On March 4, 2004, a Notice of Violation was issued for a Severity Level III violation involving the failure to secure from unauthorized removal or limit access to licensed material (8 millicuries of cesium-137 and 44 millicuries of americium-241 in each of three portable moisture/density gauges) in a controlled area, and failure to control and maintain constant surveillance of this licensed material. Additionally the licensee failed to lock the gauges, to prevent unauthorized or accidental removal of the sealed source from its shielded position, when not under the direct surveillance of an authorized user.