Statutes, codes, and regulations
Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-441 - Reporting of emissions of greenhouse gases
Section 173-441-040 - Greenhouse gases

Wash. Admin. Code § 173-441-040

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Current through Register Vol. 24-20, October 15, 2024
Section 173-441-040 - Greenhouse gases
(1)Greenhouse gases. Table A-1 of this section lists the GHGs regulated under this chapter and their global warming potentials.
(2)CO2e conversion. Use Equation A-1 of WAC 173-441-030(1)(b)(iii) and the global warming potentials (GWP) listed in Table A-1 of this section to convert emissions into CO2e.

Table A-1:

Global Warming Potentials (100-Year Time Horizon)

Name

CAS No.

Chemical Formula

GWP (100 yr.)1,2

2012-2013

[GREATER THAN EQUAL TO] 20143,4

Carbon dioxide

124-38-9

CO2

1

1

Methane

74-82-8

CH4

21

25

Nitrous oxide

10024-97-2

N2O

310

298

Fully Fluorinated GHGs

Sulfur hexafluoride

2551-62-4

SF6

23,900

22,800

Trifluoromethyl sulphur pentafluoride

373-80-8

SF5CF3

17,700

17,700

Nitrogen trifluoride

7783-54-2

NF3

17,200

17,200

PFC-14 (Perfluoromethane)

75-73-0

CF4

6,500

7,390

PFC-116 (Perfluoroethane)

76-16-4

C2F6

9,200

12,200

PFC-218 (Perfluoropropane)

76-19-7

C3F8

7,000

8,830

Perfluorocyclopropane

931-91-9

C-C3F6

17,340

17,340

PFC-3-1-10 (Perfluorobutane)

355-25-9

C4F10

7,000

8,860

PFC-318 (Perfluorocyclobutane)

115-25-3

C-C4F8

8,700

10,300

PFC-4-1-12 (Perfluoropentane)

678-26-2

C5F12

7,500

9,160

PFC-5-1-14 (Perfluorohexane, FC-72)

355-42-0

C6F14

7,400

9,300

PFC-6-1-12 (Hexadecafluoroheptane)

335-57-9

C7F16; CF3(CF2)5CF3

7,820

7,820

PFC-7-1-18 (Octadecafluorooctane)

307-34-6

C8F18; CF3(CF2)6CF3

7,620

7,620

PFC-9-1-18

306-94-5

C10F18

7,500

7,500

PFPMIE (HT-70)

NA

CF3OCF(CF3)CF2OCF2OCF3

10,300

10,300

Perfluorodecalin (cis)

60433-11-6

Z-C10F18

7,236

7,236

Perfluorodecalin (trans)

60433-12-7

E-C10F18

6,288

6,288

Saturated Hydrofluorocarbons (HFCs) with Two or Fewer Carbon-Hydrogen Bonds

HFC-23

75-46-7

CHF3

11,700

14,800

HFC-32

75-10-5

CH2F2

650

675

HFC-125

354-33-6

C2HF5

2,800

3,500

HFC-134

359-35-3

C2H2F4

1,000

1,100

HFC-134a

811-97-2

CH2FCF3

1,300

1,430

HFC-227ca (1,1,1,2,2,3,3-Heptafluoropropane)

2252-84-8

CF3CF2CHF2

2,640

2,640

HFC-227ea

431-89-0

C3HF7

2,900

3,220

HFC-236cb

677-56-5

CH2FCF2CF3

1,340

1,340

HFC-236ea

431-63-0

CHF2CHFCF3

1,370

1,370

HFC-236fa

690-39-1

C3H2F6

6,300

9,810

HFC-329p (1,1,1,2,2,3,3,4,4-Nonafluorobutane)

