF2OCHF2 | 1,500 |
| HFE-43-10pccc (H-Galden 1040x, HG-11) | E1730133 | CHF2OCF2OC2F4OCHF2 | 1,870 |
| HCFE-235ca2 (Enflurane) | 13838-16-9 | CHF2OCF2CHFCl | b 583 |
| HCFE-235da2 (Isoflurane) | 26675-46-7 | CHF2OCHClCF3 | 350 |
| HG-02 | 205367-61-9 | HF2C-(OCF2CF2)2-OCF 2H | b 3,825 |
| HG-03 | 173350-37-3 | HF2C-(OCF2CF2)3-OCF 2H | b 3,670 |
| HG-20 | 249932-25-0 | HF2C-(OCF2)2-OCF2H | b 5,300 |
| HG-21 | 249932-26-1 | HF2C-OCF2CF2OCF2OCF 2O-CF2H | b 3,890 |
| HG-30 | 188690-77-9 | HF2C-(OCF2)3-OCF2H | b 7,330 |
| 1,1,3,3,4,4,6,6,7,7,9,9,10,10,12,12,13,13,15,15-eicosafluoro-2,5,8,11,14-Pentaoxapentadecane | 173350-38-4 | HCF2O(CF2CF2O)4CF2H | b 3,630 |
| 1,1,2-Trifluoro-2-(trifluoromethoxy)-ethane | 84011-06-3 | CHF2CHFOCF3 | b 1,240 |
| Trifluoro(fluoromethoxy)methane | 2261-01-0 | CH2FOCF3 | b 751 |
| Saturated HFEs and HCFEs With Three or More Carbon-Hydrogen Bonds | |||
| HFE-143a | 421-14-7 | CH3OCF3 | 756 |
| HFE-245cb2 | 22410-44-2 | CH3OCF2CF3 | 708 |
| HFE-245fa1 | 84011-15-4 | CHF2CH2OCF3 | 286 |
| HFE-245fa2 | 1885-48-9 | CHF2OCH2CF3 | 659 |
| HFE-254cb2 | 425-88-7 | CH3OCF2CHF2 | 359 |
| HFE-263fb2 | 460-43-5 | CF3CH2OCH3 | 11 |
| HFE-263m1; R-E-143a | 690-22-2 | CF3OCH2CH3 | b 29 |
| HFE-347mcc3 (HFE-7000) | 375-03-1 | CH3OCF2CF2CF3 | 575 |
| HFE-347mcf2 | 171182-95-9 | CF3CF2OCH2CHF2 | 374 |
| HFE-347mmy1 | 22052-84-2 | CH3OCF(CF3)2 | 343 |
| HFE-347mmz1 (Sevoflurane) | 28523-86-6 | (CF3)2CHOCH2F | c 216 |
| HFE-347pcf2 | 406-78-0 | CHF2CF2OCH2CF3 | 580 |
| HFE-356mec3 | 382-34-3 | CH3OCF2CHFCF3 | 101 |
| HFE-356mff2 | 333-36-8 | CF3CH2OCH2CF3 | b 17 |
| HFE-356mmz1 | 13171-18-1 | (CF3)2CHOCH3 | 27 |
| HFE-356pcc3 | 160620-20-2 | CH3OCF2CF2CHF2 | 110 |
| HFE-356pcf2 | 50807-77-7 | CHF2CH2OCF2CHF2 | 265 |
| HFE-356pcf3 | 35042-99-0 | CHF2OCH2CF2CHF2 | 502 |
| HFE-365mcf2 | 22052-81-9 | CF3CF2OCH2CH3 | b 58 |
| HFE-365mcf3 | 378-16-5 | CF3CF2CH2OCH3 | 11 |
| HFE-374pc2 | 512-51-6 | CH3CH2OCF2CHF2 | 557 |
| HFE-449s1 (HFE-7100) Chemical blend | 163702-07-6 | C4F9OCH3 | 297 |
| 163702-08-7 | (CF3)2CFCF2OCH3 | ||
| HFE-569sf2 (HFE-7200) Chemical blend | 163702-05-4 | C4F9OC2H5 | 59 |
| 163702-06-5 | (CF3)2CFCF2OC2H5 | ||
| HG'-01 | 73287-23-7 | CH3OCF2CF2OCH3 | b 222 |
| HG'-02 | 485399-46-0 | CH3O(CF2CF2O)2CH3 | b 236 |
| HG'-03 | 485399-48-2 | CH3O(CF2CF2O)3CH3 | b 221 |
| Difluoro(methoxy)methane | 359-15-9 | CH3OCHF2 | b 144 |
| 2-Chloro-1,1,2-trifluoro-1-methoxyethane | 425-87-6 | CH3OCF2CHFCl | b 122 |
| 1-Ethoxy-1,1,2,2,3,3,3-heptafluoropropane | 22052-86-4 | CF3CF2CF2OCH2CH3 | b 61 |
| 2-Ethoxy-3,3,4,4,5-pentafluorotetrahydro-2,5-bis[1,2,2,2-tetrafluoro-1-(trifluoromethyl)ethyl]-furan | 920979-28-8 | C12H5F19O2 | b 56 |
| 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 2,2,3,3-tetrafluoropropyl ether | 60598-17-6 | CHF2CF2CH2OCH3 | b 0.5 |
| 1,1,2,2-Tetrafluoro-1-(fluoromethoxy)ethane | 37031-31-5 | CH2FOCF2CF2H | b 871 |
| Difluoro(fluoromethoxy)methane | 461-63-2 | CH2FOCHF2 | b 617 |
| Fluoro(fluoromethoxy)methane | 462-51-1 | CH2FOCH2F | b 130 |
| Fluorinated Formates | |||
