All flammable refrigerants, including OZ-12 (Hydrocarbon Blend A), HC-12a (Hydrocarbon Blend B), and Duracool 12a

CFC-12

Motor vehicle air conditioning, retrofit and new

Lack of adequate assessment that characterizes incremental flammability risk

OZ-12 (Hydrocarbon Blend A), HC-12a (Hydrocarbon Blend B), and Duracool 12a

CFC-12

All end-uses other than industrial process refrigeration, retrofit and new

Lack of adequate assessment that characterizes incremental flammability risk

R-141b

CFC-11

centrifugal chillers, new

High ODP; other substitutes with lower overall risk have been identified

R-176
(R-176 contains CFC-12, HCFC-22, and HCFC-142b. It is a different product from RB-276, typically sold under the name "Free Zone.")

CFC-12

All end-uses, retrofit and new

Contains CFC-12

R-403B

R-502

All end-uses, retrofit and new

Contains a perfluorocarbon that exhibits extremely high GWP and very long lifetime

R-405A

CFC-12

All end-uses, retrofit and new

Contains a perfluorocarbon that exhibits extremely high GWP and very long lifetime

MT-31

all CFCs and HCFCs

All end-uses, retrofit and new

Toxicity of a constituent

Hexafluropropylene (HFP) and blends containing it

all CFCs and HCFCs

All end-uses, retrofit and new

HFP is toxic

NARM-22

HCFC-22

All end-uses, retrofit and new

Contains HCFC-22

Self-Chilling Cans using HFC-134a or HFC-152a

CFC-12, HCFC-22, R-502

Household Refrigeration, Transport Refrigeration, Vending Machines, Cold Storage Warehouses and Retail Food Refrigeration; retrofit and new

Unacceptably high greenhouse gas emissions from direct release of refrigerant to the atmosphere