375-17-7

CHF2CF2CF2CF3

2,360

2,360

HFC-43-10mee

138495-42-8

CF3CFHCFHCF2CF3

1,300

1,640

Saturated Hydrofluorocarbons (HFCs) with Three or More Carbon-Hydrogen Bonds

HFC-41

593-53-3

CH3F

150

92

HFC-143

430-66-0

C2H3F3

300

353

HFC-143a

420-46-2

C2H3F3

3,800

4,470

HFC-152

624-72-6

CH2FCH2F

53

53

HFC-152a

75-37-6

CH3CHF2

140

124

HFC-161

353-36-6

CH3CH2F

12

12

HFC-245ca

679-86-7

C3H3F5

560

693

HFC-245cb (1,1,1,2,2-Pentafluoropropane)

1814-88-6

CF3CF2CH3

4,620

4,620

HFC-245ea (1,1,2,3,3-Pentafluoropropane)

24270-66-4

CHF2CHFCHF2

235

235

HFC-245eb (1,1,1,2,3-Pentafluoropropane)

431-31-2

CH2FCHFCF3

290

290

HFC-245fa

460-73-1

CHF2CH2CF3

1,030

1,030

HFC-263fb (1,1,1-Trifluoropropane)

421-07-8

CH3CH2CF3

76

76

HFC-272ca (2,2-Difluoropropane)

420-45-1

CH3CF2CH3

144

144

HFC-365mfc

406-58-6

CH3CF2CH2CF3

794

794

Saturated Hydrofluoroethers (HFEs) and Hydrochlorofluoroethers (HCFEs) with One Carbon-Hydrogen Bond

HFE-125

3822-68-2

CHF2OCF3

14,900

14,900

HFE-227ea

2356-62-9

CF3CHFOCF3

1,540

1,540

HFE-329mcc2

134769-21-4

CF3CF2OCF2CHF2

919

919

HFE-329me3 (1,1,1,2,3,3-Hexafluoro-3-(trifluoromethoxy)propane)

428454-68-6

CF3CFHCF2OCF3

NA

4,550*

1,1,1,2,2,3,3-Heptafluoro-3-(1,2,2,2-tetrafluoroethoxy)-propane

3330-15-2

CF3CF2CF2OCHFCF3

NA

6,490*

Saturated HFEs and HCFEs with Two Carbon-Hydrogen Bonds

HFE-134 (HG-00)

1691-17-4

CHF2OCHF2

6,320

6,320

HFE-236ca (1-(Difluoromethoxy)-1,1,2,2-tetrafluoroethane)

32778-11-3

CHF2OCF2CHF2

NA

4,240*

HFE-236ca12 (HG-10)

78522-47-1

CHF2OCF2OCHF2

2,800

2,800

HFE-236ea2 (Desflurane)

57041-67-5

CHF2OCHFCF3

989

989

HFE-236fa

20193-67-3

CF3CH2OCF3

487

487

HFE-338mcf2

156053-88-2

CF3CF2OCH2CF3

552

552

HFE-338mmz1

26103-08-2

CHF2OCH(CF3)2

380

380

HFE-338pcc13 (HG-01)

188690-78-0

CHF2OCF2CF2OCHF2

1,500

1,500

HFE-43-10pccc (H-Galden 1040x, HG-11)

E1730133

CHF2OCF2OC2F4OCHF2

1,870

1,870

HCFE-235ca2 (Enflurane) (2-Chloro-1-(difluoromethoxy)-1,1,2-trifluoroethane)

13838-16-9

CHF2OCF2CHFCl

NA

583*

HCFE-235da2 (Isoflurane)

26675-46-7

CHF2OCHClCF3

350

350

HG-02 (1-(Difluoromethoxy)-2-(2-(difluoromethoxy)-1,1,2,2-tetrafluoroethoxy)-1,1,2,2-tetrafluoroethane)

205367-61-9

HF2C-(OCF2CF2)2-OCF2H

NA

3,825*

HG-03 (1,1,3,3,4,4,6,6,7,7,9,9,10,10,12, 12-Hexadecafluoro-2,5,8,11-tetraoxadodecane)

173350-37-3

HF2C-(OCF2CF2)3-OCF2H

NA

3,670*

HG-20 ((Difluoromethoxy) ((difluoromethoxy) difluoromethoxy) difluoromethane)

