The Member States 25 March 1957, Consolidated version of the Treaty establishing the European Atomic Energy Community#TITLE II - PROVISIONS FOR THE ENCOURAGEMENT OF PROGRESS IN THE FIELD OF NUCLEAR ENERGY#CHAPTER 7 - Safeguards#Article 80

7.6.2016 EN Official Journal of the European Union C 203/32 Article 80 The Commission may require that any excess special fissile materials recovered or obtained as by products and not actually being used or ready for use shall be deposited with the Agency or in other stores which are or can be supervised by the Commission.