On October 9, 2015, the NRC issued a Notice of Violation to Cal Testing Services, Inc., for a Severity Level III violation involving the failure to ensure each individual who acts as a radiographer or a radiographer's assistant wears a direct reading dosimeter, an operating alarm rate meter, and a personnel dosimeter at all times during radiographic operations as required by 10 CFR 34.47(a). Specifically, on March 20, 2015, a radiographer’s assistant wore an inoperable alarm ratemeter while performing radiographic operations.