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# Table s of Alternatives for End - Uses Considered i n the Notice of Proposed Rule Making , Protection of Stratospheric Ozone: Proposed New Listings of Substitutes; Changes of Listing Status; and Reinterpretation of Unacceptability for Closed Cell Foam Products under the Significant New Alternatives Policy Program; and Revision of Clean Air Act Section 608’s Venting Prohibition fo r Propane 

# March 2016

U.S. Environmental Protection Agency Stratospheric Protection Division Office of Atmospheric Programs Office of Air and Radiation

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# 1 SUBSTITUTES FOR NEWLY - MANUFACTURED HEAVY - DUTY MOTOR VEHICLE AIR CONDITIONING SYSTEMS The references to environmental and health properties of substitu t es acceptable , subject to use conditions , are summarized in the table below. (Substitutes previously listed as unacceptable are not included here.) Table 1 . Environmental and Health Properties of Non - Ozone Depleting Refrigerants in Heavy - Duty Motor Vehicle Air Conditioning Systems 1

Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule , Notice , O r Acceptability Determination for t he ODP , GWP , VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Carbon Dioxide R - 744; CO 2 ; CAS # 124 - 38 - 9 Refer to Initial SNAP Rule, SNAP Rule 14, SNAP Notice 10 , and SNAP Notice 25. Evaporative Cooling N/A Refer to Initial SNAP Rule . HFC - 152a 1,1 - difluoroethane; CAS # 75 - 34 - 3 Refer to SNAP Rule 14 and SNAP Notice 25 . Ikon A Ikon 12; Blend Zeta; Composition is claimed as confidential business information ( CBI ) Refer to SNAP Notice 13. 2

R - 426A RS - 24 (new formulation); HFC - 125/HFC - 134a/HC - 600/HC - 601a (5.1/93/ 1.3/0.6) Refer to SNAP Notice 21 and SNAP Notice 25 . SP34E Composition is claimed as CBI Refer to SNAP Notice 14 and SNAP Notice 25 . 1 HCFC - 22 and several blends containing HCFCs are also listed as acceptable but their use is severely restricted by the phasedown in HCFC production and consumption . 2 Refer to IPCC Fourth Assessment Report for GWP value of components .

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# 2 FOAM BLOWING AGENTS The references to environmental and health properties of acceptable substitutes, and substitutes whose status would change under the final rule for foam blowing agents are summarized in the tables below. The end - uses included in the proposed rule in the foam blowing agent sector are the following: Rigid Polyurethane (PU): Spray, Flexible PU, Integral Skin PU, and Polyolefin. (Substitutes listed as unacceptable in previous rules, e.g., HCFCs, are not included here.) Table 2 . Environmental and Health Properties of Foam Blowing Agents

Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute AB Technology Reaction of formic acid with isocyanate to produce carbon monoxide and water/isocyanate reaction to generate carbon dioxide for the expansion of foam R efer to Initial SNAP Rule .

Acetone 2 - propanone; CAS # 67 - 64 - 1 Refer to SNAP Notice 8 and SNAP Notice 25 . Commercial blends of HFC – 365mfc and HFC – 227ea containing 7% to 13% HFC – 227ea and the remainder HFC – 365mfc HFC - 365mfc is also known as 1,1,1,3,3 - pentafluorobutane, CAS # 405 - 58 - 6; HFC - 227ea is also known as 1,1,1,2,3,3,3 - heptafluoropropane; CAS # 431 - 89 - 0. Commercial blends include 7% HFC - 227ea/93% HFC - 365mfc a nd 13% HFC - 227ea/87% HFC - 365mfc . Also s ee row in this table on HFC - 365mfc for more information . Refer to SNAP Acceptability Determination 28 .

Blends of HFC 365mfc & HFC 245fa, >5% HFC 245fa See other rows in this table for more information on the component blowing agents Refer to SNAP Notice 24 and SNAP Notice 25 .

### 4 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute C3 - C6 Saturated Light Hydro carbons Examples: propane, butane, isobutane, n pentane, cyclopentane, hexane, cyclohexane Refer to SNAP Notice 1, SNAP Notice 12, and SNAP Notice 25 . Carbon Dioxide CO 2 ; CAS # 124 - 38 - 9 Refer to Initial SNAP Rule , SNAP Rule 14 , SNA P Notice 10 and SNAP Notice 25 . Ecomate TM methyl formate Refer to SNAP Notice 18 , SNAP Notice 21 , and SNAP Notice 25 . Electroset Technology A proprietary process that makes organic resins electrically semiconductive Refer to SNAP Notice 1 and SNAP Notice 25 . Exxsol Blowing Agents Blend containing light saturated hydrocarbons with 5 carbons Refer to SNAP Notice 11 and SNAP Notice 25 .

HFO – 1336mzz(Z) Formacel® 1100; (Z) - 1,1,1,4,4,4 - hexafluorobut - 2 - ene; CAS # 692 - 49 - 9 Refer to SNAP Acceptability Determination 29 and SNAP Acceptability Determination 30 .

Formacel® TI HFC Blend; Composition is claimed as CBI Refer to SNAP Notice 24 and SNAP Notice 25 .

### 5 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute

Formic Acid Methanoic acid; First listed as Proprietary Blowing Agent 1, or PBA 1; CAS #64 - 18 - 6 Refer to SNAP Notice 5, SNAP Notice 8, and SNAP Notice 25 . HFC - 134a 1,1,1,2 - tetrafluoroethane; CAS # 811 - 97 - 2 Refer to Initial SNAP Rule , SNAP Notice 10 , and SNAP Notice 25 . HFC - 143a 1,1,1 - trifluoroethane; CAS # 420 - 46 - 2 Refer to Initial SNAP Rule and SNAP Notice 1. 1

HFC - 152a 1,2 - difluoroethane; CAS #75 - 37 - 6 Refer to Initial SNAP Rule, SNAP Notice 10, and SNAP Notice 25 . HFC - 152a/ Saturated Light Hydrocarbon Blends See other rows in this table for more information on the component blowing agents Refer to SNAP Notice 1, SNAP Notice 10, SNAP Notice 12, and SNAP Notice 25.

HFC - 245fa 1,1,1,3,3 - pentafluoroethane; CAS # 460 - 73 - 1 Refer to SNAP Notice 11, SNAP Notice 18, and SNAP Notice 25 . HFC - 365mfc 1,1,1,3,3 - pentafluorobutane; CAS # 405 - 58 - 6 Refer to SNAP Notice 24 and SNAP Notice 25 .

### 6 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute

HFO - 1234ze (E) trans - 1,3,3,3 - tetrafluoroprop - 1 - ene; CAS # - 29118 - 24 - 9 Refer to SNAP Notice 24 and SNAP Notice 25 .

Methyl Formate Formic acid, m ethylester ; m ethyl methanoate; CAS # 107 - 31 - 3 Refer to SNAP Notice 14 and SNAP Notice 25 .

