On September 26, 2016, the NRC issued a Notice of Violation to Ontonagon County Road Commission for a Severity Level III violation. The violation involved the failure to use a minimum of two independent physical controls that form tangible barriers to secure portable gauges from unauthorized removal when the portable gauges were not under the control and constant surveillance of the licensee as required by 10 CFR 30.34(i). Specifically, as of June 14, 2016, the licensee secured portable gauges with only a single physical barrier during business hours. The gauges were not under the control and constant surveillance of the licensee.