This deliverable builds on the comparative case studies of PHUSICOS's D5.1 by identifying institutional, legal, regulatory, social and economic opportunities, as well as barriers to NBS implementation. Governance opportunities and policy bottlenecks are scoped out at the EU, national and regional levels (e.g., EU directives and frameworks, as well as policy and financial mechanisms) that can help promote and enhance the adoption of NBS.

Results highlight critical governance factors that are currently facilitating or limiting NBS implementation and mainstreaming during their design, planning, implementation, monitoring and maintenance processes.