Methylal Dimethoxymethane; CAS # 109 - 87 - 5 Refer to SNAP Acceptability Determination 29 . Methylene Chloride Dichloromethane; CAS # 75 - 09 - 2 Refer to Initial SNAP Rule and SNAP Notice 1. 1

Tran s - 1 - chloro 3,3,3 - trifluoro prop - 1 - ene Solstice TM LBA; Solstice 1233zd(E); CAS # 102687 - 65 - 0 Refer to SNAP Acceptability Determination 27 and SNAP Acceptability Determination 29

Transcend TM Technologies Composition is claimed as CBI Refer to SNAP Notice 20 and SNAP Notice 25.

### 7 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Water H 2 O; CAS # 7732 - 18 - 5 Refer to SNAP Notice 10 and SNAP Notice 25 . 1 Refer to IPCC Fourth Assessment Report for GW P v alue.

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# 3 RETAIL FOOD REFRIGER ATION — FOOD PROCESSING AND DISPENSING EQUIPMENT The references to environmental and health properties of acceptable substitutes, substitutes acceptable , subject to use conditions, and substitutes whose status would change under the final rule for new retail food refrigeration -- food processing and dispensing equipment are summarized in the table below . (Substitutes previously listed as unacceptable are not included here.) Table 3 . Environmental and Health Properties of Refrigerants in Retail Food Refrigeration -- Food Processing and Dispensing Equipment 1

Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Carbon Dioxide R - 744; CO 2 ; CAS # 124 - 38 - 9 Refer to SNAP Rule 14 , Notice 24 , and SNAP Notice 25 . FOR12A Composition is claimed as CBI Refer to SNAP Notice 14. FOR12B Composition is claimed as CBI Refer to SNAP Notice 14.

HFC - 134a HFC - 134a; 1,1,1,2 - tetrafluoroethane; CAS # 811 - 97 - 2 Refer to Initial SNAP Rule , SNAP Notice 10, and SNAP Notice 25.

ICOR AT - 22 HFC - 125/ HC - 290/ HFC - 134a/ HC 600a ; (55/ 1/ 42.5/ 1.5) Refer to SNAP Notice 20 and SNAP Notice 25.

I kon A Ikon 12; Blend Zeta; Composition is claimed as CBI Refer to SNAP Notice 13. 2

### 9 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute I kon B Composition is claimed as CBI Refer to SNAP Notice 13.

KDD6 Composition is claimed as CBI Refer to SNAP Notice 23.

R - 404A SUVA HP62; HFC - 125/HFC 143a/HFC - 134a ; (44/52/ 4) Refer to Initial SNAP Rule , SNAP Notice 17 , and SNAP Notice 25 . 2

R - 407A Klea 60; Klea 407A; HFC - 32/HFC - 125/HFC - 134a (20/40/40); Refer to SNAP Notice 1, SNAP Notice 23, and SNAP Notice 25.

R - 407B Klea 61; HFC - 32/HFC - 125/HFC - 134a; (10/70/20) Refer to SNAP Notice 1 and SNAP Notice 25.

R - 407C Suva 407C; Klea 407C; HFC - 32/HFC - 125/HFC - 134a ; (23/25/52) Refer to SNAP Notice 4, SNAP 17, and SNAP Notice 18. 2

### 10 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute

R - 407F Genetron Performax LT; HFC - 32/HFC - 125/HFC - 134a (30/30/40) Refer to SNAP Acceptability Determination 26.

R - 410A AZ - 20; Suva 9100; Puron; HFC - 32/HFC - 125 ; (50/50) Refer to SNAP Notice 4 and SNAP Notice 17. 2

R - 410B HFC - 32/HFC - 125 ; (45/55) Refer to SNAP Notice 4 and SNAP Notice 25.

R - 417A ISCEON - 59; NU - 22 (new composition) ; HFC - 125/HFC - 134a/HC - 600 ; (46.6/50/3.4) Refer to SNAP Notice 11 and SNAP Notice 25.

R - 417C ICOR; Hot Shot 2; HFC - 125/HFC 134a/HC - 600 (19.5/78.8/1.7) Refer to SNAP Acceptability Determination 26.

R - 421A Choice R - 421A; HFC - 125/HFC - 134a ; (58/ 42) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 422A ISCEON 79; HFC - 125/HFC - 134a/HC - 600a ; ( 85.1/11.5/3.4 ) Refer to SNAP Notice 19. 2

### 11 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute

R - 422B ICOR XAC1; ICOR NU - 22B; HFC - 125/HFC - 134a/HC - 600a ; (55/42/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 422C ICOR XLT1; One Shot; HFC - 125/HFC - 134a/HC - 600a ; (82/15/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 422D ISCEON MO29; HFC - 125/HFC - 134a/HC - 600a ; (65.1/31.5/3.4) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 424A RS - 44 (new formulation ) ; HFC - 125/HFC - 134a/HC - 600a/HC 600/HC - 601a ; (50.5/47/0.9/1/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 426A RS - 24 (new formulation); HFC - 125/HFC - 134a/HC - 600/HC 601a ; (5.1/93/ 1.3/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 427A Forane 427A; HFC - 32/HFC 125/HFC - 143a/HFC - 134a (15/25/10/50) Refer to SNAP Notice 23 and SNAP Notice 25.

R - 437A ISCEON MO49 PlusTM; HFC 125/HFC - 134a/HC - 600/HC - 601 (19.5/78.5/ 1.4/0.6) Refer to SNAP Notice 25.

### 12 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute

R - 438A KDD5; ISCEON MO99; HFC 32/HFC - 125/HFC - 134a/HC 600/HC - 601a; (8.5/45/44.2/1.7/0.6) Refer to SNAP Notice 24 and SNAP Notice 25.

R - 441A HCR - 188C; HC - 170/HC - 290/HC - 600 a /HC 600; (3.1/54.8/ 6/ 36.1) Refer to SNAP Rule 17.

R - 448A Solstice® N - 40; HFC - 32/HFC - 125/ HFO - 1234yf/ HFC - 134a/ HFO 1234ze(E); (26/26/20/ 21/ 7) Refer to SNAP Acceptability Determination 30.

R - 449A Opteon® XP 40; HFC - 32/HFC 125/HFO - 1234yf /HFC - 134a ; (24.3/24.7/25.3 /25.7 ) Refer to SNAP Acceptability Determination 30.

R - 450A Solstice® N – 13; HFC - 134a/HFO - 1234ze(E) ; (42/58 ) Refer to SNA P Acceptability Determination 29 .

R - 507A HFC - 125/HFC - 143a ; (50/ 50) Refer to Initial SNAP Rule , SNAP Notice 5, SNAP Notice 17, and SNAP Acceptability Determination 26.

R - 513A Opteon® XP 10 ; HFC - 134a/HFO 1234yf (44/56) Refer to SNAP Acceptability Determination 30. R - 717 Ammonia; NH 3 ; CAS # 7664 - 41 - 7 Refer to Initial SNAP Rule , SNAP Notice 5, and SNAP Notice 25.

### 13 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute RS - 24 (2002 formulation) Composition is claimed as CBI Refer to SNAP Notice 17 and SNAP Notice 25. RS - 44 (2003 formulation) Composition is claimed as CBI Refer to SNAP Notice 18 and SNAP Notice 25.

