StacksVerified U.S. federal law reference

40 CFR Part 82, Appendix G — Substitutes Subject to Use Restrictions and Unacceptable Substitutes Listed in the March 3, 1999, Final rule, Effective April 2, 1999

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
End-useSubstituteDecisionComments
CFC-12, R-502, and HCFC-22 Household Refrigeration, Transport Refrigeration, Vending Machines, Cold Storage Warehouses, and Retail Food Refrigeration, Retrofit and NewSelf-Chilling Cans-Using HFC-134a or HFC-152aUnacceptableUnacceptably high greenhouse gas emissions from direct release of refrigerant to the atmosphere.

[64 FR 10378, Mar. 3, 1999]