Nuclear Regulatory Commission (NRC) Report to Congress on Abnormal Occurrences Fiscal Year 2021

Excerpt: “Six of these events were medical events, such as misadministration of radioactive material in diagnosis or treatment of an illness. This represents approximately 0.005 percent of the estimated number of nuclear medicine and radiation therapy procedures involving radioactive material performed in the United States annually. Two events – one at a medical facility and another at the National Institute of Standards and Technology Center for Neutron Research in Gaithersburg, Maryland, – involved serious safety-significant deficiencies in management or procedural controls. No events at commercial nuclear power plants in fiscal year 2021 met the criteria for an Abnormal Occurrence declaration. U.S. law defines an Abnormal Occurrence as an unscheduled incident or event that the NRC determines to be significant from the standpoint of public health or safety.”