Section 144-220-E-E-30 - Records of quarterly inventoryA. Each licensee and registrant shall maintain records of the quarterly inventory of sources of radiation and devices containing depleted uranium required by E.10 and retain each record for three years after the date of the inventory.B. The record must include the date of the inventory, name of the individual making the inventory record, radionuclide, number of becquerels (curies) or mass (for DU) in each in device, location of source of radiation, and manufacturer, model and serial number of each source of radiation, as appropriate.10-144 C.M.R. ch. 220, § E-E-30