On March 8, 2018, the NRC issued a Notice of Violation to BWXT Nuclear Operations Group, Inc. (BWXT) facility in Lynchburg, VA for a Severity Level III problem. Specifically, the violations involved the licensee's (1) failure to apply sufficient controls to limit the likelihood of an inadvertent criticality to highly unlikely in two unfavorable geometry desiccant vessels located in the Research and Test Reactor (RTR) area, (2) failure to assure that two unfavorable geometry desiccant vessels located in the RTR area remained subcritical under normal and credible abnormal conditions, and (3) failure to maintain process safety information pertaining to the hazards, and information pertaining to the technology and equipment, of an air purification system servicing a glove-box line in the RTR area.