On 20th and 27 January 2021, the Nordic Ozone and Fluorinated Greenhouse Gas Group under the Nordic Council of Ministers arranged a workshop to address the illegal trade of hydrofluorocarbons (HFCs) in the Nordic and Baltic Countries. The overall aim of the workshop was to support the curbing of illegal trade of HFCs by strengthening cooperation between environmental and customs authorities within and between these countries. Environmental regulators, inspectorates and customs authorities participated. This Nordic Working Paper summarizes the result from the workshop including suggestions for a way forward.