105 CMR 120.561
Brachytherapy Sources Accountability
(A) A licensee shall maintain accountability at all times for all brachytherapy sources in storage
or use.
(B) Promptly after removing sources from a patient or a human research subject, a licensee shall
return brachytherapy sources to a secure storage area.
(C) A licensee shall maintain a record of the brachytherapy source accountability in accordance
with 105 CMR 120.592(A).