This report examines the current use of hydrofluoroolefins (HFOs), also called unsaturated hydrofluorocarbons (uHFC) in the Nordic countries and maps the existing systems to secure the safe recovery, collection, and treatment of HFOs that are no longer in use. Furthermore, this study explores and proposes measures and options for effective systems for collecting and treating HFOs in the Nordic countries when they are no longer needed. In addition to the Nordic countries of Denmark, the Faroe Islands, Finland, Iceland, Norway and Sweden, Germany and Switzerland were also included to provide a beyond Nordic perspective.