Translation. Region: Russian Federal
Source: International Atomic Energy Agency –
The International Atomic Energy Agency (IAEA), in cooperation with more than 75 countries and 10 international organizations, successfully completed a 36-hour exercise that tested global preparedness and response arrangements for a severe nuclear accident scenario at the Cernavoda NPP in Romania. The ConvEx-3 (2025) exercise started on 24 June and concluded at 17:45 CET on 25 June.
Such exercises are conducted every three to five years and are based on simulated events at a nuclear facility in the host IAEA member state.
The exercise simulated a significant release of radioactive material, requiring participating countries and organizations to make decisions in real time, exchange information, inform the public and coordinate protective measures, including aspects of medical response and cross-border logistics.
“ConvEx-3 (2025) demonstrated the power of international cooperation in nuclear emergency preparedness,” said Carlos Torres Vidal, Director of the IAEA Incident and Emergency Centre. “By working together under realistic scenarios, we are strengthening our collective capacity to protect people and the environment.”
Among the main innovations in this year’s exercise program were the following.
Enhanced regional cooperation: Recognizing the cross-border consequences of severe nuclear accidents, neighbouring countries Bulgaria and the Republic of Moldova coordinated protective measures to ensure a coherent cross-border response. Integrating nuclear security scenarios: Simulations also included tests related to physical security and cybersecurity threats, reflecting new and evolving risks. Enhanced crisis communication testing: An enhanced social media simulator was used to evaluate and improve public communication strategies. Deploying international assistance missions: As part of the IAEA Response and Assistance Network (RANET) Expert groups from Bulgaria, Canada, Lithuania, Moldova, the United States, Sweden and France carried out a number of joint operations, including the use of air and ground-based radiation monitoring equipment.
The exercise highlighted the importance of timely information sharing, accurate assessments and forecasts, and effective public communication in the event of nuclear emergencies.
ConvEx-3 exercises are conducted every three to five years to evaluate and strengthen emergency response mechanisms established in accordance with Convention on Early Notification of a Nuclear Accident And Convention on Assistance in the Case of a Nuclear Accident or Radiological Emergency.
In the coming weeks, the IAEA will gather feedback from all participants to identify good practices and areas for improvement, contributing to the continued strengthening of global nuclear emergency preparedness. The final report of the exercise will be taken into account in preparation for the upcoming International Conference “Nuclear and Radiological Emergencies”, which is scheduled for December this year in Riyadh, Saudi Arabia.
A selection of photos from the ConvEx3 exercise is available at this link.
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