The Significant New Alternatives Policy (SNAP) Program is EPA’s regulatory framework for evaluating and approving substitutes for ozone-depleting substances used in refrigeration, air conditioning, and foam-blowing applications. Established under Section 612 of the Clean Air Act, SNAP reviews safety, environmental impact, and feasibility of replacement chemicals. The program facilitates phase-out of CFCs, HCFCs, and high-GWP HFCs.
Approval Process
Manufacturers submit detailed technical data for new refrigerants or blends. EPA evaluates ozone depletion potential (ODP), global warming potential (GWP), toxicity, flammability (ASHRAE 15 classification), and marketability. Approved alternatives receive formal listing on EPA SNAP tables, enabling manufacturers to market and install approved products.
Current Phase-Down
SNAP currently prioritizes HFO (hydrofluoroolefin) refrigerants with GWP 150 or lower for new equipment. The program aligns with the 2016 Kigali Amendment, requiring 80 percent reduction in HFC production and consumption by 2047. Regular updates to SNAP guidance ensure compliance with evolving climate standards.