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Appendix M to Subpart G of Part 82 - Unacceptable Substitutes Listed in the September 30, 2004 Final Rule, Effective November 29, 2004

RegSenseCFR RegulationsEnvironmental Protection Agency (EPA)EnvironmentalAir QualityFocus AreaUSAOzone Layer ProtectionEnglishAir ProgramsCFR Appendix

Foam Blowing - Unacceptable Substitutes
End-use Substitute Decision Comments
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.
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

[81 FR 86883, Dec. 1, 2016]

['Air Programs']
['Ozone Layer Protection']
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