On June 24, 2016, the NRC issued a Notice of Violation to Montana State University (MSU) for four violations of NRC requirements, collectively characterized as a Severity Level III problem. The violations involved: (1) failure to control and maintain constant surveillance of licensed material as required by 10 CFR 20.1802, (2) failure to test for leakage and/or contamination of sealed sources in accordance with License Condition 14.A, (3) failure to conduct a physical inventory of sealed sources in accordance with License Condition 25, and (4) the failure to maintain complete and accurate information with regard to leak test and inventory documentation as required by 10 CFR 30.9(a) and as required by License Conditions 14.F and 25 of NRC License No. 25-00326-06. Specifically, between approximately 2008 and 2014, MSU lost two Variant/Agilent Gas Chromatographs containing approximately 13.73 millicuries of Nickel-63 and therefore did not conduct physical inventories or testing for leakage and/or contamination at the specified intervals. Additionally, licensee records indicated that two Nickel-63 sealed sources had been leak tested and physically accounted for, when in fact, the sources were not in the licensee's possession at the time the leak tests and inventories were documented as having been performed.