| Trifluoromethyl formate | 85358-65-2 | HCOOCF3 | b 588 |
| Perfluoroethyl formate | 313064-40-3 | HCOOCF2CF3 | b 580 |
| 1,2,2,2-Tetrafluoroethyl formate | 481631-19-0 | HCOOCHFCF3 | b 470 |
| Perfluorobutyl formate | 197218-56-7 | HCOOCF2CF2CF2CF3 | b 392 |
| Perfluoropropyl formate | 271257-42-2 | HCOOCF2CF2CF3 | b 376 |
| 1,1,1,3,3,3-Hexafluoropropan-2-yl formate | 856766-70-6 | HCOOCH(CF3)2 | b 333 |
| 2,2,2-Trifluoroethyl formate | 32042-38-9 | HCOOCH2CF3 | b 33 |
| 3,3,3-Trifluoropropyl formate | 1344118-09-7 | HCOOCH2CH2CF3 | b 17 |
| Fluorinated Acetates | |||
| Methyl 2,2,2-trifluoroacetate | 431-47-0 | CF3COOCH3 | b 52 |
| 1,1-Difluoroethyl 2,2,2-trifluoroacetate | 1344118-13-3 | CF3COOCF2CH3 | b 31 |
| Difluoromethyl 2,2,2-trifluoroacetate | 2024-86-4 | CF3COOCHF2 | b 27 |
| 2,2,2-Trifluoroethyl 2,2,2-trifluoroacetate | 407-38-5 | CF3COOCH2CF3 | b 7 |
| Methyl 2,2-difluoroacetate | 433-53-4 | HCF2COOCH3 | b 3 |
| Perfluoroethyl acetate | 343269-97-6 | CH3COOCF2CF3 | b 2.1 |
| Trifluoromethyl acetate | 74123-20-9 | CH3COOCF3 | b 2.0 |
| Perfluoropropyl acetate | 1344118-10-0 | CH3COOCF2CF2CF3 | b 1.8 |
| Perfluorobutyl acetate | 209597-28-4 | CH3COOCF2CF2CF2CF3 | b 1.6 |
| Ethyl 2,2,2-trifluoroacetate | 383-63-1 | CF3COOCH2CH3 | b 1.3 |
| Carbonofluoridates | |||
| Methyl carbonofluoridate | 1538-06-3 | FCOOCH3 | b 95 |
| 1,1-Difluoroethyl carbonofluoridate | 1344118-11-1 | FCOOCF2CH3 | b 27 |
| Fluorinated Alcohols Other Than Fluorotelomer Alcohols | |||
| Bis(trifluoromethyl)-methanol | 920-66-1 | (CF3)2CHOH | 195 |
| (Octafluorotetramethy-lene) hydroxymethyl group | NA | X-(CF2)4CH(OH)-X | 73 |
| 2,2,3,3,3-Pentafluoropropanol | 422-05-9 | CF3CF2CH2OH | 42 |
| 2,2,3,3,4,4,4-Heptafluorobutan-1-ol | 375-01-9 | C3F7CH2OH | b 25 |
| 2,2,2-Trifluoroethanol | 75-89-8 | CF3CH2OH | b 20 |
| 2,2,3,4,4,4-Hexafluoro-1-butanol | 382-31-0 | CF3CHFCF2CH2OH | b 17 |
| 2,2,3,3-Tetrafluoro-1-propanol | 76-37-9 | CHF2CF2CH2OH | b 13 |
| 2,2-Difluoroethanol | 359-13-7 | CHF2CH2OH | b 3 |
| 2-Fluoroethanol | 371-62-0 | CH2FCH2OH | b 1.1 |
| 4,4,4-Trifluorobutan-1-ol | 461-18-7 | CF3(CH2)2CH2OH | b 0.05 |
| Unsaturated Perfluorocarbons (PFCs) | |||
| PFC-1114; TFE | 116-14-3 | CF2 = CF2; C2F4 | b 0.004 |
| PFC-1216; Dyneon HFP | 116-15-4 | C3F6; CF3CF = CF2 | b 0.05 |
| PFC C-1418 | 559-40-0 | c-C5F8 | b 1.97 |
| Perfluorobut-2-ene | 360-89-4 | CF3CF = CFCF3 | b 1.82 |
| Perfluorobut-1-ene | 357-26-6 | CF3CF2CF = CF2 | b 0.10 |
| Perfluorobuta-1,3-diene | 685-63-2 | CF2 = CFCF = CF2 | b 0.003 |
| Unsaturated Hydrofluorocarbons (HFCs) and Hydrochlorofluorocarbons (HCFCs) | |||
| HFC-1132a; VF2 | 75-38-7 | C2H2F2, CF2 = CH2 | b 0.04 |
| HFC-1141; VF | 75-02-5 | C2H3F, CH2 = CHF | b 0.02 |
| (E)-HFC-1225ye | 5595-10-8 | CF3CF = CHF(E) | b 0.06 |
| (Z)-HFC-1225ye | 5528-43-8 | CF3CF = CHF(Z) | b 0.22 |
| Solstice 1233zd(E) | 102687-65-0 | C3H2ClF3; CHCl = CHCF3 | b 1.34 |
| HFC-1234yf; HFO-1234yf | 754-12-1 | C3H2F4; CF3CF = CH2 | b 0.31 |
| HFC-1234ze(E) | 1645-83-6 | C3H2F4; trans-CF3CH = CHF | b 0.97 |
