Part 4731.7220 - PERSONNEL MONITORINGA. A licensee may not permit an individual to act as a logging supervisor or logging assistant unless the individual wears a personnel dosimeter at all times during the handling of licensed radioactive materials. Each personnel dosimeter must be assigned to and worn by only one individual. Film badges must be replaced at least monthly and other personnel dosimeters that require replacement must be replaced at least quarterly. All personnel dosimeters must be evaluated at least quarterly or promptly after replacement, whichever is more frequent. B. A licensee must provide bioassay services to individuals using licensed materials in subsurface tracer studies if required by the license.C. A licensee must retain records of personnel dosimeters required under item A and bioassay results for inspection until the commissioner authorizes disposition of the records.Minn. R. agency 144, ch. 4731, WELL LOGGING, pt. 4731.7220
Statutory Authority: MS s 144.1202; 144.1203