249932-25-0

HF2C-(OCF2)2-OCF2H

NA

5,300*

HG-21 (1,1,3,3,5,5,7,7,8,8,10,10-Dodecafluoro-2,4,6,9-tetraoxadecane)

249932-26-1

HF2C-OCF2CF2OCF2OCF2O-CF2H

NA

3,890*

HG-30 (1,1,3,3,5,5,7,7,9,9-Decafluoro-2,4,6,8-tetraoxanonane)

188690-77-9

HF2C-(OCF2)3-OCF2H

NA

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

NA

3,630*

1,1,2-Trifluoro-2-(trifluoromethoxy)-ethane

84011-06-3

CHF2CHFOCF3

NA

1,240*

Trifluoro (fluoromethoxy) methane

2261-01-0

CH2FOCF3

NA

751*

Saturated HFEs and HCFEs with Three or More Carbon-Hydrogen Bonds

HFE-143a

421-14-7

CH3OCF3

756

756

HFE-245cb2

22410-44-2

CH3OCF2CF3

708

708

HFE-245fa1

84011-15-4

CHF2CH2OCF3

286

286

HFE-245fa2

1885-48-9

CHF2OCH2CF3

659

659

HFE-254cb2

425-88-7

CH3OCF2CHF2

359

359

HFE-263fb2

460-43-5

CF3CH2OCH3

11

11

HFE-263m1; R-E-143a (1,1,2,2-Tetrafluoro-1-(trifluoromethoxy)ethane)

690-22-2

CF3OCH2CH3

NA

29*

HFE-347mcc3 (HFE-7000)

375-03-1

CH3OCF2CF2CF3

575

575

HFE-347mcf2

171182-95-9

CF3CF2OCH2CHF2

374

374

HFE-347mmy1

22052-84-2

CH3OCF(CF3)2

343

343

HFE-347mmz1; Sevoflurane (2-(Difluoromethoxy)-1,1,1,3,3,3-hexafluoropropane)

28523-86-6

(CF3)2CHOCHF2

NA

216*

HFE-347pcf2

406-78-0

CHF2CF2OCH2CF3

580

580

HFE-356mec3

382-34-3

CH3OCF2CHFCF3

101

101

HFE-356mff2 (bis(2,2,2-trifluoroethyl) ether)

333-36-8

CF3CH2OCH2CF3

NA

17*

HFE-356mmz1

13171-18-1

(CF3)2CHOCH3

27

27

HFE-356pcc3

160620-20-2

CH3OCF2CF2CHF2

110

110

HFE-356pcf2

50807-77-7

CHF2CH2OCF2CHF2

265

265

HFE-356pcf3

35042-99-0

CHF2OCH2CF2CHF2

502

502

HFE-365mcf2 (1-Ethoxy-1,1,2,2,2-pentafluoroethane)

22052-81-9

CF3CF2OCH2CH3

NA

58*

HFE-365mcf3

378-16-5

CF3CF2CH2OCH3

11

11

HFE-374pc2

512-51-6

CH3CH2OCF2CHF2

557

557

HFE-449sl (HFE-7100) Chemical blend

163702-07-6 163702-08-7

C4F9OCH3 (CF3)2CFCF2OCH3

297

297

HFE-569sf2 (HFE-7200) Chemical blend

163702-05-4 163702-06-5

C4F9OC2H5 (CF3)2CFCF2OC2H5

59

59

HG'-01 (1,1,2,2-Tetrafluoro-1,2-dimethoxyethane)

73287-23-7

CH3OCF2CF2OCH3

NA

222*

HG'-02 (1,1,2,2-Tetrafluoro-1-methoxy-2-(1,1,2,2-tetrafluoro-2-methoxyethoxy)ethane)

485399-46-0

CH3O(CF2CF2O)2CH3

NA

236*

HG'-03 (3,3,4,4,6,6,7,7,9,9,10,10-Dodecafluoro-2,5,8,11-tetraoxadodecane)

