The NEA Committee on the Safety of Nuclear Installations (CSNI) and the Committee on Nuclear Regulatory Activities (CNRA) held biannual meetings to discuss their activities and the best practices for the safety assessment and regulation of nuclear facilities.
The 78th and 54th meetings of the CSNI and CNRA, respectively, took place in Paris from 1 to 2 December and from 4 to 5 December 2025, bringing together around 80 delegates from 20 countries.
 Participants of the 78th CSNI meeting
 Participants of the 54th CNRA meeting
A Flash Dialogue Session was organised on the margins of the committee meetings on 3 December 2025 and was attended by 63 delegates from regulatory authorities, research organisations, technical support organisations, and the nuclear energy industry from 18 countries. It provided designers, regulators, vendors, non-governmental organisations, and other interested industry representatives with a unique open space to share their perspectives on the challenges they face and identify opportunities to address these challenges through open, direct, transparent, and collaborative dialogue.
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Flash Dialogue Session
During their respective committee meetings, CNRA Chair Tomoya Ichimura and CSNI Chair Ki Yong Choi thanked participants for sharing their views on key regulatory and technical topics and for providing comments and proposals for future CNRA and CSNI activities. Both committees were informed of the NEA publication Strategic Roadmap for Nuclear Reactor Safety Research and invited to disseminate the recommendations summarised in a related brochure.
Both chairs recognised the need for further enhancing co-operation in emerging areas of growing importance, such as the impact on safety related to the use of AI for innovation purposes and the use of innovation in regulatory practices to consider the use of AI.
During the meetings, the CNRA and CSNI members addressed several topics of interest to both committees, including:
The regulator’s role in leading interactions with new or existing industry players that are introducing innovative approaches and new technologies to ensure effective and efficient nuclear safety;
The insights from a workshop on SMR Safety Assessment: From Challenges to Achievement held on 20-21 November 2025;
Status of the NEA joint undertaking on the use of artificial intelligence in regulatory applications and the strategic approach for including this issue within the scope of CSNI and CNRA activities;
The report on characterisation of local intense precipitation (LIP) that was the basis for the workshop on LIP impacts on nuclear installations;
Brochures related to practices for enhancing leadership, addressing mutual impacts from regulatory activities, activities to continuously improve regulator effectiveness and efficiency, and early engagement between regulators and the industry;
Approval of seven reports, three brochures, and eight new activities, including workshops planned on Accountability-oriented, enabling regulation (AER) and Responsive regulation (RR) and on Obsolescence in Instrumentation and Control, and Power Distribution Systems Related to VVER (water-cooled water-moderated power reactor) Reactors.