Status Report on Long-Term Operation of Nuclear Power Plants Beyond 60 Years

The Nuclear Energy Agency (NEA) Working Group on External Events (WGEV) was established in 2014 to improve the understanding and treatment of external hazards that would support the continued safety performance of nuclear installations and improve the effectiveness of regulatory practices in NEA member countries. The WGEV is a forum for experts to exchange information and experience on external events in member countries, thereby promoting co-operation and maintaining an effective and efficient network of professionals. This report aims to facilitate communication between reactor safety stakeholders by summarising the main aspects of the WGEV’s activities: the context and key safety topics related to the analysis and management of external events; the approach and methodologies to cope with reactor safety issues; and a discussion of potential future activities. This report was approved by the CSNI in June 2024.