SP34E Composition is claimed as CBI Refer to SNAP Notice 14, SNAP Notice 15, and SNAP Notice 25.

THR - 02 Composition is claimed as CBI Refer to SNAP Notice 11. THR - 03 Composition is claimed as CBI Refer to SNAP Notice 11. 1 HCFC - 22 and several blends containing HCFCs are also listed as acceptable but their use is severely restricted by the phasedown in HCFC production and

consumption. 2 Refer to IPCC Fourth Assessment Report for GWP value.

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# 4 RESIDENTIAL AND LIGHT COMMERCIAL AIR CONDITIONING AND HEAT PUMPS The re ferences to environmental and health properties of acceptable substitutes and substitutes acceptable , subject to use conditions, for new or retrofitted residential and light commercial air conditioning and heat pumps are summarized in the table below. (Substitutes previously listed as unacceptable are not included here.) Table 4 . Environmental and Health Properties of Refrigerants in Household and Light Commercial Air Conditioning

Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Ammonia Absorption R - 717 Refer to SNAP Notice 5 and SNAP Notice 25. Desiccant Cooling N/A Refer to Initial SNAP Rule , SNAP Notice 5 and SNAP Notice 25. Evaporative Cooling N/A Refer to SNAP Notice 5 and SNAP Notice 25.

HFC - 134a R - 134a; 1,1,1,2 - tetrafluoroethane; CAS # 811 - 97 - 2 Refer to SNAP Rule 20, SNAP Notice 10, and SNAP Notic e 25.

HFC - 32 R - 32; difluoromethane; CAS # 75 - 10 - 5 Refer to SNAP Rule 19. HFC - 125/HFC 134a/HC - 600a (28.1 / 70 /1 .9 ) NU - 22 old composition Refer to SNAP Notice 2 5 . ICOR AT - 22 HFC - 125/HC - 290/HFC 134a/ HC - 600a; (55/1/42.5/ 1.5) Refer to SNAP Notice 20 and SNAP Notice 25.

### 15 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute KDD6 Composition is claimed as CBI Refer to SNAP Notice 23.

R - 290 Propane; CAS # 74 - 98 - 6 Refer to SNAP Rule 19. R - 404A SUVA HP62; HFC 125/HFC - 143a/HFC 134a; (44/52/ 4) Refer to Initial SNAP Rule and SNAP Notice 17. 1

R - 407A Klea 60; Klea 407A; HFC - 32/HFC - 125/HFC 134a (20/40/40); Refer to SNAP Notice 23.

R - 407C Suva 407C; Klea 407C; HFC - 32/HFC - 125/HFC 134a; (23/25/52) Refer to SNAP Notice 4, SNAP 17, and SNAP Notice 18. 1

R - 407F Genetron Performax LT; HFC - 32/HFC - 125/HFC 134a (30/30/40) Refer to SNAP Acceptability Determination 26.

R - 410A AZ - 20; Suva 9100; Puron; HFC - 32/HFC - 125; (50/50) Refer to SNAP Notice 4 and SNAP Notice 17. 1

R - 410B HFC - 32/HFC - 125; (45/55) Refer to SNAP Notice 4 and SNAP Notice 25.

### 16 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute

R - 417A ISCEON - 59; NU - 22 (new composition); HFC - 125/HFC - 134a/HC 600; (46.6/50/3.4) Refer to SNAP Notice 11 and SNAP Notice 25.

R - 417C ICOR; Hot Shot 2; HFC 125/HFC - 134a/HC - 600 (19.5/78.8/1.7) Refer to SNAP Acceptability Determination 26.

R - 421A Choice R - 421A; HFC - 125/HFC - 134a; (58/ 42) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 422B ICOR XAC1; ICOR NU 22B; HFC - 125/HFC - 134a/HC 600a; (55/42/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 422C ICOR XLT1; One Shot; HFC - 125/HFC - 134a/HC 600a; (82/15/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 422D ISCEON MO29; HFC - 125/HFC - 134a/HC 600a; (65.1/31.5/3.4) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 424A RS - 44 (new formulation); HFC - 125/HFC - 134a/HC 600a/HC - 600/HC - 601a; (50.5/47/0.9/1/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 427A Forane 427A; HFC 32/HFC - 125/HFC 143a/HFC - 134a (15/25/10/50) Refer to SNAP Notice 23 and SNAP Notice 25.

### 17 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute R - 434 A RS - 45; HFC - 125/HFC 143a/HFC - 134a/R - 600a (63.2/18/16/2.8) Refer to SNAP Notice 22 and SNAP Notice 25.

R - 437A ISCEON MO49 PlusTM; HFC - 125/HFC - 134a/HC 600/HC - 601 (19.5/78.5/ 1.4/0.6) Refer to SNAP Notice 25.

R - 438A KDD5; ISCEON MO99; HFC - 32/HFC - 125/HFC 134a/HC - 600/HC - 601a; (8.5/45/44.2/1.7/0.6) Refer to SNAP Notice 24 and SNAP Notice 25.

R - 441A HCR - 188C; HC - 170/HC - 290/HC 600a/HC - 600; (3.1/54.8/ 6/36.1) Refer to SNAP Rule 19.

R - 507A HFC - 125/HFC - 143a; (50/ 50) Refer to Initial SNAP Rule , SNAP Notice 5, SNAP Notice 17, and SNAP Acceptability Determination 26. RS - 44 (2003 formulation) Composition is claimed as CBI Refer to SNAP Notice 18 and SNAP Notice 25.

THR - 03 Composition is claimed as CBI Refer to SNAP Notice 11.

1 Refer to IPCC Fourth Assessment Report for GWP value.

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# 5 CHILLERS The references to environmental and health properties of acceptable substitutes, substitutes acceptable subject to use conditions, and substitutes whose status would change under the final rule for new chillers are summarized in the table below. (Substitutes previously listed as unacceptable are not included here.) Table 5 . Environmental and Health Properties of Refrigerants in Chillers 1

Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Ammonia Absorption R - 717 Refer to SNAP Notice 5 and SNAP Notice 25. Ammonia Vapor Compression R - 717 Refer to SNAP Notice 5 and SNAP Notice 25. Desiccant Cooling N/A Refer to Initial SNAP Rule , SNAP Notice 5, and SNAP Notice 25. Evaporative Cooling N/A Refer to SNAP Notice 5 and SNAP Notice 25. FOR12A Composition is claimed as CBI Refer to SNAP Notice 14.

FOR12B Composition is claimed as CBI Refer to SNAP Notice 14.

HFC - 134a HFC - 134a; 1,1,1,2 - tetrafluoroethane; CAS # 811 - 97 - 2 Refer to SNAP Rule 20, SNAP Notice 10, and SNAP Notice 25.

### 19 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute HFC - 227ea 1,1,1,2,3,3,3 - heptafluoropropane; CAS # 431 - 89 - 0 Refer to SNAP Notice 10 and SNAP Notice 25. 2

HFC - 236fa 1,1,1,3,3,3 - hexafluoropropane; CAS # 690 - 39 - 1 Refer to SNAP Notice 4, SNAP Notice 6, and SNAP Notice 10.

