On February 14, 2022, the NRC issued a Notice of Violation (Notice) to Union Carbide Corporation (Licensee) for a Severity Level (SL) III violation. The violation involved the licensee’s failure to maintain a qualified Radiation Safety Officer (RSO) as required by Condition 12 of its NRC License. Specifically, the RSO left the licensee’s employment in June 2017 and the licensee appointed new RSOs in 2017, 2020, and 2021, but did not submit a license amendment request until July 20, 2021, and the new RSO was not approved until August 30, 2021. In addition, the Notice included three SL IV violations associated with License Conditions 15 and 23, involving the licensee’s failure to: (1) maintain records of physical inventories of its devices; (2) monitor authorized users to evaluate their doses to be within the required regulatory limits; and (3) perform periodic radiation surveys of radiation fields around the sources to assure that radiation exposure is within established limits.