485399-48-2

CH3O(CF2CF2O)3CH3

NA

221*

Difluoro(methoxy)methane

359-15-9

CH3OCHF2

NA

144*

2-Chloro-1,1,2-trifluoro-1-methoxyethane

425-87-6

CH3OCF2CHFCl

NA

122*

1-Ethoxy-1,1,2,2,3,3,3-heptafluoropropane

22052-86-4

CF3CF2CF2OCH2CH3

NA

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

NA

56*

1-Ethoxy-1,1,2,3,3,3-hexafluoropropane

380-34-7

CF3CHFCF2OCH2CH3

NA

23*

Fluoro(methoxy)methane

460-22-0

CH3OCH2F

NA

13*

1,1,2,2-Tetrafluoro-3-methoxy-propane; Methyl 2,2,3,3-tetrafluoropropyl ether

60598-17-6

CHF2CF2CH2OCH3

NA

0.5*

1,1,2,2-Tetrafluoro-1-(fluoromethoxy) ethane

37031-31-5

CH2FOCF2CF2H

NA

871*

Difluoro (fluoromethoxy) methane

461-63-2

CH2FOCHF2

NA

617*

Fluoro (fluoromethoxy) methane

462-51-1

CH2FOCH2F

NA

130*

Fluorinated Formates

Trifluoromethyl formate

85358-65-2

HCOOCF3

NA

588*

Perfluoroethyl formate

313064-40-3

HCOOCF2CF3

NA

580*

1,2,2,2-Tetrafluoroethyl formate

481631-19-0

HCOOCHFCF3

NA

470*

Perfluorobutyl formate

197218-56-7

HCOOCF2CF2CF2CF3

NA

392*

Perfluoropropyl formate

271257-42-2

HCOOCF2CF2CF3

NA

376*

1,1,1,3,3,3-Hexafluoropropan-2-yl formate

856766-70-6

HCOOCH(CF3)2

NA

333*

2,2,2-Trifluoroethyl formate

32042-38-9

HCOOCH2CF3

NA

33*

3,3,3-Trifluoropropyl formate

1344118-09-7

HCOOCH2CH2CF3

NA

17*

Fluorinated Acetates

Methyl 2,2,2-trifluoroacetate

431-47-0

CF3COOCH3

NA

52*

1,1-Difluoroethyl 2,2,2-trifluoroacetate

1344118-13-3

CF3COOCF2CH3

NA

31*

Difluoromethyl 2,2,2-trifluoroacetate

2024-86-4

CF3COOCHF2

NA

27*

2,2,2-Trifluoroethyl 2,2,2-trifluoroacetate

407-38-5

CF3COOCH2CF3

NA

7*

Methyl 2,2-difluoroacetate

433-53-4

HCF2COOCH3

NA

3*

Perfluoroethyl acetate

343269-97-6

CH3COOCF2CF3

NA

2.1*

Trifluoromethyl acetate

74123-20-9

CH3COOCF3

NA

2.0*

Perfluoropropyl acetate

1344118-10-0

CH3COOCF2CF2CF3

NA

1.8*

Perfluorobutyl acetate

209597-28-4

CH3COOCF2CF2CF2CF3

NA

1.6*

Ethyl 2,2,2-trifluoroacetate

383-63-1

CF3COOCH2CH3

NA

1.3*

Carbonofluoridates

Methyl carbonofluoridate

1538-06-3

FCOOCH3

NA

95*

1,1-Difluoroethyl carbonofluoridate

1344118-11-1

FCOOCF2CH3

NA

27*

Fluorinated Alcohols other than Fluorotelomer Alcohols

Bis(trifluoromethyl)-methanol

920-66-1

(CF3)2CHOH