HFC - 245fa Gentron®245fa; 1,1,1,3,3 - pentafluoropropane; CAS # 460 - 73 - 1 Refer to SNAP Notice 13, SNAP Notice 20, and SNAP Notice 25.

HFO - 1234ze (E) trans - 1,3,3,3 - tetrafluoroprop 1 - ene; CAS # - 29118 - 24 - 9 Refer to SNAP Notice 24 and SNAP Notice 25.

Ikon A Ikon 12; Blend Zeta; Composition is claimed as CBI Refer to SNAP Notice 13. 2

I kon B Composition is claimed as CBI Refer to SNAP Notice 13.

R - 423A Isceon 39TC; Centri - Cool; HFC 134a/HFC - 227ea; (52.5/47.5) Refer to SNAP Notice 25. KDD6 Composition is claimed as CBI Refer to SNAP Notice 23.

R - 407C Suva 407C; Klea 407C; HFC - 32/HFC - 125/HFC - 134a; (23/25/52) Refer to SNAP Notice 4, SNAP 17, and SNAP Notice 18. 2

### 20 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute R - 417C ICOR; Hot Shot 2; HFC 125/HFC - 134a/HC - 600 (19.5/78.8/1.7) Refer to SNAP Acceptability Determination 26.

R - 422C ICOR XLT1; One Shot; HFC - 125/HFC - 134a/HC - 600a; (82/15/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 426A RS - 24 (new formulation); HFC - 125/HFC - 134a/HC 600/HC - 601a (5.1/93/ 1.3/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 450A Solstice® N – 13; HFC - 134a/HFO - 1234ze(E); (42/58) Refer to SNAP Acceptability Determination 29. RS - 24 (2002 formulation) Composition is claimed as CBI Refer to SNAP Notice 17 and SNAP Notice 25. SP34E Composition is claimed as CBI Refer to SNAP Notice 14, SNAP Notice 15, and SNAP Notice 25. THR - 02 Composition is claimed as CBI Refer to SNAP Notice 11. Tran s - 1 - chloro 3,3,3 - trifluoro prop - 1 - ene Solstice 1233zd(E); CAS # 102687 - 65 - 0 Refer to SNAP Acceptability Determination 27. Water/Lithium Bromide Absorption N/A Refer to Initial SNAP Rule , SNAP Notice 5, and SNAP Notice 25.

1 HCFC - 22 and several blends containing HCFCs are also listed as acceptable but their use is severely restricted by t he phasedown in HCFC production and

consumption. 2 Refer to IPCC Fourth Assessment Report for GWP value.

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# 6 HOUSEHOLD REFRIGERATORS AND FREEZERS The references to environmental and health properties of acceptable substitutes, substitutes acceptable , subject to use conditions, and substitutes whose status would change under the final rule for new household refrigerators and freezers are summarized in the table below. (Substitutes previously listed as unacceptable are not included here.) Table 6 . Enviro nmental and Health Properties of Refrigerants in Household Refrigerators and Freezers 1

Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Ammonia Absorption R - 717 Refer to SNAP Notice 5 and SNAP Notice 25. FOR12A Composition is claimed as CBI Refer to SNAP Notice 14.

FOR12B Composition is claimed as CBI Refer to SNAP Notice 14.

HFC - 134a 1,1,1,2 - tetrafluoroethane; CAS # 811 - 97 - 2 Refer to SNAP Rule 20, SNAP Notice 10, and SNAP Notice 25.

HFC - 152a 1,1 - difluoroethane; CAS # 75 - 34 - 3 Refer to SNAP Rule 14 and SNAP Notice 25.

Ikon A Ikon 12; Blend Zeta; Composition is claimed as CBI Refer to SNAP Notice 13. 2

### 22 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute I kon B Composition is claimed as CBI Refer to SNAP Notice 13. 2

KDD6 Composition is claimed as CBI Refer to SNAP Notice 23.

R - 290 Propane; CAS # 74 - 98 - 6 Refer to SNAP Rule 19. R - 404A SUVA HP62; HFC - 125/HFC 143a/HFC - 134a; (44/52/ 4) Refer to Initial SNAP Rule and SNAP Notice 17. 2

R - 407C Suva 407C; Klea 407C; HFC - 32/HFC - 125/HFC - 134a; (23/25/52) Refer to SNAP Notice 4, SNAP 17, and SNAP Notice 18. 2

R - 421B HFC - 125/HFC - 134a; (85/15) Refer to SNAP Notice 21 and SNAP Notice 25. R - 422C ICOR XLT1; One Shot; HFC - 125/HFC - 134a/HC - 600a; (82/15/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 426A RS - 24 (new formulation); HFC - 125/HFC - 134a/HC 600/HC - 601a (5.1/93/ 1.3/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 441A HCR - 188C; HC - 170/HC - 290/HC - 600a/HC 600; (3.1/54.8/ 6/36.1) Refer to SNAP Rule 17.

### 23 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute R - 450A Solstice® N – 13; HFC - 134a/HFO - 1234ze(E); (42/58) Refer to SNAP Acceptability Determination 29.

R - 600a 2 - methylpropane; isobutane Refer to SNAP Rule 17. RS - 24 (2002 formulation) Composition is claimed as CBI Refer to SNAP Notice 17 and SNAP Notice 25.

SP34E Composition is claimed as CBI Refer to SNAP Notice 14 and SNAP Notice 25.

THR - 01 Composition is claimed as CBI Refer to SNAP Notice 8. THR - 02 Composition is claimed as CBI Refer to SNAP Notice 11.

1 HCFC - 22 and several blends containing HCFCs are also listed as acceptable but their use is severely restricted by the phasedown in HCFC production

and consumption. 2 Refer to IPCC Fourth Assessment Report for GWP value.

### 24 

# 7 FIRE SUPPRESSION AND EXPLOSION PROTECTION The references to environmental and health properties of acceptable substitutes, substitutes acceptable , subject to use conditions or narrowed use limits , and substitutes whose status would change under the final rule for fire suppression and explosion protection are summarized in the table below. (Substitutes previously listed as unacceptable are not included here.) Table 7 . Environmental and Health Properties of Alternatives in Fire Suppression and Explosion Protection 1 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, a nd Exposure Limit f or Each Listed Substitute C6 - perfluoroketone 1,1,1,2,2,4,5,5,5 - nonafluoro - 4 - (trifluoromethyl) - 3 - pentanone; Novec 1230 Refer to SNAP Rule 11 and SNAP Notice 17. C7 Fluoroketone C7 FK; FK - 6 - 1 - 14 Refer to SNAP Rule 18. ATK OS - 10 Gas generators suppress fire through production of water vapor and N 2 ; CAS# 7727 - 37 - 9 Refer to SNAP Notice 23. Carbon Dioxide R - 744; CO 2 ; CAS # 124 - 38 - 9 Refer to Initial SNAP Rule and SNAP Rule 14. C 3 F 8 PFC - 218; CEA - 308 Refer to SNAP Rule 1 and SNAP Rule 4. 2 C 4 F 10 PFC - 410; CEA - 410 Refer to SNAP Rule 1 and SNAP Rule 4. 2 C 6 F 14 PFC - 614; CEA - 614 Refer to SNAP Rule 4. 2

