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Appendix K to Subpart G of Part 82 - Substitutes Subject to Use Restrictions and Unacceptable Substitutes Listed in the July 22, 2002, Final Rule Effective August 21, 2002

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

Foam Blowing - Unacceptable Substitutes
End-use Substitute Decision Comments
Replacements for HCFC-141b in the following rigid polyurethane/polyisocyanurate applications:
- Boardstock
- Appliance
- Spray 		HCFC-22, HCFC-142b and blends thereof Unacceptable Closed cell foam products and products containing closed cell foams manufactured with these substitutes on or before December 1, 2017 may be used after that date Alternatives exist with lower or zero-ODP.
All foam end-uses HCFC-124 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.

[81 FR 86883, Dec. 1, 2016]

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