On April 23, 2020, the NRC issued a Notice of Violation and Proposed Imposition of Civil Penalty in the amount of $7,500 to Lantheus Medical Imaging (Licensee) for a Severity Level III problem associated with two related violations for deliberate misconduct by a former senior technical support specialist and a SL III violation for the licensee's failure to comply with a condition of its NRC license. The first two violations involved the licensee's failure to: (1) monitor the occupational radiation exposure of a former employee as required by Title 10 of the Code of Federal Regulations (10 CFR) Section 20.1502, and (2) provide related information to the Nuclear Regulatory Commission (NRC) that was complete and accurate in all material respects, as required by 10 CFR 30.9(a). The third violation involved the licensee's failure to comply with Condition 12 of its NRC license, which required that licensed material shall be used by, or under the supervision of, an individual specifically named in the license. Specifically, between January 2014 and December 2017, the licensee did not monitor occupational exposure to radiation from licensed sources and because a former employee did not always wear required dosimetry, his annual exposure to radiation could have excessed the regulatory limit. Additionally, on August 15, 2018, the licensee terminated the employment of the supervising individual listed in Condition 12 of its NRC license, and the license amendment request was not submitted until September 21, 2018.