### 25 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, a nd Exposure Limit f or Each Listed Substitute CF 3 l CAS# 2314 - 97 - 8 Refer to SNAP Rule 1, SNAP Rule 2, and SNAP Rule 9. 2 Dry Chemical Powdered solids such as sodium bicarbonate or ammonium polyphosphate Refer to Initial SNAP Rule. Firebane®1115 N/A Refer to SNAP Acceptability Determination 26. Firebane®1170 N/A Refer to SNAP Acceptability Determination 26. Firebane®1179 N/A Refer to SNAP Acceptability Determination 26 Firebane® All - Weather 1115 N/A Refer to SNAP Acceptability Determination 26. Foam N/A Refer to Initial SNAP Rule . Foam A Formerly Water Mist/Surfactant Blend A; Phirex+ Refer to SNAP Notice 5. Gelled Halocarbon /Dry Chemical Suspension I nitially listed as Powdered Aerosol B Refer to SNAP Rule 1 and SNAP Notice 1.

### 26 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, a nd Exposure Limit f or Each Listed Substitute Gelled Halocarbon/Dry Chemical Suspension (Envirogel) with ammonium polyphosphate additive N/A Refer to SNAP Rule 9. Gelled Halocarbon /Dry Chemical Suspension (Envirogel) with any additive other than ammonium polyphosphate or sodium bicarbonate N/A Refer to SNAP Rule 9. Gelled Halocarbon /Dry Chemical Suspension with sodium bicarbonate (Envirogel B25 + 36) N/A Refer to SNAP Rule 15.

H Galden HFPEs N/A Refer to SNAP Rule 11. Halotron II N/A Refer to SNAP Rule 9.

HCFC - 123 2,2 - dichloro - 1,1,1 - trifluoroethane ; CAS# 306 - 83 - 2; FE - 232 Refer to SNAP Notice 1.

HCFC - 124 2 - chloro - 1,1,1,2 - tetrafluoroethane ; FE - 241 ; CAS # 2837 - 89 - 0 Refer to Initial SNAP Rule and SNAP Notice 1. 2

### 27 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, a nd Exposure Limit f or Each Listed Substitute HCFC - 22 Chlorodifluoromethane; CAS# 75 - 45 - 6 Refer to SNAP Rule 20 and SNAP Notice 25. [HCFC Blend] A NAF S - III Refer to Initial SNAP Rule . [HCFC Blend] B Halotron 1 Refer to Initial SNAP Rule . [HCFC Blend] C NAF P - III Refer to SNAP Notice 1. [HCFC Blend] D Blitz III Refer to SNAP Notice 1. [HCFC Blend] E NAF P - IV Refer to SNAP Rule 6. HFC - 125 1,1,1,2,2 - pentafluoropropane; FE 25 ; CAS # 354 - 33 - 6 Refer to Initial SNAP Rule and SNAP Notice 25. 2 HFC - 125 with 0.1% d limonene NAF S - 125 Refer to SNAP Notice 18. HFC - 134a 1,1,1,2 - tetrafluoroethane; CAS # 811 - 97 - 2 Refer to Initial SNAP Rule , SNAP Notice 10, and SNAP Notice 25.

### 28 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, a nd Exposure Limit f or Each Listed Substitute HFC227 - BC HFC - 227ea used together with sodium bicarbonate Refer to SNAP Rule 11.

HFC - 227ea 1,1,1,2,3,3,3 - heptafluoropropane; FM - 200 ; FE - 227 ; CAS # 431 - 89 - 0 Refer to SNAP Notice 10 and SNAP Notice 25. 2 HFC - 227ea with 0.1% d limonene NAF S 227 Refer to SNAP Notice 19. HFC - 23 trifluoromethane; CHF3; CAS #75 - 46 - 7 Refer to Initial SNAP Rule , SNAP Notice 1 and SNAP Notice 10. 2 HFC - 236fa 1,1,1,3,3,3 - hexafluoropropane; FE - 36 ; CAS # 690 - 39 - 1 Refer to SNAP Notice 4, SNAP Notice 6, and SNAP Notice 10. 2 IG - 01 Argotec; formerly Inert Gas Blend C Refer to SNAP Notice 3. IG - 100 NN - 100 Refer to SNAP Rule 6. IG - 541 Inergen Refer to Initial SNAP Rule . Inert Gas/Powdered Aerosol Blend FS 0140 Refer to SNAP Rule 1.

### 29 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, a nd Exposure Limit f or Each Listed Substitute N2 Towers® System N/A Refer to SNAP Acceptability Determination 26. Phosphorus tribromide PhostrEx Refer to SNAP Rule 15. Powdered Aerosol A SFE Refer to Initial SNAP Rule . Powdered Aerosol C PyroGen; Soyuz Refer to SNAP Notice 4. Powdered Aerosol D Aero K/Stat X Refer to SNAP Rule 15. Powdered Aerosol E Fire Pro Refer to SNAP Rule 15. Powdered Aerosol F KSA® Refer to SNAP Rule 18. Powdered Aerosol G Dry Sprinkler Powdered Aerosol (DPSA) Fixed Generators Refer to SNAP Rule 15. SF 6 Sulfur hexafluoride Refer to SNAP Rule 9.

### 30 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, a nd Exposure Limit f or Each Listed Substitute Solution of 50% potassium acetate and 50% water K - Ace Refer to SNAP Acceptability Determination 28. [Surfactant Blend] A Cold Fire; FlameOut; Fire Strike Refer to SNAP Acceptability Determination 27. Uni - light Advanced Fire Fighting Foam 1% water mist system Uni - light AFFF 1% Refer to SNAP Notice 20. Victaulic Vortex Systems N/A Refer to SNAP Notice 23. Water H 2 O; CAS # 7732 - 18 - 5 Refer to Initial SNAP Rule and SNAP Notice 10. Water Mist Systems using Potable or Natural Sea Water N/A Refer to SNAP Notice 3.

1 All substitutes listed in this end - use are nonflammable. 2 Refer to IPCC Fourth Assessment Report for GWP value.

### 31 

# 8 COMMERCIAL ICE MACHINES The references to environmental and health properties of acceptable substitutes and substitutes acceptable subject to use conditions for new commerc ial ice machines are summarized in the table below. (Substitutes previously listed as unacceptable are not included here.) Table 8 . Environmental and Health Properties of Refrigerants in Commercial Ice Machines 1 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Ammonia Absorption R - 717 Refer to SNAP Notic e 5 and SNAP Notice 25. Ammonia Vapor Compression R - 717 Refer to SNAP Notice 5 and SNAP Notice 25. FOR12A Composition is claimed as CBI Refer to SNAP Notice 14.

FOR12B Composition is claimed as CBI Refer to SNAP Notice 14.

HFC - 134a 1,1,1,2 - tetrafluoroethane; CAS # 811 - 97 - 2 Refer to SNAP Rule 20, SNAP Notice 10, and SNAP Notice 25.