195

195

(Octafluorotetramethy-lene) hydroxymethyl group

NA

X-(CF2)4CH(OH)-X

73

73

2,2,3,3,3-pentafluoropropanol

422-05-9

CF3CF2CH2OH

42

42

2,2,3,3,4,4,4-Heptafluorobutan-1-ol

375-01-9

C3F7CH2OH

NA

25*

2,2,2-Trifluoroethanol

75-89-8

CF3CH2OH

NA

20*

2,2,3,4,4,4-Hexafluoro-1-butanol

382-31-0

CF3CHFCF2CH2OH

NA

17*

2,2,3,3-Tetrafluoro-1-propanol

76-37-9

CHF2CF2CH2OH

NA

13*

2,2-Difluoroethanol

359-13-7

CHF2CH2OH

NA

3*

2-Fluoroethanol

371-62-0

CH2FCH2OH

NA

1.1*

4,4,4-Trifluorobutan-1-ol

461-18-7

CF3(CH2)2CH2OH

NA

0.05*

Unsaturated Perfluorocarbons (PFCs)

PFC-1114; TFE (tetrafluoroethylene (TFE); Perfluoroethene)

116-14-3

CF2=CF2; C2F4

0.04

0.004

PFC-1216; Dyneon HFP (hexafluoropropylene (HFP); Perfluoropropene)

116-15-4

C3F6; CF3CF=CF2

0.05

0.05

PFC C-1418 (Perfluorocyclopentene; Octafluorocyclopentene)

559-40-0

c-C5F8

1.97

1.97

Perfluorobut-2-ene

360-89-4

CF3CF=CFCF3

1.82

1.82

Perfluorobut-1-ene

357-26-6

CF3CF2CF=CF2

0.10

0.10

Perfluorobuta-1,3-diene

685-63-2

CF2=CFCF=CF2

0

0.003

Unsaturated Hydrofluorocarbons (HFCs) and Hydrochlorofluorocarbons (HCFCs)

HFC-1132a; VF2 (vinylidiene fluoride)

75-38-7

C2H2F2, CF2=CH2

0.04

0.04

HFC-1141; VF (vinyl fluoride)

75-02-5

C2H3F, CH2=CHF

0.02

0.02

(E)-HFC-1225ye ((E)-1,2,3,3,3-Pentafluoroprop-1-ene)

5595-10-8

CF3CF=CHF(E)

0.06

0.06

(Z)-HFC-1225ye ((Z)-1,2,3,3,3-Pentafluoroprop-1-ene)

5528-43-8

CF3CF=CHF(Z)

0.22

0.22

Solstice 1233zd(E) (trans-1-chloro-3,3,3-trifluoroprop-1-ene)

102687-65-0

C3H2ClF3; CHCl=CHCF3

NA

1.34*

HFC-1234yf; HFO-1234yf (2,3,3,3-Tetrafluoroprop-1-ene)

754-12-1

C3H2F4; CF3CF=CH2

0.31

0.31

HFC-1234ze(E) ((E)-1,3,3,3-Tetrafluoroprop-1-ene)

1645-83-6

C3H2F4; trans-CF3CH=CHF

0.97

0.97

HFC-1234ze(Z) ((Z)-1,3,3,3-Tetrafluoroprop-1-ene)

29118-25-0

C3H2F4; cis-CF3CH=CHF; CF3CH=CHF

0.29

0.29

HFC-1243zf; TFP (trifluoro propene (TFP); 3,3,3-Trifluoroprop-1-ene)

677-21-4

C3H3F3,CF3CH=CH2

0.12

0.12

(Z)-HFC-1336 ((Z)-1,1,1,4,4,4-Hexafluorobut-2-ene)

692-49-9

CF3CH=CHCF3(Z)

1.58

1.58

HFC-1345zfc (3,3,4,4,4-Pentafluorobut-1-ene)

374-27-6

C2F5CH=CH2

0.09

0.09

Capstone 42-U (perfluorobutyl ethene (42-U); 3,3,4,4,5,5,6,6,6-Nonafluorohex-1-ene)

