On May 27, 2009, the NRC issued a Notice of Violation to Central Indiana Cancer Centers for a Severity Level III violation involving the failure to implement 10 CFR 20.1802. Specifically, as of February 18, 2009, on several occasions while transporting a High Dose Rate Afterloader unit, the licensee left the unit in an unlocked vehicle for several minutes while retrieving other associated equipment. During these periods, the licensee did not control or maintain constant surveillance over the licensed material.