ICOR AT - 22 HFC - 125/HC - 290/HFC - 134a/ HC - 600a; (55/1/42.5/ 1.5) Refer to SNAP Notice 20 and SNAP Notice 25.

### 32 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Ikon A Ikon 12; Blend Zeta; Composition is claimed as CBI Refer to SNAP Notice 13. 2

I kon B Composition is claimed as CBI Refer to SNAP Notice 13.

KDD6 Composition is claimed as CBI Refer to SNAP Notice 23.

R - 404A SUVA HP62; HFC - 125/HFC 143a/HFC - 134a; (44/52/ 4) Refer to Initial SNAP Rule and SNAP Notice 17. 2

R - 407A Klea 60; Klea 407A; HFC - 32/HFC - 125/HFC - 134a (20/40/40); Refer to SNAP Notice 1, SNAP Notice 23, and SNAP Notice 25.

R - 407B Klea 61; HFC - 32/HFC - 125/HFC - 134a; (10/70/20) Refer to SNAP Notice 1 and SNAP Notice 25.

R - 407C Suva 407C; Klea 407C; HFC - 32/HFC - 125/HFC - 134a; (23/25/52) Refer to SNAP Notice 4, SNAP 17, and SNAP Notice 18. 2

R - 407F Genetron Performax LT; HFC - 32/HFC - 125/HFC - 134a (30/30/40) Refer to SNAP Acceptability Determination 26.

### 33 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute R - 410A AZ - 20; Suva 9100; Puron; HFC - 32/HFC - 125; (50/50) Refer to SNAP Notice 4 and SNAP Notice 17. 2

R - 410B HFC - 32/HFC - 125; (45/55) Refer to SNAP Notice 4 and SNAP Notice 25.

R - 417A ISCEON - 59; NU - 22 (new composition); HFC - 125/HFC - 134a/HC - 600; (46.6/50/3.4) Refer to SNAP Notice 11 and SNAP Notice 25.

R - 417C ICOR; Hot Shot 2; HFC 125/HFC - 134a/HC - 600 (19.5/78.8/1.7) Refer to SNAP Acceptability Determination 26.

R - 421A Choice R - 421A; HFC - 125/HFC - 134a; (58/ 42) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 421B HFC - 125/HFC - 134a; (85/15) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 422A ISCEON 79; HFC - 125/HFC - 134a/HC - 600a; (85.1/11.5/3.4) Refer to SNAP Notice 19. 2

R - 422B ICOR XAC1; ICOR NU - 22B; HFC - 125/HFC - 134a/HC - 600a; (55/42/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 422C ICOR XLT1; One Shot; HFC - 125/HFC - 134a/HC - 600a; (82/15/3) Refer to SNAP Notice 20 and SNAP Notice 25.

### 34 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute R - 422D ISCEON MO29; HFC - 125/HFC - 134a/HC - 600a; (65.1/31.5/3.4) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 424A RS - 44 (new formulation); HFC - 125/HFC - 134a/HC 600a/HC - 600/HC - 601a; (50.5/47/0.9/1/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 426A RS - 24 (new formulation); HFC - 125/HFC - 134a/HC 600/HC - 601a (5.1/93/ 1.3/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 434a RS - 45; HFC - 125/HFC 143a/HFC - 134a/R - 600a (63.2/18/16/2.8) Refer to SNAP Notice 22 and SNAP Notice 25.

R - 438A KDD5; ISCEON MO99; HFC - 32/HFC - 125/HFC 134a/HC - 600/HC - 601a; (8.5/45/44.2/1.7/0.6) Refer to SNAP Notice 24 and SNAP Notice 25.

R - 441A HCR - 188C; HC - 170/HC - 290/HC - 600a/HC 600; (3.1/54.8/ 6/36.1) Refer to SNAP Rule 17.

R - 450A Solstice® N – 13; HFC - 134a/HFO - 1234ze(E); (42/58) Refer to SNAP Acceptability Determination 29.

R - 507A HFC - 125/HFC - 143a; (50/ 50) Refer to Initial SNAP Rule, SNAP Notice 5, SNAP Notice 17, and SNAP Acceptability Determination 26.

### 35 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute RS - 24 (2002 formulation) Composition is claimed as CBI Refer to SNAP Notice 17 and SNAP 25. RS - 44 (2003 formulation) Composition is claimed as CBI Refer to SNAP Notice 18 and SNAP Notice 25. Stirling Cycle N/A Refer to Initial SNAP Rule and SNAP Notice 25. THR - 02 Composition is claimed as CBI Refer to SNAP Notice 11.

THR - 03 Composition is claimed as CBI Refer to SNAP Notice 11.

THR - 04 Composition is claimed as CBI Refer to SNAP Notice 10.

1 HCFC - 22 and several blends containing HCFCs are also listed as acceptable but their use is severely restricted by the phasedown in HCFC production

and consumption. 2 Refer to IPCC Fourth Assessment Report for GWP value.

### 36 

# 9 WATER COOLERS The references to environmental and health properties of acceptable substitutes and substitutes acceptable , subject to use conditions , for new water coolers are summarized in the table below. (Substitutes previously listed as unacceptable are not included here.) Tab le 9 . Environmental and Health Properties of Refrigerants in Water Coolers 1 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute FOR12A Composition is claimed as CBI Refer to SNAP Notice 14.

FOR12B Composition is claimed as CBI Refer to SNAP Notice 14.

HFC - 134a 1,1,1,2 - tetrafluoroethane; CAS # 811 - 97 - 2 Refer to SNAP Rule 20, SNAP Notice 10, and SNAP Notice 25.

ICOR AT - 22 HFC - 125/HC - 290/HFC - 134a/ HC 600a; (55/1/42.5/ 1.5) Refer to SNAP Notice 20 and SNAP Notice 25.

Ikon A Ikon 12; Blend Zeta; Composition is claimed as CBI Refer to SNAP Notice 13. 2

I kon B Composition is claimed as CBI Refer to SNAP Notice 13. 2

KDD6 Composition is claimed as CBI Refer to SNAP Notice 23.

### 37 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute R - 404A SUVA HP62; HFC - 125/HFC 143a/HFC - 134a; (44/52/ 4) Refer to Initial SNAP Rule and SNAP Notice 17. 2

R - 407B Klea 61; HFC - 32/HFC - 125/HFC - 134a; (10/70/20) Refer to SNAP Notice 1 and SNAP Notice 25.

R - 407C Suva 407C; Klea 407C; HFC - 32/HFC - 125/HFC - 134a; (23/25/52) Refer to SNAP Notice 4, SNAP 17, and SNAP Notice 18. 2

R - 410A AZ - 20; Suva 9100; Puron; HFC - 32/HFC - 125; (50/50) Refer to SNAP Notice 4 and SNAP Notice 17. 2

R - 410B HFC - 32/HFC - 125; (45/55) Refer to SNAP Notice 4 and SNAP Notice 25.

