Technology Transitions Program
About the Technology Transitions Program
EPA’s Technology Transitions Program limits the use of climate-damaging hydrofluorocarbons (HFCs) in specific technology sectors and subsectors, such as foam, aerosols, and refrigeration, air conditioning, and heat pumps. HFCs are greenhouse gases with global warming potentials (GWPs) that can be hundreds to thousands of times more potent than carbon dioxide. EPA’s Technology Transitions Program, under the authority of the American Innovation and Manufacturing (AIM) Act, facilitates transitions to next-generation technologies by restricting the use of HFCs in specific sectors and subsectors. HFC technology-based restrictions are enacted through a rulemaking process. The rulemaking process can be initiated by EPA or in response to petitions from outside entities.
Overview of Regulatory Requirements
Beginning January 1, 2025, manufacturers and importers of certain products and equipment that use HFCs must comply with restrictions on the use of certain HFCs or blends containing HFCs. Under this program, manufacture, distribution, sale, installation, import, and export of products containing restricted HFCs are prohibited. Compliance deadlines and permissible substitutes vary based on sector and subsector.
| Sectors with restrictions on the use of HFCs | ||
|---|---|---|
| Aerosols | Foams | Refrigeration, Air Conditioning, and Heat Pumps |
Find out more about HFC use restrictions in certain products and systems in the final rulemaking.
HFC Restrictions by Sector
Technology Transitions HFC Restrictions by Sector – These tables provide a summary of the specific restrictions on use of HFCs finalized under this rule by sector, subsector, and compliance date. A printable version of HFC Use Restrictions is included in the Final Rule Fact Sheet.
GWP Reference Table
Technology Transitions GWP Reference Table – This table lists the GWP values for HFCs, HFC blends, and other substitutes.
Frequent Questions
For answers to frequent questions related to the HFC Technology Transitions Program, and other rules and programs under the AIM Act visit the Frequent Questions webpage.