US AIM Act sector-specific refrigerant GWP limits and compliance dates (40 CFR 84.54)
Federal sector-specific maximum GWP values for refrigerants and HFC-containing products under the AIM Act Technology Transitions rule (40 CFR 84.54). Each record is one sector/subsector with the GWP ceiling, the effective date for manufacture/import restrictions, the effective date for installation restrictions (often different), equipment size or temperature conditions, and any exemptions. Answers 'what is the maximum GWP refrigerant I can use in a new supermarket system?', 'when does the R-410A ban take effect for residential AC?', 'is there an exemption for semiconductor manufacturing chillers?', and 'what changed in the May 2026 reconsideration rule?' — questions where the answer depends on the sector, the date, the equipment size, and the temperature range, and where assistants typically give the residential AC answer (700 GWP) regardless of the sector.
Records71
Sources1
Verified2026-08-06
Review by2027-02-02
LicenceUS federal regulation, public domain. 40 CFR Part 84 is government work published at ecfr.gov.
The data
| Sector/subsector | Restriction type | Maximum GWP | Effective date | CFR paragraph | Conditions | Exemptions |
|---|---|---|---|---|---|---|
| self-contained residential and light commercial air conditioning and heat pump products | manufacture/import | 700 | January 1, 2025 | § 84.54(a)(1) | ||
| chillers for comfort cooling | manufacture/import | 700 | January 1, 2025 | § 84.54(a)(10)(i) | when a stand-alone product | |
| chillers for ice rinks | manufacture/import | 700 | January 1, 2025 | § 84.54(a)(10)(ii) | when a stand-alone product | |
| chillers for industrial process refrigeration | manufacture/import | 700 | January 1, 2026 | § 84.54(a)(10)(iii) | where the temperature of the fluid exiting the chiller is greater than −22 °F (−30 °C) | |
| chillers for industrial process refrigeration | manufacture/import | 700 | January 1, 2028 | § 84.54(a)(10)(iv) | where the temperature of the fluid exiting the chiller is greater than or equal to −50 °C (−58 °F) and less than or equal to −30 °C (−22 °F) | |
| Chillers | manufacture/import | January 1, 2030 | § 84.54(a)(10)(v) | with a refrigerant charge capacity of 100 pounds or less that are used in the manufacture of semiconductors | ||
| self-contained products in data center, information technology equipment facility, and computer room cooling | manufacture/import | 700 | January 1, 2027 | § 84.54(a)(11) | ||
| Industrial process refrigeration products, other than chillers | manufacture/import | 150 | January 1, 2026 | § 84.54(a)(12)(i) | with a refrigerant charge capacity of 200 pounds or greater and with the refrigerant temperature entering the evaporator higher than −30 °C (−22 °F) | |
| Industrial process refrigeration products, other than chillers | manufacture/import | 300 | January 1, 2026 | § 84.54(a)(12)(ii) | with a refrigerant charge capacity less than 200 pounds and with the refrigerant temperature entering the evaporator higher than −30 °C (−22 °F) | |
| Industrial process refrigeration products, other than chillers | manufacture/import | 700 | January 1, 2028 | § 84.54(a)(12)(iii) | where the temperature of the refrigerant entering the evaporator is greater than or equal to −50 °C (−58 °F) and is less than or equal to −30 °C (−22 °F) | |
| Industrial process refrigeration products, other than chillers | manufacture/import | January 1, 2030 | § 84.54(a)(12)(iv) | with a refrigerant charge capacity of 100 pounds or less that are used in the manufacture of semiconductors | ||
| Refrigerated centrifuges and laboratory shaker tables | manufacture/import | January 1, 2028 | § 84.54(a)(12)(v) | |||
| Motor vehicle air-conditioning | manufacture/import | 150 | October 24, 2024 | § 84.54(a)(13)(i) | for Model Year 2025 and subsequent model year light-duty passenger cars and trucks (vehicles with a gross vehicle weight rating less than 8,500 lb) | |
| Motor vehicle air-conditioning | manufacture/import | 150 | Model Year 2028 | § 84.54(a)(13)(ii) | medium-duty passenger vehicles, heavy-duty pick-up trucks, and complete heavy-duty vans, as defined by the Federal Highway Administration | |
| Motor vehicle air-conditioning | manufacture/import | 150 | January 1, 2028 | § 84.54(a)(13)(iii) | certain nonroad vehicles (agricultural tractors greater than 40 horsepower; self-propelled agricultural machinery; compact equipment; construction, forestry, and mining equipment; and commercial utility vehicles) | |
| Rigid polyurethane appliance foam, commercial refrigeration foam, laminated boardstock, marine flotation foam, sandwich panels, and slabstock | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(14)(i) | foam products | |
| Flexible polyurethane | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(14)(ii) | foam products | |
| Integral skin polyurethane | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(14)(iii) | foam products | |
| Polystyrene—extruded boardstock, billet, and extruded sheet | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(14)(iv) | foam products | |
| Phenolic insulation board and bunstock | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(14)(v) | foam products | |
| Polyisocyanurate laminated boardstock | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(14)(vi) | foam products | |
