The mission statement "Zero Waste" is an elementary component of the Berlin coalition agreement (2016-2021). A central measure to achieve this is the reuse of products - however, hardly any products have been reused so far. The Re-Use Berlin 2019 project, like its predecessors "Investigation into the Re-Use of Second-Hand Goods" (2017) and "Zero Waste Berlin" (2018), therefore aims to strengthen the reuse of second-hand goods in Berlin. To this end, comprehensive operational and conceptual measures are planned that tie in with the completed projects.