R - 417A ISCEON - 59; NU - 22 (new composition); HFC - 125/HFC - 134a/HC - 600; (46.6/50/3.4) Refer to SNAP Notice 11 and SNAP Notice 25.

R - 421A Choice R - 421A; HFC - 125/HFC - 134a; (58/ 42) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 422B ICOR XAC1; ICOR NU - 22B; HFC - 125/HFC - 134a/HC - 600a; (55/42/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 422C ICOR XLT1; One Shot; HFC - 125/HFC - 134a/HC - 600a; (82/15/3) Refer to SNAP Notice 20 and SNAP Notice 25.

### 38 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute R - 422D ISCEON MO29; HFC - 125/HFC - 134a/HC - 600a; (65.1/31.5/3.4) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 426A RS - 24 (new formulation); HFC - 125/HFC - 134a/HC - 600/HC 601a (5.1/93/ 1.3/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 434a RS - 45; HFC - 125/HFC - 143a/HFC 134a/R - 600a (63.2/18/16/2.8) Refer to SNAP Notice 22 and SNAP Notice 25.

R - 438A KDD5; ISCEON MO99; HFC - 32/HFC - 125/HFC - 134a/HC 600/HC - 601a; (8.5/45/44.2/1.7/0.6) Refer to SNAP Notice 24 and SNAP Notice 25.

R - 450A Solstice® N – 13; HFC - 134a/HFO - 1234ze(E); (42/58) Refer to SNAP Acceptability Determination 29.

R - 507A HFC - 125/HFC - 143a; (50/ 50) Refer to Initial SNAP Rule , SNAP Notice 5, SNAP Notice 17, and SNAP Acceptability Determination 26. RS - 24 (2002 formulation) Composition is claimed as CBI Refer to SNAP Notice 17 and SNAP 25.

THR - 02 Composition is claimed as CBI Refer to SNAP Notice 11. THR - 04 Composition is claimed as CBI Refer to SNAP Notice 10. 1 HCFC - 22 and several blends containing HCFCs are also listed as acceptable but their use is severely restricted by the phasedown in HCFC production

and consumption. 2 Refer to IPCC Fourth Assessment Report for GWP value.

### 39 

# 10 COLD STORAGE WAREHOUSES The references to environmental and health properties of acceptable substitutes, substitutes acceptable , subject to use co nditions, and substitutes whose status would change under the final rule for new cold storage warehouses are summarized in the table below. (Substitutes previously listed as unacceptable are not included here.) Table 10 . Environmental and Health Properties of Refrigerants in Cold Storage Warehouses 1 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Ammonia Absorption R - 717 Refer to SNAP Notice 5 and SNAP Notice 25. Ammonia Vapor Compression R - 717 Refer to SNAP Notice 5 and SNAP Notice 25. Carbon Dioxide R - 744; CO 2 ; CAS # 124 - 38 - 9 Refer to SNAP Rule 14 and SNAP Notice 24 . Desiccant Cooling N/A Refer to Initial SNAP Rule , SNAP Notice 5 and SNAP Notice 25. Evaporative Cooling N/A Refer to Initial SNAP Rule . FOR12A Composition is claimed as CBI Refer to SNAP Notice 14.

### 40 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute FOR12B Composition is claimed as CBI Refer to SNAP Notice 14.

HFC - 134a 1,1,1,2 - tetrafluoroethane; CAS # 811 - 97 - 2 Refer to SNAP Rule 20, SNAP Notice 10, and SNAP Notice 25. HFC - 134a/HBr (92/8) as the primary heat transfer fluid in secondary - loop equipment N/A Refer to SNAP Notice 15.

HFC - 227ea 1,1,1,2,3,3,3 - heptafluoropropane; CAS # 431 - 89 - 0 Refer to SNAP Notice 10 and SNAP Notice 25.

ICOR AT - 22 HFC - 125/HC - 290/HFC - 134a/ HC 600a; (55/1/42.5/ 1.5) Refer to SNAP Notice 20 and SNAP Notice 25.

Ikon A Ikon 12; Blend Zeta; Composition is claimed as CBI Refer to SNAP Notice 13. 2

I kon B Composition is claimed as CBI Refer to SNAP Notice 13. 2

R - 423A Isceon 39TC; Centri - Cool; HFC 134a/HFC - 227ea; (52.5/47.5) Refer to SNAP Notice 25.

### 41 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute KDD6 Composition is claimed as CBI Refer to SNAP Notice 23. Pressure Stepdown N/A Refer to I nitial SNAP Rule and SNAP Notice 25. R - 404A SUVA HP62; HFC - 125/HFC 143a/HFC - 134a; (44/52/ 4) Refer to Initial SNAP Rule and SNAP Notice 2. 2

R - 407A Klea 60; Klea 407A; HFC - 32/HFC - 125/HFC - 134a (20/40/40); Refer to SNAP Notice 1, SNAP Notice 23, and SNAP Notice 25.

R - 407B Klea 61; HFC - 32/HFC - 125/HFC - 134a; (10/70/20) Refer to SNAP Notice 1 and SNAP Notice 25.

R - 407C Suva 407C; Klea 407C; HFC - 32/HFC - 125/HFC - 134a; (23/25/52) Refer to SNAP Notice 4, SNAP 17, and SNAP Notice 18. 2

R - 407F Genetron Performax LT; HFC - 32/HFC - 125/HFC - 134a (30/30/40) Refer to SNAP Acceptability Determination 26.

R - 410A AZ - 20; Suva 9100; Puron; HFC - 32/HFC - 125; (50/50) Refer to SNAP Notice 4 and SNAP Notice 17. 2

### 42 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute R - 410B HFC - 32/HFC - 125; (45/55) Refer to SNAP Notice 4 and SNAP Notice 25.

R - 417A ISCEON - 59; NU - 22 (new composition); HFC - 125/HFC - 134a/HC - 600; (46.6/50/3.4) Refer to SNAP Notice 11 and SNAP Notice 25.

R - 417C ICOR; Hot Shot 2; HFC - 125/HFC 134a/HC - 600 (19.5/78.8/1.7) Refer to SNAP Acceptability Determination 26.

R - 421A Choice R - 421A; HFC - 125/HFC - 134a; (58/ 42) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 421B Choice R - 421B; HFC - 125/HFC 134a; (85/15) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 422A ISCEON 79; HFC - 125/HFC - 134a/HC - 600a; (85.1/11.5/3.4) Refer to SNAP Notice 19. 2

R - 422B ICOR XAC1; ICOR NU - 22B; HFC - 125/HFC - 134a/HC - 600a; (55/42/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 422C ICOR XLT1; One Shot; HFC - 125/HFC - 134a/HC - 600a; (82/15/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 422D ISCEON MO29; HFC - 125/HFC - 134a/HC - 600a; (65.1/31.5/3.4) Refer to SNAP Notice 21 and SNAP Notice 25.

### 43 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute R - 424A RS - 44 (new formulation); HFC - 125/HFC - 134a/HC 600a/HC - 600/HC - 601a; (50.5/47/0.9/1/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 426A RS - 24 (new formulation); HFC - 125/HFC - 134a/HC - 600/HC 601a (5.1/93/ 1.3/0.6) Refer to SNAP Notice 21 and SNAP Notice 25.

