On June 3, 2019, the NRC issued a Notice of Violation to Source Production & Equipment Company (SPEC or licensee) for a Severity Level III violation. The violation involved the licensee's failure to obtain a specific license authorizing the import of material not covered by the NRC general licenses described in Title 10 Code of Federal Regulations (10 CFR) Parts 110.21 through 110.27. Specifically, between 2012 and 2017, SPEC imported 155 non-U.S. origin disused sealed sources containing the byproduct material (iridium-192, selenium-75, and ytterbium-169) into the U.S. without a specific license as required by 10 CFR 110.20(a).