A licensee must retain a copy of each written directive required under part 4731.4408 for three years.
A licensee must retain a copy of the procedures required under part 4731.4409, item A, for the duration of the license.
Minn. R. agency 144, ch. 4731, MEDICAL USE OF RADIOACTIVE MATERIAL, pt. 4731.4501
Statutory Authority: MS s 144.1202; 144.1203