R 325.5211 Radiation levels from external sources in unrestricted areas.

Rule 211. (1) Except as authorized by the department pursuant to subrule (2) of this rule, a licensee or registrant shall not receive, acquire, possess, use, or transfer sources of radiation in such a manner as to result in an individual in an unrestricted area receiving a dose in excess of the following: (a) Two millirems in any 1 hour. (b) One hundred millirems in any 7 consecutive days. (c) Five hundred millirems in any 1 year. (2) A person may apply to the department for proposed limits upon levels of radiation in unrestricted areas in excess of those specified in subrule (1) of this rule resulting from the applicants possession or use of sources of radiation. The application shall include information as to anticipated average radiation levels and anticipated occupancy times for each unrestricted area involved. The department shall approve the proposed limits if the applicant demonstrates to the satisfaction of the department that the proposed limits are not likely to cause any individual to receive a dose to the whole body in any period of 1 calendar year in excess of 0.5 rem.