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Annual Report on Abnormal Occurrences for FY2012

The NRC recently issued its annual report on abnormal occurrences for fiscal year 2012, which cited 21 events involving radioactive materials and one event at a commercial nuclear power plant.  An accident or event is considered to be an abnormal occurrence if it involved a major reduction in the degree of protection of public health and safety.  The report details investigations of each incident by the NRC, Agreement States and licensees, as well as measures taken to ensure such incidents do not recur.  The report on abnormal occurrences for fiscal year 2012 was initially published in May as NUREG-0090, Volume 35.  However, the report was revised to include editorial corrections and reissued in August as NUREG-0090, Volume 35, Revision 1.  Both reports are available here.