WAC 173-443-040. List of prohibited substances

(1) Table 1 in this section lists prohibited substances in new products and equipment, as defined in WAC 173-443-030 , and the effective date of the prohibition, unless an exemption is provided for in WAC 173-443-050 . TABLE 1. Prohibited Substances for New Products and Equipment End-Use Category: Aerosol Propellants End-Use Prohibited Substances Effective Date Aerosol propellants HFC-125, HFC-134a, HFC-227ea and blends of HFC-227ea and HFC-134a January 1, 2020 End-Use Category: Aerosol Propellants End-Use Prohibited Substances Effective Date Aerosol propellants HFC-125, HFC-134a, HFC-227ea and blends of HFC-227ea and HFC-134a January 1, 2020 End-Use Category: Air Conditioning End-Use Prohibited Substances Effective Date Centrifugal chillers - Cooling only (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, HFC-236fa, HFC-245fa, R-125/134a/600a (28.1/70/1.9), R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-423A, R-424A, R-434A, R-438A, R-507A, RS-44 (2003 composition), THR-03 January 1, 2024 Positive displacement chillers - Cooling only (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, KDD6, R-125/134a/600a (28.1/70/1.9), R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-424A, R-434A, R-437A, R-438A, R-507A, RS-44 (2003 composition), SP34E, THR-03 January 1, 2024 Centrifugal chillers - Heating and heating and cooling (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, HFC-236fa, HFC-245fa, R-125/134a/600a (28.1/70/1.9), R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-423A, R-424A, R-434A, R-438A, R-507A, RS-44 (2003 composition), THR-03 January 1, 2025 Positive displacement chillers - Heating and heating and cooling (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, KDD6, R-125/134a/600a (28.1/70/1.9), R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-424A, R-434A, R-437A, R-438A, R-507A, RS-44 (2003 composition), SP34E, THR-03 January 1, 2025 End-Use Category: Air Conditioning End-Use Prohibited Substances Effective Date Centrifugal chillers - Cooling only (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, HFC-236fa, HFC-245fa, R-125/134a/600a (28.1/70/1.9), R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-423A, R-424A, R-434A, R-438A, R-507A, RS-44 (2003 composition), THR-03 January 1, 2024 Positive displacement chillers - Cooling only (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, KDD6, R-125/134a/600a (28.1/70/1.9), R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-424A, R-434A, R-437A, R-438A, R-507A, RS-44 (2003 composition), SP34E, THR-03 January 1, 2024 Centrifugal chillers - Heating and heating and cooling (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, HFC-236fa, HFC-245fa, R-125/134a/600a (28.1/70/1.9), R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-423A, R-424A, R-434A, R-438A, R-507A, RS-44 (2003 composition), THR-03 January 1, 2025 Positive displacement chillers - Heating and heating and cooling (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, KDD6, R-125/134a/600a (28.1/70/1.9), R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-424A, R-434A, R-437A, R-438A, R-507A, RS-44 (2003 composition), SP34E, THR-03 January 1, 2025 End-Use Category: Refrigeration End-Use Prohibited Substances Effective Date Cold storage warehouses (New) HFC-227ea, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407A, R-407B, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-423A, R-424A, R-428A, R-434A, R-438A, R-507A, RS-44 (2003 composition) January 1, 2023 Household refrigerators and freezers (New) FOR12A, FOR12B, HFC-134a, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), RS-44 (2003 formulation), SP34E, THR-03 January 1, 2022 Household refrigerators and freezers - Compact (New) FOR12A, FOR12B, HFC-134a, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), RS-44 (2003 formulation), SP34E, THR-03 January 1, 2021 Household refrigerators and freezers - Built-in appliances (New) FOR12A, FOR12B, HFC-134a, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), RS-44 (2003 formulation), SP34E, THR-03 January 1, 2023 Supermarket systems (Retrofit) R-404A, R-407B, R-421B, R-422A, R-422C, R-422D, R-428A, R-434A, R-507A January 1, 2020 Supermarket systems (New) HFC-227ea, R-404A, R-407B, R-421B, R-422A, R-422C, R-422D, R-428A, R-434A, R-507A January 1, 2020 Remote condensing units, except for automatic commercial ice machines (Retrofit) R-404A, R-407B, R-421B, R-422A, R-422C, R-422D, R-428A, R-434A, R-507A January 1, 2020 Remote condensing units, except for automatic commercial ice machines (New) HFC-227ea, R-404A, R-407B, R-421B, R-422A, R-422C, R-422D, R-428A, R-434A, R-507A January 1, 2020 Remote condensing units, automatic commercial ice machines (New and retrofit) R-402A, R-402B, R-404A, R-407B, R-408A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-428A, R-434A, R-438A, R-507A, R-125/290/134a/600a (55.0/1.0/42.5/1.5), RB-276, RS-24 (2002 formulation), RS-44 (2003 formulation), GHG-X5 January 1, 2027 Stand-alone units, except for automatic commercial ice machines (Retrofit) R-404A, R-507A January 1, 2020 Stand-alone medium-temperature units (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407A, R-407B, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), RS-44 (2003 formulation), SP34E, THR-03 January 1, 2020 Stand-alone low-temperature units (New) HFC-227ea, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407A, R-407B, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-44 (2003 formulation) January 1, 2020 Stand-alone units, automatic commercial ice machines; Batch type with a harvest rate less than or equal to 1,000 pounds of ice per 24 hours; and Continuous type with a harvest rate less than or equal to 1,200 pounds of ice per 24 hours (New and retrofit) Refrigerants with a GWP greater than 150 January 1, 2026 Stand-alone units, automatic commercial ice machines; Batch type with a harvest rate greater than 1,000 pounds of ice per 24 hours; and Continuous type with a harvest rate greater than 1,200 pounds of ice per 24 hours (New and retrofit) R-402A, R-402B, R-404A, R-407A, R-407B, R-407C, R-407F, R-408A, R-410A, R-410B, R-411A, R-411B, R-417A, R-417C, R-420A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-442A, R-507, R-507A, HFC-134a, R-125/290/134a/600a (55.0/1.0/42.5/1.5), RB-279, RS-24 (2002 formulation), RS-44 (2003 formulation), GHG-X5, G2018c, Freeze 12 January 1, 2027 Refrigerated food processing and dispensing equipment (New) HFC-227ea, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407A, R-407B, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-44 (2003 formulation) January 1, 2021 Vending machines (Retrofit) R-404A, R-507A January 1, 2022 Vending machines (New) FOR12A, FOR12B, HFC-134a, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-426A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), SP34E January 1, 2022 End-Use Category: Refrigeration End-Use Prohibited Substances Effective Date Cold storage warehouses (New) HFC-227ea, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407A, R-407B, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-423A, R-424A, R-428A, R-434A, R-438A, R-507A, RS-44 (2003 composition) January 1, 2023 Household refrigerators and freezers (New) FOR12A, FOR12B, HFC-134a, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), RS-44 (2003 formulation), SP34E, THR-03 January 1, 2022 Household refrigerators and freezers - Compact (New) FOR12A, FOR12B, HFC-134a, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), RS-44 (2003 formulation), SP34E, THR-03 January 1, 2021 Household refrigerators and freezers - Built-in appliances (New) FOR12A, FOR12B, HFC-134a, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), RS-44 (2003 formulation), SP34E, THR-03 January 1, 2023 Supermarket systems (Retrofit) R-404A, R-407B, R-421B, R-422A, R-422C, R-422D, R-428A, R-434A, R-507A January 1, 2020 Supermarket systems (New) HFC-227ea, R-404A, R-407B, R-421B, R-422A, R-422C, R-422D, R-428A, R-434A, R-507A January 1, 2020 Remote condensing units, except for automatic commercial ice machines (Retrofit) R-404A, R-407B, R-421B, R-422A, R-422C, R-422D, R-428A, R-434A, R-507A January 1, 2020 Remote condensing units, except for automatic commercial ice machines (New) HFC-227ea, R-404A, R-407B, R-421B, R-422A, R-422C, R-422D, R-428A, R-434A, R-507A January 1, 2020 Remote condensing units, automatic commercial ice machines (New and retrofit) R-402A, R-402B, R-404A, R-407B, R-408A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-428A, R-434A, R-438A, R-507A, R-125/290/134a/600a (55.0/1.0/42.5/1.5), RB-276, RS-24 (2002 formulation), RS-44 (2003 formulation), GHG-X5 January 1, 2027 Stand-alone units, except for automatic commercial ice machines (Retrofit) R-404A, R-507A January 1, 2020 Stand-alone medium-temperature units (New) FOR12A, FOR12B, HFC-134a, HFC-227ea, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407A, R-407B, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), RS-44 (2003 formulation), SP34E, THR-03 January 1, 2020 Stand-alone low-temperature units (New) HFC-227ea, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407A, R-407B, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-44 (2003 formulation) January 1, 2020 Stand-alone units, automatic commercial ice machines; Batch type with a harvest rate less than or equal to 1,000 pounds of ice per 24 hours; and Continuous type with a harvest rate less than or equal to 1,200 pounds of ice per 24 hours (New and retrofit) Refrigerants with a GWP greater than 150 January 1, 2026 Stand-alone units, automatic commercial ice machines; Batch type with a harvest rate greater than 1,000 pounds of ice per 24 hours; and Continuous type with a harvest rate greater than 1,200 pounds of ice per 24 hours (New and retrofit) R-402A, R-402B, R-404A, R-407A, R-407B, R-407C, R-407F, R-408A, R-410A, R-410B, R-411A, R-411B, R-417A, R-417C, R-420A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-426A, R-428A, R-434A, R-437A, R-438A, R-442A, R-507, R-507A, HFC-134a, R-125/290/134a/600a (55.0/1.0/42.5/1.5), RB-279, RS-24 (2002 formulation), RS-44 (2003 formulation), GHG-X5, G2018c, Freeze 12 January 1, 2027 Refrigerated food processing and dispensing equipment (New) HFC-227ea, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407A, R-407B, R-407C, R-407F, R-410A, R-410B, R-417A, R-421A, R-421B, R-422A, R-422B, R-422C, R-422D, R-424A, R-428A, R-434A, R-437A, R-438A, R-507A, RS-44 (2003 formulation) January 1, 2021 Vending machines (Retrofit) R-404A, R-507A January 1, 2022 Vending machines (New) FOR12A, FOR12B, HFC-134a, KDD6, R-125/290/134a/600a (55.0/1.0/42.5/1.5), R-404A, R-407C, R-410A, R-410B, R-417A, R-421A, R-422B, R-422C, R-422D, R-426A, R-437A, R-438A, R-507A, RS-24 (2002 formulation), SP34E January 1, 2022 End-Use Category: Foams End-Use Prohibited Substances Effective Date Rigid polyurethane and polyisocyanurate laminated boardstock HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof January 1, 2020 Flexible polyurethane HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof January 1, 2020 Integral skin polyurethane HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Polystyrene extruded sheet HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Phenolic insulation board and bunstock HFC-143a, HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof January 1, 2020 Rigid polyurethane slabstock and other HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Rigid polyurethane appliance foam HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Rigid polyurethane commercial refrigeration and sandwich panels HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Polyolefin HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Rigid polyurethane marine flotation foam HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Polystyrene extruded boardstock and billet (XPS) HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel B, Formacel Z-6 January 1, 2021 Rigid polyurethane high-pressure two-component spray foam HFC-134a, HFC-245fa, and blends thereof; blends of HFC-365mfc with at least 4 percent HFC-245fa, and commercial blends of HFC-365mfc with 7 to 13 percent HFC-227ea and the remainder HFC-365mfc; Formacel TI January 1, 2020 Rigid polyurethane low-pressure two-component spray foam HFC-134a, HFC-245fa, and blends thereof; blends of HFC-365mfc with at least 4 percent HFC-245fa, and commercial blends of HFC-365mfc with 7 to 13 percent HFC-227ea and the remainder HFC-365mfc; Formacel TI January 1, 2021 Rigid polyurethane one-component foam sealants HFC-134a, HFC-245fa, and blends thereof; blends of HFC-365mfc with at least 4 percent HFC-245fa, and commercial blends of HFC-365mfc with 7 to 13 percent HFC-227ea and the remainder HFC-365mfc; Formacel TI January 1, 2020 End-Use Category: Foams End-Use Prohibited Substances Effective Date Rigid polyurethane and polyisocyanurate laminated boardstock HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof January 1, 2020 Flexible polyurethane HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof January 1, 2020 Integral skin polyurethane HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Polystyrene extruded sheet HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Phenolic insulation board and bunstock HFC-143a, HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof January 1, 2020 Rigid polyurethane slabstock and other HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Rigid polyurethane appliance foam HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Rigid polyurethane commercial refrigeration and sandwich panels HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Polyolefin HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Rigid polyurethane marine flotation foam HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel Z-6 January 1, 2020 Polystyrene extruded boardstock and billet (XPS) HFC-134a, HFC-245fa, HFC-365mfc, and blends thereof; Formacel TI, Formacel B, Formacel Z-6 January 1, 2021 Rigid polyurethane high-pressure two-component spray foam HFC-134a, HFC-245fa, and blends thereof; blends of HFC-365mfc with at least 4 percent HFC-245fa, and commercial blends of HFC-365mfc with 7 to 13 percent HFC-227ea and the remainder HFC-365mfc; Formacel TI January 1, 2020 Rigid polyurethane low-pressure two-component spray foam HFC-134a, HFC-245fa, and blends thereof; blends of HFC-365mfc with at least 4 percent HFC-245fa, and commercial blends of HFC-365mfc with 7 to 13 percent HFC-227ea and the remainder HFC-365mfc; Formacel TI January 1, 2021 Rigid polyurethane one-component foam sealants HFC-134a, HFC-245fa, and blends thereof; blends of HFC-365mfc with at least 4 percent HFC-245fa, and commercial blends of HFC-365mfc with 7 to 13 percent HFC-227ea and the remainder HFC-365mfc; Formacel TI January 1, 2020 (2) Table 2 in this section lists prohibited substances in new or retrofit refrigeration equipment, as defined in WAC 173-443-030 , with a full charge of more than 50 pounds and the effective date of the prohibition, unless an exemption is provided for in WAC 173-443-050 . TABLE 2. Prohibited Substances for New or Retrofit Refrigeration Equipment End-Use Criteria Prohibited Substances Effective Date Commercial refrigeration: Retail food refrigeration including chillers (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2025 Commercial refrigeration: Retail food refrigeration including chillers (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2029 Commercial refrigeration: Cold storage warehouses (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2025 Commercial refrigeration: Cold storage warehouses (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2029 Industrial process refrigeration excluding chillers (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2025 Industrial process refrigeration excluding chillers (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2029 Chillers used for industrial process refrigeration (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 750 January 1, 2025 Chillers used for industrial process refrigeration (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 750 January 1, 2029 Ice rinks including chillers (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2024 Ice rinks including chillers (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 750 January 1, 2024 End-Use Criteria Prohibited Substances Effective Date Commercial refrigeration: Retail food refrigeration including chillers (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2025 Commercial refrigeration: Retail food refrigeration including chillers (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2029 Commercial refrigeration: Cold storage warehouses (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2025 Commercial refrigeration: Cold storage warehouses (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2029 Industrial process refrigeration excluding chillers (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2025 Industrial process refrigeration excluding chillers (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2029 Chillers used for industrial process refrigeration (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 750 January 1, 2025 Chillers used for industrial process refrigeration (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 750 January 1, 2029 Ice rinks including chillers (New) New refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 150 January 1, 2024 Ice rinks including chillers (Retrofit) Retrofit refrigeration equipment with a full charge of more than 50 pounds of refrigerant Refrigerants with a GWP greater than 750 January 1, 2024 (3) Table 3 in this section lists prohibited substances in new or retrofit air conditioning equipment, as defined in WAC 173-443-030 , and the effective date of the prohibition, unless an exemption is provided for in WAC 173-443-050 . TABLE 3. Prohibited Substances for New or Retrofit Air Conditioning Equipment End-Use Criteria Prohibited Substances Effective Date Room air conditioners and residential dehumidifiers (New) New air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2024 Room air conditioners and residential dehumidifiers (Retrofit) Retrofit air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2029 Other types of air conditioning equipment used in residential and nonresidential applications (New) New air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2026, if UL 60335-2-40 Edition 4 is adopted by the Washington state building code council by December 31, 2023; otherwise 24 months following adoption of the updated code Other types of air conditioning equipment used in residential and nonresidential applications (Retrofit) Retrofit air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2029 Variable refrigerant flow (VRF) or volume system (New) New air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2026 Variable refrigerant flow (VRF) or volume system (Retrofit) Retrofit air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2029 End-Use Criteria Prohibited Substances Effective Date Room air conditioners and residential dehumidifiers (New) New air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2024 Room air conditioners and residential dehumidifiers (Retrofit) Retrofit air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2029 Other types of air conditioning equipment used in residential and nonresidential applications (New) New air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2026, if UL 60335-2-40 Edition 4 is adopted by the Washington state building code council by December 31, 2023; otherwise 24 months following adoption of the updated code Other types of air conditioning equipment used in residential and nonresidential applications (Retrofit) Retrofit air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2029 Variable refrigerant flow (VRF) or volume system (New) New air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2026 Variable refrigerant flow (VRF) or volume system (Retrofit) Retrofit air conditioning equipment Refrigerants with a GWP greater than 750 January 1, 2029 (4) Table 4 in this section lists prohibited substances in small containers of refrigerant and nonessential consumer products, as the terms are defined in WAC 173-443-030 , and the effective date of the prohibition. TABLE 4. Prohibited Substances for Small Containers of Refrigerant and Nonessential Consumer Products End-Use Prohibited Substances Effective Date Small containers of refrigerant Substitutes with a GWP greater than 150 July 25, 2021 Nonessential consumer products Substitutes with a GWP greater than 150 July 25, 2021 End-Use Prohibited Substances Effective Date Small containers of refrigerant Substitutes with a GWP greater than 150 July 25, 2021 Nonessential consumer products Substitutes with a GWP greater than 150 July 25, 2021