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An emergency situation is subject to multiple sources of uncertainties which should be identified in advance in order to improve the emergency and recovery management, and so optimally foster the living conditions of the population and the quality of their environment. In this context, the Work Package 4 of the European Research Project CONFIDENCE aimed at identifying and reducing uncertainties which could emerge in decision-making processes, in order to improve the preparedness and response after a nuclear accident. To that end, stakeholder panels have been set up in several European countries to collect their views and concerns regarding the decisions to be taken in the event of a nuclear crisis (e.g. evacuation, food restrictions, etc.). More particularly, the implementation of these panels allowed the researchers to (i) identify the main uncertainties that may hamper decision-making processes and to (ii) evaluate the influence of prior decisions made during the emergency phase over the medium to long-term evolution of the situation. Based on these discussions, the various types of uncertainties raised by the national panels have been analysed in order to suggest recommendations to better consider them and to improve the decision-making processes. This paper aims to detail the recommendations resulting from the panels discussions.

Under the framework of the CONFIDENCE project, work package 4 was focusing on the transition to long-term recovery, involving stakeholders in decision-making processes. The essential research was performed using a participatory approach, which combined scenario-based stakeholder discussion panels and transnational stakeholder surveys following the Delphi methodology. The objective was to identify and address the issues and uncertainties arising in the preparedness and management of the transition phase and to explore ways to facilitate the incorporation of stakeholders' expertise, points of view and interests in the decision-making processes. The final goal was to build best practices for planning optimal remediation strategies during the transition phase considering stakeholder involvement in the decision-making process. The results obtained from the work undertaken in nine European countries are presented.