R - 434 A RS - 45; HFC - 125/HFC - 143a/HFC 134a/R - 600a (63.2/18/16/2.8) Refer to SNAP Notice 22 and SNAP Notice 25.

R - 438A KDD5; ISCEON MO99; HFC - 32/HFC - 125/HFC - 134a/HC 600/HC - 601a; (8.5/45/44.2/1.7/0.6) Refer to SNAP Notice 24 and SNAP Notice 25.

R - 450A Solstice® N – 13; HFC - 134a/HFO - 1234ze(E); (42/58) Refer to SNAP Acceptability Determination 29.

R - 507A HFC - 125/HFC - 143a; (50/ 50) Refer to Initial SNAP Rule , SNAP Notice 5, SNAP Notice 17, and SNAP Acceptability Determination 26. RS - 24 (2002 formulation) Composition is claimed as CBI Refer to SNAP Notice 17 and SNAP Notice 25. RS - 44 (2003 formulation) Composition is claimed as CBI Refer to SNAP Notice 18 and SNAP Notice 25.

### 44 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Self - Chilling cans using CO 2 N/A Refer to SNAP Notice 8 and SNAP Notice 25. Self - Chilling cans using recycled CO 2 N/A Refer to SNAP Notice 8 and SNAP Notice 25. SP34E Composition is claimed as CBI Refer to SNAP Notice 14 and SNAP Notice 25. Stirling Cycle N/A Refer to Initial SNAP Rule and SNAP Notice 25. THR - 02 Composition is claimed as CBI Refer to SNAP Notice 11.

THR - 04 Composition is claimed as CBI Refer to SNAP Notice 10.

1 HCFC - 22 and several blends containing HCFCs are also listed as acceptable but their use is severely restricted by the phasedown in HCFC production

and consumption. 2 Refer to IPCC Fourth Assessment Report for GWP value.

### 45 

# 11 VERY LOW TEMPERATURE REFRIGERATION The references to environmental and health properties of acceptable substitutes and substitutes acceptable , subject to use conditions , for very low temperature refrigeration are summarized in the table below. (Substitutes previously listed as unacc eptable are not included here.) T able 11 . Environmental and Health Properties of Refrigerants in Very Low Temperature Refrigeration 1

Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute Carbon Dioxide R - 744; CO 2 ; CAS # 124 - 38 - 9 Refer to SNAP Rule 14 and SNAP Notice 24 . HFC - 23 trifluoromethane ; CHF3; CAS #75 - 46 - 7 Refer to Initial SNAP Rule , SNAP Notice 1 and SNAP Notice 10. HFC - 245fa 1,1,1,3,3 - pentafluoroethane; CAS # 460 - 73 - 1 Refer to SNAP Notice 11, SNAP Notice 18, and SNAP Notice 25 .

HFE - 7000 N/A Refer to SNAP Notice 16 and SNAP Notice 25. HFE - 7100 as a secondary heat transfer fluid in not - in - kind systems N/A Refer to SNAP Notice 14 and SNAP Notice 25. HFE - 7200 as a secondary heat transfer fluid in not - in - kind systems N/A Refer to SNAP Notice 14 and SNAP Notice 25.

### 46 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute ICOR AT - 22 HFC - 125/HC - 290/HFC 134a/ HC - 600a; (55/1/42.5/ 1.5) Refer to SNAP Notice 20 and SNAP Notice 25.

ISCEON 89 Rhodia Isceon 89; HFC 125/ HC - 290/PFC - 218; (86/5/9) Refer to SNAP Notice 18. NARM - 502 N/A Refer to SNAP Notice 5. PFC - 330ST, PFC 550HC, PFC 660HC, PFC 1100HC, PFC 1100LT, PGC 100, PGC - 150, PFC - 331ST, PFC 551HC, PFC 661HC, PFC 1101HC, and PGC - 151 N/A Refer to SNAP Notice 15.

PFC - 1102HC, PFC - 662HC, PFC 552HC, and FLC 15 N/A Refer to SNAP Notice 16.

R - 170 Ethane; CAS # 60 - 29 - 7 Refer to SNAP Rule 19. R - 404A SUVA HP62; HFC 125/HFC - 143a/HFC 134a; (44/52/ 4) Refer to Initial SNAP Rule and SNAP Notice 17. 2

### 47 Substitute Name Further Identification Information for Substitute Reference to t he Applicable SNAP Rule, Notice , O r Acceptability Determination for t he ODP, GWP, VOC Status, Flammability , a nd Exposure Limit f or Each Listed Substitute

R - 410A AZ - 20; Suva 9100; Puron; HFC - 32/HFC - 125; (50/50) Refer to SNAP Notice 4 and SNAP Notice 17. 2

R - 403B ISCEON 69 - L Refer to SNAP Rule 1 and SNAP Notice 1.

R - 407C Suva 407C; Klea 407C; HFC - 32/HFC - 125/HFC 134a; (23/25/52) Refer to SNAP Notice 4, SNAP Notice 17, and SNAP Notice 18. 2

R - 422B ICOR XAC1; ICOR NU 22B; HFC - 125/HFC - 134a/HC 600a; (55/42/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 422C ICOR XLT1; One Shot; HFC - 125/HFC - 134a/HC 600a; (82/15/3) Refer to SNAP Notice 20 and SNAP Notice 25.

R - 507A HFC - 125/HFC - 143a; (50/ 50) Refer to Initial SNAP Rule , SNAP Notice 5, SNAP Notice 17, and SNAP Acceptability Determination 26. R - 508A PFC Blend Alpha; KLEA 5R3; Arcton TP5R3 Refer to SNAP Notice 1, SNAP Notice 3, and SNAP Notice 4. R - 508B SUVA 95 Refer to SNAP Notice 8. 1 HCFC - 22 and several blends containing HCFCs are also listed as acceptable but their use is severely restricted by the phasedown in HCFC production

and consumption. 2 Refer to IPCC Fourth Assessment Report for GWP value.

### 48 

# REFERENCES IPCC Fourth Assessment Report . Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M.Tignor and H.L. Miller (eds.)]. Cambridge Uni versity Press, Cambridge, United Kingdom and New York, NY, USA. U.S. EPA. 1994. Initial SNAP Rule. March 18, 1994. Available online at: http://www.epa.gov/ozone/fedregstr/59fr13044.html . U.S . EPA. 2015. Substitutes by Sector as of October 13, 2015. Available online at https://www.epa.gov/snap/substitutes - sector . U.S. EPA. 2015 a . SNAP Regulations: SNAP Notices of Ac ceptability (Notices 1, 2, 3, 4, 5, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18 , 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 , and 30 ). Available online at: http://www.epa.gov/spdpublc/snap/regulations.html . U.S. EPA. 2015 b . SNAP Regulations: SNAP Rules ( Initial SNAP Rule and Subsequent Rules 1, 4, 6, 9 , 11, 14, 15, 16 , 17 , 18, 19 , and 20 ). Available online at: http://www.epa.gov/spdpublc/snap/regulations.html .