Minn. R. agency 144, ch. 4731, INDUSTRIAL RADIOGRAPHY, pt. 4731.4110
A licensee may not use a source changer or a container to store licensed material unless the source changer or the storage container has securely attached to it a durable, legible, and clearly visible label bearing the standard radiation symbol under part 4731.2300, having a minimum diameter of 25 millimeters, and the wording: "CAUTION (or DANGER) - RADIOACTIVE MATERIAL. NOTIFY CIVIL AUTHORITIES (or name of company)."
A licensee may not transport licensed material unless the material is packaged, and the package is labeled, marked, and accompanied with appropriate shipping papers, according to parts 4731.0400 to 4731.0424.
Locked radiographic exposure devices and storage containers must be physically secured to prevent tampering or removal by unauthorized personnel. A licensee must store licensed material in a manner that minimizes danger from explosion or fire.
A licensee must lock and physically secure the transport package containing licensed material in the transporting vehicle to prevent accidental loss, tampering, or unauthorized removal of the licensed material from the vehicle.
Minn. R. agency 144, ch. 4731, INDUSTRIAL RADIOGRAPHY, pt. 4731.4110
Statutory Authority: MS s 144.1202; 144.1203