105 CMR 120.380
Radiation Safety Officer
The radiation safety officer shall ensure that radiation safety activities are being performed
in accordance with approved procedures and regulatory requirements in the daily operation of
the licensee's or registrant’s program.
(A) The minimum qualifications, training, and experience for radiation safety officers for
industrial radiography are as follows:
(1) Completion of the training and testing requirements of 105 CMR 120.320(B);
(2) 2000 hours of hands-on experience as a qualified radiographer in industrial radiographic
operations; and,
(3) Formal training in the establishment and maintenance of a radiation protection program.
(B) The Agency will consider alternatives when the radiation safety officer has appropriate
training and experience in the field of ionizing radiation, and in addition, has adequate
experience and knowledge with respect to the establishment and maintenance of a radiation
safety protection program.
(C) The specific duties of the RSO include, but are not limited to, the following:
(1) To establish and oversee operating, emergency, and ALARA procedures as required by
105 CMR 120.200, and to review them regularly to ensure that the procedures are current and
conform to Agency regulations and to the license or registration conditions;
(2) To oversee and approve all phases of the training program for radiographic personnel
so that appropriate and effective radiation protection practices are taught;
(3) To ensure that required radiation surveys and leak tests are performed and documented
in accordance with 105 CMR 120.000, including any corrective measures when levels of
radiation exceed established limits;
(4) To ensure that personnel monitoring devices are calibrated and used properly by
occupationally-exposed personnel, that records are kept of the monitoring results, and that
timely notifications are made as required by 105 CMR 120.200;
(5) To ensure that any required interlock switches and warning signals are functioning and
that radiation signs, ropes, and barriers are properly posted and positioned;
(6) To investigate and report to the Agency each known or suspected case of radiation
exposure to an individual or radiation level detected in excess of limits established by these
rules and each theft or loss of source(s) of radiation, to determine the cause, and to take steps
to prevent its recurrence;
(7) To have a thorough knowledge of management policies and administrative procedures
of the licensee or registrant;
(8) To assume control and have the authority to institute corrective actions including
shutdown of operations when necessary in emergency situations or unsafe conditions;
(9) To maintain records as required by 105 CMR 120.000.
(10) To ensure the proper storing, labeling, transport, and use of exposure devices and
sources of radiation;
(11) To ensure that quarterly inventory and inspection and maintenance programs are
performed in accordance with 105 CMR 120.316 and 120.318; and,
(12) To ensure that personnel are complying with 105 CMR 120.000, the conditions of the
license or the registration, and the operating and emergency procedures of the licensee or
registrant.