On October 23, 2007, a Notice of Violation (NOV) and Proposed Imposition of Civil Penalty in the amount of $3,250 was issued for a Severity Level III violation of 10 CFR 30.34(i) involving the licensee's failure, on two instances, to maintain a minimum of two independent physical controls that formed tangible barriers to secure a portable gauge from unauthorized removal during a period when the portable gauge was not under the control and constant surveillance of the licensee. In the second instance, this resulted in the loss of the gauge into the public domain. Specifically, in the first instance, an authorized portable gauge user left the portable gauge unattended and unsecured in the bed of a company truck as he returned to the office to retrieve paperwork. In the second instance, the licensee failed to use two independent physical controls to secure a portable gauge after it fell out of a company vehicle onto a public highway and until it was retrieved and returned by a member of the public a few minutes later.