| Polyolefin | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(14)(vii) | foam products | |
| Rigid polyurethane spray foam | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(14)(viii) | foam products | |
| foam products | manufacture/import | January 1, 2026 | § 84.54(a)(15) | for use in space and military applications | except spray and pour foams that are for use in space vehicles | |
| Aerosol products | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(16)(i) | except products that use HFC-43-10mee (1,1,1,2,3,4,4,5,5,5-pentafluoropentane) or HFC-245fa (1,1,1,3,3-pentafluoropropane) as an aerosol solvent | |
| aerosol products | manufacture/import | 150 | January 1, 2028 | § 84.54(a)(16)(ii) | except defense sprays | |
| residential dehumidifiers | manufacture/import | 700 | January 1, 2025 | § 84.54(a)(2) | ||
| household refrigerators and freezers | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(3) | ||
| retail food refrigeration—stand-alone units | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(4) | ||
| vending machines | manufacture/import | 150 | January 1, 2025 | § 84.54(a)(5) | ||
| refrigerated transport—intermodal containers | manufacture/import | 700 | July 27, 2026 | § 84.54(a)(6) | with a box temperature of −35 °C (−31 °F) or higher | |
| self-contained products in refrigerated transport—road and refrigerated transport—marine subsectors | manufacture/import | named list | January 1, 2025 | § 84.54(a)(7) | 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 (55/1/42.5/1.5), RS-44 (2003 formulation) or GHG-X5 | |
| Self-contained automatic commercial ice machines | manufacture/import | 150 | January 1, 2026 | § 84.54(a)(8)(i)(A) | with a harvest rate less than or equal to 1,000 pounds of ice per 24 hours | |
| Self-contained automatic commercial ice machines | manufacture/import | 150 | January 1, 2026 | § 84.54(a)(8)(i)(B) | with a harvest rate less than or equal to 1,200 pounds of ice per 24 hours | |
| batch type ice maker products | manufacture/import | named list | January 1, 2027 | § 84.54(a)(8)(ii) | with a harvest rate greater than 1,000 pounds of ice per 24 hours | |
| continuous type ice machine products | manufacture/import | named list | January 1, 2027 | § 84.54(a)(8)(ii) | with a harvest rate greater than 1,200 pounds of ice per 24 hours | |
| Self-contained refrigerated food processing and dispensing products | manufacture/import | 150 | January 1, 2027 | § 84.54(a)(9)(i) | with refrigerant charge sizes less than or equal to 500 g | |
| Self-contained refrigerated food processing and dispensing products | manufacture/import | named list | January 1, 2027 | § 84.54(a)(9)(ii) | with refrigerant charge sizes greater than 500 g | |
| refrigerated food processing and dispensing products | manufacture/import | named list | January 1, 2028 | § 84.54(a)(9)(iii) | within the scope of UL 621 | |
| any product that uses a regulated substance as listed in paragraph (a) | sale/distribution | three years after the dates listed for each subsector | § 84.54(b) | |||
| residential or light commercial air-conditioning or heat pump systems | installation | 700 | January 1, 2025 | § 84.54(c)(1) | may continue to be installed where all specified components of that system are manufactured or imported prior to January 1, 2025 | except for variable refrigerant flow air-conditioning and heat pump systems |
| Industrial process refrigeration systems, other than chiller systems | installation | 150 | January 1, 2026 | § 84.54(c)(10)(i) | systems with a refrigerant charge capacity of 200 pounds or greater and with the refrigerant temperature entering the evaporator higher than −30 °C (−22 °F), that are not the high temperature side of a cascade system | |
| Industrial process refrigeration systems, other than chiller systems | installation | 300 | January 1, 2026 | § 84.54(c)(10)(ii) | systems with a refrigerant charge capacity less than 200 pounds and with the refrigerant temperature entering the evaporator higher than −30 °C (−22 °F) | |
| Industrial process refrigeration systems, other than chiller systems | installation | 300 | January 1, 2026 | § 84.54(c)(10)(iii) | the high temperature side of cascade systems with the refrigerant temperature entering the evaporator higher than −30 °C (−22 °F) | |
| Industrial process refrigeration systems, other than chiller systems | installation | 700 | January 1, 2028 | § 84.54(c)(10)(iv) | where the temperature of the refrigerant entering the evaporator is greater than or equal to −50 °C (−58 °F) and is less than or equal to −30 °C (−22 °F) | |
| Systems used in the manufacture of semiconductors | installation | January 1, 2030 | § 84.54(c)(10)(v) | with a charge size of 100 pounds or less | ||
| remote condensing units in retail food refrigeration systems | installation | 1,400 | July 27, 2026 | § 84.54(c)(11)(i) | ||
| remote condensing units in retail food refrigeration systems | installation | 150 | January 1, 2032 | § 84.54(c)(11)(ii)(A) | Systems with a refrigerant charge capacity of 200 pounds or greater, that are not the high temperature side of a cascade system | |
| remote condensing units in retail food refrigeration systems | installation | 300 | January 1, 2032 | § 84.54(c)(11)(ii)(B) | Systems with a refrigerant charge capacity less than 200 pounds | |
