This proceedings publication comprises key outcomes and proposed recommendations from the conference held to discuss the achievements, challenges, and lessons learned in the decommissioning of nuclear facilities. Important information was shared at the conference on current priority needs, strategies and approaches to support the safe, secure, and cost-effective implementation of decommissioning programmes. In addition, this publication features the President’s and Vice-President’s reports, with insights drawn from speaker presentations, panel discussions, side events and Q&A sessions with contributions from participants.