On July 9, 2008, a Notice of Violation was issued 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 are not under the control and constant surveillance of the licensee. Specifically, the licensee did not have tangible barriers to secure a portable gauge from unauthorized removal while stored in a building located within a secured area.