Any operator in the territory of a State acceding to the European Union shall provide the Commission, within 30 days of the date of entry into force of this Regulation in that State, with an initial book inventory of all nuclear materials it is holding, including nuclear materials previously considered as retained waste and nuclear materials previously exempted from IAEA safeguards, except nuclear material on which IAEA safeguards were terminated. The format set out in Annex V shall be used.