Minn. R. 4731.7050
LABELS, SECURITY, AND TRANSPORTATION PRECAUTIONS
Subpart 1. Labeling. A. A licensee may not use a source, source holder, or logging tool that contains licensed material unless the smallest component that is transported as a separate piece of equipment with the licensed material inside bears a durable, legible, and clearly visible marking or label. The marking or label must contain: (1) the radiation symbol, except the color requirement under part 4731.2300 need not be met; and (2) the words "DANGER (or CAUTION), RADIOACTIVE MATERIAL." B. A licensee may not use a container to store licensed material unless the container has securely attached to it a durable, legible, and clearly visible label. The label must contain: (1) the radiation symbol specified under part 4731.2300 ; and (2) the words "CAUTION (or DANGER), RADIOACTIVE MATERIAL. NOTIFY CIVIL AUTHORITIES (or name of company)." C. A licensee may not transport licensed material unless the material is packaged, labeled, marked, and accompanied with appropriate shipping papers according to parts 4731.0400 to 4731.0424 . Subp. 2. Storage and transportation. A. A licensee must store each source containing licensed material in a storage container or transportation package that is locked and physically secured to prevent tampering or removal of licensed material from storage by unauthorized personnel. B. A licensee must store licensed material in a manner that minimizes danger from explosion or fire. C. A licensee must lock and physically secure the transport package containing licensed material in the transporting vehicle to prevent: (1) accidental loss; (2) tampering; or (3) unauthorized removal of the licensed material from the vehicle.