R 333.5439 Class A installations.

Rule 439. (1) Class A installations shall comply with all requirements of R 333.5438 except for a permissible dose equivalent rate of 7 millirems per hour at an accessible external point. (2) An individual monitoring device, such as a film badge dosimeter or thermoluminescent dosimeter, shall be permanently assigned to each occupationally exposed individual. This monitoring shall be continuous during employment as a radiation worker. (3) Personnel exposure records shall be kept on permanent available file at the facility where the exposure occurs. (4) Class A approval permits unlimited use at maximum capacity.