Experts in the monitoring and evaluation of NBS from 17 European Commission-funded projects and related programmes have collaboratively developed a holistic framework for evaluation of the multiple benefits and co-benefits of NBS. The resultant publications, Evaluating the Impact of Nature-Based Solutions: A Handbook for Practitioners and the associated Appendix of Methods and Summary for Policy Makers provide comprehensive guidance for the development and implementation of NBS monitoring and evaluation plans, including a suite of NBS performance and impact indicators across 12 societal challenge areas and brief methods of assessment for each. This session provides an overview of the NBS impact assessment framework and its use in evaluating NBS actions.