This report is an outcome of the expert seminar 'Global Chemicals and Wastes Governance Beyond 2020' held on 16-17 January 2017 in Helsinki, Finland. The seminar explored forms and functions for effective global governance of chemicals and wastes beyond 2020. The conclusion was that promising forms for the Post-2020 regime could consist of voluntary approaches or mixed instruments, with both legally-binding and voluntary elements. One specific model for this kind of approach that was explored is the 'National Action Plan' mechanism. Many of the functional elements highlighted include the involvement of all key stakeholders and sectors, the need for an effective science-policy interface, and use of a lifecycle approach. The seminar brought together 50 policy-makers and international experts in the field of international environmental law and global chemicals and wastes governance.