This document summarizes the proceedings of the fourth meeting of the Task Force on Public Participation in Decision-making under the Aarhus Convention. The meeting was organized jointly with ANCCLI and the European Commission's DG-ENER. It covered key outcomes of roundtable discussions on various nuclear-related topics, challenges to implementing public participation in nuclear decision-making, strategies to enhance public information and participation at the national level, and priorities for future work. Representatives from governments, intergovernmental organizations, the EU, national authorities, NGOs and the private sector attended.