19430-93-4

C6H3F9,CF3(CF2)3CH=CH2

0.16

0.16

Capstone 62-U (perfluorohexyl ethene (62-U); 3,3,4,4,5,5,6,6,7,7,8,8,8-Tridecafluorooct-1-ene)

25291-17-2

C8H3F13,CF3(CF2)5CH=CH2

0.11

0.11

Capstone 82-U (perfluorooctyl ethene (82-U); 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10, 10-Heptadecafluorodec-1-ene)

21652-58-4

C10H3F17,CF3(CF2)7CH=CH2

0.09

0.09

Unsaturated Halogenated Ethers

PMVE; HFE-216 (perfluoromethyl vinyl ether (PMVE))

1187-93-5

CF3OCF=CF2

NA

0.17*

Fluoroxene ((2,2,2-Trifluoroethoxy) ethene)

406-90-6

CF3CH2OCH=CH2

NA

0.05*

Fluorinated Aldehydes

3,3,3-Trifluoro-propanal

460-40-2

CF3CH2CHO

NA

0.01*

Fluorinated Ketones

Novec 1230 (FK-5-1-12 Perfluoroketone; FK-5-1-12myy2; perfluoro (2-methyl-3-pentanone))

756-13-8

CF3CF2C(O)CF (CF3)2

NA

0.1*

Fluorotelomer Alcohols

3,3,4,4,5,5,6,6,7,7,7-Undecafluoroheptan-1-ol

185689-57-0

CF3(CF2)4CH2CH2OH

NA

0.43*

3,3,3-Trifluoropropan-1-ol

2240-88-2

CF3CH2CH2OH

NA

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

NA

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

NA

0.19*

Fluorinated GHGs with Carbon-Iodine Bond(s)

Trifluoroiodomethane

2314-97-8

CF3I

NA

0.4*

Other Fluorinated Compounds

Dibromodifluoromethane (Halon 1202)

75-61-6

CBr2F2

NA

231*

2-Bromo-2-chloro-1,1,1-trifluoroethane (Halon-2311/ Halothane)

151-67-7

CHBrClCF3

NA

41*

Default GWPs for which Chemical-Specific GWPs are not Listed Above

Saturated PFCs

10,000

10,000

Saturated HFCs with 2 or fewer carbon-hydrogen bonds

3,700

3,700

Saturated HFCs with 3 or more carbon-hydrogen bonds

930

930

Unsaturated PFCs and unsaturated HFCs

1

1

NA = not available.

1= Determining applicability for emissions years 2013 and 2014. For emissions year 2013 (reported in 2014) and emissions year 2014 (reported in 2015), facilities may use the GWPs in either column when calculating GHG emissions for comparison to the reporting threshold under WAC 173-441-030.

2= Calculating annual GHG emissions for emissions year 2013.For emissions year 2013 (reported in 2014), facilities may use the GWPs in either column when calculating GHG emissions for the annual GHG report.

3= Determining applicability for emissions year 2015+.For emissions year 2015 (reported in 2016) and subsequent years, facilities must use the GWPs in this column when calculating GHG emissions for comparison to the reporting threshold under WAC 173-441-030.

4= Calculating annual GHG emissions for emissions year 2014+.For emissions year 2014 (reported in 2015) and subsequent years, facilities must use the GWPs in this column when calculating GHG emissions for the annual GHG report.

* = Requirements to include emissions of this compound when calculating GHG emissions for comparison to the reporting threshold under WAC 173-441-030 and when calculating GHG emissions for the annual GHG report become effective beginning with emissions year 2016 (reported in 2017).

Wash. Admin. Code § 173-441-040

Amended by WSR 15-04-051, Filed 1/29/2015, effective 3/1/2015
Amended by WSR 22-05-050, Filed 2/9/2022, effective 3/12/2022

Reviser's note: The brackets and enclosed material in the text of the above section occurred in the copy filed by the agency.

Statutory Authority: 2010 c 146, and chapters 70.235 and 70.94 RCW. 10-24-108 (Order 10-08), § 173-441-040, filed 12/1/10, effective 1/1/11.