Abstract Summary
The transition towards a circular city and society is picking up, but not fast enough to reach the ambitious 2030 goal: 50% reduction of primary abiotic materials. Recently, national advisory boards such as the Environmental Assessment Agency (PBL) and Reflection Group Circular Economy therefore have recently urged in their recommendations that more pressing policy interventions are required. This includes regulatory levies, standards, taxes and setting conditions for permits. A challenge and barrier in the application is that currently, regional and local governments don't have sufficient knowledge on how to apply these legal and fiscal instruments. Therefore, the City of Amsterdam is developing a tool that helps circular policy makers navigate the complexity of the legal system in order to find the right 'buttons to turn'. The tool strives at vertical integration of authority levels and horizontal integration of legislative areas (public, private, fiscal), so that measures can be combined, leading to more synergy in supply chains. In order to develop a tool that meets the needs of its users and encourage cross-pollination of divergent fields of knowledge, a multidisciplinary team of legal experts, UX/user research experts, circular construction professionals and experts in the process of public policy development has been set up.