Building on a global survey of 80+ cities, regions and basins, the report entitled “The Blue Economy in Cities and Regions – A Territorial Approach”, highlights the costs and benefits of the blue economy at subnational level, shedding light on the link between the blue economy and water security. This analysis provides an overview of the multi-level governance of the blue economy and related gaps. It calls on cities and regions to develop resilient, inclusive, sustainable and circular (RISC-proof) blue economies by establishing the right governance conditions related to policy making, policy coherence and policy implementation. The report concludes with a RISC Assessment Framework that offers a self-evaluation tool for subnational governments. AIVP, among other organizations, has supported this work, being active in the disclosure of the survey and providing a port-city perspective.