Accounting system
Article 9
1. Starting from the moment operators hold nuclear material, they shall maintain a system of accountancy and control for nuclear materials, which shall be effective in preventing, detecting and timely fixing irregularities leading to situations where nuclear material is incorrectly accounted for. This system shall include accounting and operating records and, in particular, information on the quantities, category, form and composition of nuclear materials as provided for in Article 21, their actual location and the particular safeguard obligation as provided for in Article 19, together with details of the recipient or shipper when nuclear materials are transferred. 2. The system of measurements on which the records are based shall comply with the most recent international standards or shall be equivalent in quality to those standards. On the basis of those records, it must be possible to draw up and substantiate all accounting declarations made to the Commission. All records related to nuclear materials shall be retained as long as the nuclear materials are present in the installation, and for at least 5 years after the nuclear materials stopped being present in the installation, unless agreed otherwise. Further details may be specified in the particular safeguard provisions referred to in Article 8 for each installation. 3. Accounting and operating records shall be made available in electronic form, if they are kept in this form by the installation. For installations referred to in Article 2, point (27)(a), an up-to-date list of inventory items shall be made available to the Commission’s inspectors in electronic form upon reasoned request, using the available information in accordance with the indicative format set out in Annex X.