On November 1, 2013, the NRC issued a Notice of Violation to Canberra Industries, Inc., (Canberra) for a Severity Level III violation involving the licensee's failure to secure from unauthorized removal or access licensed materials that are stored in controlled or unrestricted areas as required by 10 CFR 20.1801. Specifically, Canberra stored an americium-241/ beryllium source in a locked calibration room in which there was a pass-through window to an unlocked outer room that was open and accessible. Also, the source was inside a shielded drum that was not secured to the floor and the motorized device that is used to expose the source could have been operated by unauthorized individuals via an unlocked switch located in the outer room.