| HFC-1234ze(Z) | 29118-25-0 | 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 |
| HFC-1345zfc | 374-27-6 | C2F5CH = CH2 | b 0.09 |
| Capstone 42-U | 19430-93-4 | C6H3F9, CF3(CF2)3CH = CH2 | b 0.16 |
| Capstone 62-U | 25291-17-2 | C8H3F13, CF3(CF2)5CH = CH2 | b 0.11 |
| Capstone 82-U | 21652-58-4 | C10H3F17, CF3(CF2)7CH = CH2 | b 0.09 |
| Unsaturated Halogenated Ethers | |||
| PMVE; HFE-216 | 1187-93-5 | CF3OCF = CF2 | b 0.17 |
| Fluoroxene | 406-90-6 | CF3CH2OCH = CH2 | b 0.05 |
| Fluorinated Aldehydes | |||
| 3,3,3-Trifluoro-propanal | 460-40-2 | CF3CH2CHO | b 0.01 |
| Fluorinated Ketones | |||
| Novec 1230 (perfluoro (2-methyl-3-pentanone)) | 756-13-8 | CF3CF2C(O)CF (CF3)2 | b 0.1 |
| Fluorotelomer Alcohols | |||
| 3,3,4,4,5,5,6,6,7,7,7-Undecafluoroheptan-1-ol | 185689-57-0 | CF3(CF2)4CH2CH2OH | b 0.43 |
| 3,3,3-Trifluoropropan-1-ol | 2240-88-2 | CF3CH2CH2OH | b 0.35 |
| 3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-Pentadecafluorononan-1-ol | 755-02-2 | CF3(CF2)6CH2CH2OH | b 0.33 |
| 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-Nonadecafluoroundecan-1-ol | 87017-97-8 | CF3(CF2)8CH2CH2OH | b 0.19 |
| Fluorinated GHGs With Carbon-Iodine Bond(s) | |||
| Trifluoroiodomethane | 2314-97-8 | CF3I | b 0.4 |
| Other Fluorinated Compounds | |||
| Dibromodifluoromethane (Halon 1202) | 75-61-6 | CBR2F2 | b 231 |
| 2-Bromo-2-chloro-1,1,1-trifluoroethane (Halon-2311/Halothane) | 151-67-7 | CHBrClCF3 | b 41 |
| Fluorinated GHG Groupd | Global warming potential (100 yr.) |
| Default GWPs for Compounds for Which Chemical-Specific GWPs Are Not Listed Above | |
| Fully fluorinated GHGs | 10,000 |
| Saturated hydrofluorocarbons (HFCs) with 2 or fewer carbon-hydrogen bonds | 3,700 |
| Saturated HFCs with 3 or more carbon-hydrogen bonds | 930 |
| Saturated hydrofluoroethers (HFEs) and hydrochlorofluoroethers (HCFEs) with 1 carbon-hydrogen bond | 5,700 |
| Saturated HFEs and HCFEs with 2 carbon-hydrogen bonds | 2,600 |
| Saturated HFEs and HCFEs with 3 or more carbon-hydrogen bonds | 270 |
| Fluorinated formates | 350 |
| Fluorinated acetates, carbonofluoridates, and fluorinated alcohols other than fluorotelomer alcohols | 30 |
| Unsaturated perfluorocarbons (PFCs), unsaturated HFCs, unsaturated hydrochlorofluorocarbons (HCFCs), unsaturated halogenated ethers, unsaturated halogenated esters, fluorinated aldehydes, and fluorinated ketones | 1 |
| Fluorotelomer alcohols | 1 |
| Fluorinated GHGs with carbon-iodine bond(s) | 1 |
| Other fluorinated GHGs | 2,000 |
a The GWP for this compound was updated in the final rule published on November 29, 2013 [78 FR 71904] and effective on January 1, 2014.
b This compound was added to Table A-1 in the final rule published on December 11, 2014, and effective on January 1, 2015.
c The GWP for this compound was updated in the final rule published on December 11, 2014, and effective on January 1, 2015.
d For electronics manufacturing (as defined in § 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.
40 C.F.R. 98 app Table A-1 to Subpart A of Part 98