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

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

Link to an amendment published at 89 FR 31894, Apr. 25, 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)CF2OCF2OCF3	10,300	Perfluorodecalin (cis)	60433-11-6	Z-C10F18	b 7,236	Perfluorodecalin (trans)	60433-12-7	E-C10F18	b 6,288	Saturated Hydrofluorocarbons (HFCs) With Two or Fewer Carbon-Hydrogen Bonds				HFC-23	75-46-7	CHF3	a 14,800	HFC-32	75-10-5	CH2F2	a 675	HFC-125	354-33-6	C2HF5	a 3,500	HFC-134	359-35-3	C2H2F4	a 1,100	HFC-134a	811-97-2	CH2FCF3	a 1,430	HFC-227ca	2252-84-8	CF3CF2CHF2	b 2640	HFC-227ea	431-89-0	C3HF7	a 3,220	HFC-236cb	677-56-5	CH2FCF2CF3	1,340	HFC-236ea	431-63-0	CHF2CHFCF3	1,370	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-OCF2H	b 3,825	HG-03	173350-37-3	HF2C-(OCF2CF2)3-OCF2H	b 3,670	HG-20	249932-25-0	HF2C-(OCF2)2-OCF2H	b 5,300	HG-21	249932-26-1	HF2C-OCF2CF2OCF2OCF2O-CF2H	b 3,890	HG-30	188690-77-9	HF2C-(OCF2)3-OCF2H	b 7,330	1,1,3,3,4,4,6,6,7,7,9,9,10,10,12,12,13,13,15,15-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 Group d	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.

[79 FR 73779, Dec. 11, 2014]