40 C.F.R. § 82 app M to Subpart G of Part 82
Current through September 30, 2024
Foam Blowing-Unacceptable Substitutes
| End-use | Substitute | Decision | Comments |
| All foam end-uses: -rigid polyurethane and polyisocyanurate laminated boardstock -rigid polyurethane appliance -rigid polyurethane spray and commercial refrigeration, and sandwich panels | HCFC-141b | Unacceptable Closed cell foam products and products containing closed cell foams manufactured with this substitute on or before December 1, 2017 may be used after that date | Alternatives exist with lower or zero-ODP. |
| -rigid polyurethane slabstock and other foams -polystyrene extruded insulation boardstock and billet -phenolic insulation board and bunstock -flexible polyurethane -polystyrene extruded sheet -Except for:1 -space vehicle -nuclear -defense -research and development for foreign customers |
1 Exemptions for specific applications are identified in the list of acceptable substitutes, which is available on the SNAP Web site at: https://www.epa.gov/snap/foam-blowing-agents.
40 C.F.R. 82 app M to Subpart G of Part 82