The IRSN is a French public establishment of an industrial and commercial nature placed under the joint authority of the Ministries of the Environment, Health, Industry, Research and Defence. The IRSN’s field of expertise covers all of the risks related to ionising rays used within industry or medicine, or even natural radiation rays. More precisely, the IRSN carries out missions relating to analysis and research in the following fields: the safety of nuclear installations, including those relating to defence; the safety of the transport of radioactive and fissile materials; the protection of man and the environment against ionising rays; the protection and control of nuclear materials and products likely to be used in the manufacture of weapons and the protection of installations and transport against acts of malevolence (theft or misappropriation of nuclear materials, or even sabotage). The research activities, most often carried out within the framework of international programmes, allows IRSN to maintain and develop its expertise. IRSN was involved in or coordinated several EC FP projects on waste safety (EVEREST, SPA, NFPRO, BENIPA, PAMINA, MICADO, FORGE, and SITEX). IRSN chairs the ETSON association on nuclear reactors and radioactive waste safety as well as the Melodi association on radioprotection.