35.2647—Records of additional technical requirements for mobile remote afterloader units.
(a)
A licensee shall retain a record of each check for mobile remote afterloader units required by § 35.647 for 3 years.
(4)
Notations indicating the operability of each entrance door electrical interlock, radiation monitors, source exposure indicator lights, viewing and intercom system, applicators, source transfer tubes, and transfer tube applicator interfaces, and source positioning accuracy; and