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Nuclear Safeguards Education Portal

IAEA inventory verification

An inspection activity carried out to confirm that the amount of nuclear material actually present at a given time within a material balance area (MBA) is in agreement with the operator's recorded book inventory of nuclear material for the MBA. Under INFCIRC 153 safeguards, the verification of inventory is performed at inventory key measurement points. There are two types of inventory verification: physical inventory verification and interim inventory verification (INFCIRC 153*)