The periodic safety review of the uranium-bearing materials storage facilities at Tricastin (BNIs 178, 179 and 180) was completed, with ASN issuing technical requirements for the continued operation of these BNIs. The periodic safety reviews show the importance of an in situ verification of the conformity of the Protection Important Elements (EIPs) that is as exhaustive as possible, or as representative as possible of the EIP that are not accessible. They also illustrate the need for a robust approach to the control of the ageing of fuel cycle facilities. This is notably the case for the facilities in the back-end of the “cycle”, for which the control of ageing is a priority issue. This is the subject of dedicated inspections and increased vigilance when examining the ongoing periodic safety reviews. ASN Report on the state of nuclear safety and radiation protection in France in 2023 337 • 12 • “Nuclear fuel cycle” facilities 12 05 15 08 11 04 14 06 07 13 AP 03 10 02 09 01
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