105 CMR 120.232
Use of Other Controls
(A) When it is not practicable to apply process or other engineering controls to control the
concentrations of radioactive material in air to values below those that define an airborne
radioactivity area, the licensee shall, consistent with maintaining the total effective dose
equivalent ALARA, increase monitoring and limit intakes by one or more of the following
means:
(1) control of access;
(2) limitation of exposure times;
(3) use of respiratory protection equipment; and,
(4) other controls.
(B) If the licensee performs an ALARA analysis to determine whether or not respirators should
be used, the licensee may also consider the impact of respirator use on workers’ industrial health
and safety.