| remote condensing units in retail food refrigeration systems | installation | 300 | January 1, 2032 | § 84.54(c)(11)(ii)(C) | Cascade refrigerant systems using a regulated substance, or a blend containing a regulated substance, on the high temperature side of the system | |
| supermarket systems | installation | 1,400 | January 1, 2027 | § 84.54(c)(12)(i) | ||
| supermarket systems | installation | 150 | January 1, 2032 | § 84.54(c)(12)(ii)(A) | Systems with a refrigerant charge capacity of 200 pounds or greater, that are not the high temperature side of a cascade system | |
| supermarket systems | installation | 300 | January 1, 2032 | § 84.54(c)(12)(ii)(B) | Systems with a refrigerant charge capacity less than 200 pounds | |
| supermarket systems | installation | 300 | January 1, 2032 | § 84.54(c)(12)(ii)(C) | Cascade refrigerant systems using a regulated substance, or a blend containing a regulated substance, on the high temperature side of the system | |
| data center, information technology equipment facility, and computer room cooling systems | installation | 700 | January 1, 2027 | § 84.54(c)(13) | ||
| automatic commercial ice machines with a remote condenser | installation | named list | January 1, 2027 | § 84.54(c)(14) | 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 (55/1/42.5/1.5), RS-44 (2003 formulation), or GHG-X5 | |
| refrigerated food processing and dispensing equipment with a remote condenser | installation | named list | January 1, 2027 | § 84.54(c)(15) | R-402A, R-402B, R-404A, R-407A, R-407B, R-407C, R-407F, R-407H, 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-427A, R-428A, R-434A, R-437A, R-438A, R-507A, HFC-134a, HFC-227ea, R-125/290/134a/600a (55/1/42.5/1.5), RB-276, RS-24 (2002 formulation), RS-44 (2003 formulation), GHG-X5, or Freeze 12 | |
| variable refrigerant flow systems for use as residential or light commercial air-conditioning or heat pumps | installation | 700 | January 1, 2026 | § 84.54(c)(2) | may be installed prior to January 1, 2027, where all specified components of that system are manufactured or imported prior to January 1, 2026 | may be installed prior to January 1, 2028, when an approved building permit issued prior to October 5, 2023, specifies the use of a restricted regulated substance |
| chillers for comfort cooling | installation | 700 | January 1, 2025 | § 84.54(c)(3) | ||
| ice rinks | installation | 700 | January 1, 2025 | § 84.54(c)(4) | ||
| chillers for industrial process refrigeration | installation | 700 | January 1, 2026 | § 84.54(c)(5)(i) | where the temperature of the fluid exiting the chiller is greater than -30 °C (−22 °F) | |
| Chillers | installation | January 1, 2030 | § 84.54(c)(5)(ii) | with a refrigerant charge capacity of 100 pounds or less that are used in the manufacture of semiconductors | ||
| chillers for industrial process refrigeration | installation | 700 | January 1, 2028 | § 84.54(c)(6)(i) | where the temperature of the fluid exiting the chiller is greater than or equal to −50 °C (−58 °F) and less than or equal to −30 °C (−22 °F) | |
| Chillers | installation | January 1, 2030 | § 84.54(c)(6)(ii) | with a refrigerant charge capacity of 100 pounds or less that are used in the manufacture of semiconductors | ||
| refrigerated transport—intermodal containers | installation | 700 | July 27, 2026 | § 84.54(c)(7) | with a box temperature of −35 °C (−31 °F) or higher | |
| refrigerated transport—road or refrigerated transport—marine systems | installation | named list | January 1, 2025 | § 84.54(c)(8) | 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 (55/1/42.5/1.5), RS-44 (2003 formulation) or GHG-X5 | |
| cold storage warehouse systems | installation | 700 | July 27, 2026 | § 84.54(c)(9)(i) | ||
| cold storage warehouse systems | installation | 150 | January 1, 2032 | § 84.54(c)(9)(ii)(A) | Systems with a refrigerant charge capacity of 200 pounds or greater, that are not the high temperature side of a cascade system | |
| cold storage warehouse systems | installation | 300 | January 1, 2032 | § 84.54(c)(9)(ii)(B) | Systems with a refrigerant charge capacity less than 200 pounds | |
| cold storage warehouse systems | installation | 300 | January 1, 2032 | § 84.54(c)(9)(ii)(C) | Cascade refrigerant systems using a regulated substance, or a blend containing a regulated substance, on the high temperature side of the system | |
| industrial process refrigeration systems with a January 1, 2026, compliance date, retail food—supermarket, cold storage warehouse, and ice rink subsectors | installation | extended one year beyond the specified compliance date | § 84.54(d) | when an approved building permit issued prior to October 5, 2023, specifies the use of a restricted regulated substance |
Where this came from
Every record above links the page it was taken from and quotes the sentence that states it. These are the 1 source this dataset was assembled from.
- ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-84
Machine-readable
- data.jsonThe whole dataset — every record with its source URL and source quote.
- Open Knowledge Format bundleOne JSON object per line — every record's frontmatter and quoted span exactly as it is held here, in one fetch.
- How this is made and checkedWhat "verified against source" does and does not mean.