The purpose of the event is to discuss achievements, challenges and lessons learned in the decommissioning of nuclear facilities, highlighting current priority needs and sharing information on strategies and approaches that enhance safe, secure and cost-effective implementation of programmes. The event will aim to raise awareness of the importance of addressing decommissioning as part of a sustainable future, supporting optimal use of the resources needed for implementation, enabling further development of sites, and providing relevant knowledge and inputs for new facilities under design or construction.