On June 6, 2017, the NRC issued a Notice of Violation to Guam Medical Imaging Center for a Severity Level III Problem for failure to implement 10 CFR 35.40(a) and 35.41(a). Specifically, between November 5, 2013 and January 9, 2017, the licensee prepared written directives for the administration of iodine-131 and radium-233 that were not dated and signed by an authorized user before administration, as well as used verbal authorization of written directives in place of developing, implementing, and maintaining written procedures to provide high confidence that administrations were in accordance with the written directive.