A licensee must retain a copy of each letter that permits the use of radioactive material at a client's address of use, according to part 4731.4428, item A, subitem (1). Each letter must clearly delineate the authority and responsibility of the licensee and the client and must be retained for three years after the last provision of service.
29 SR 755
March 12, 2009
Official Publication of the State of Minnesota
Revisor of Statutes