Section 120.673 - Operating, Safety, and Emergency Procedures(A) The licensee shall have and follow written operating procedures for: (1) Operation of the irradiator, including entering and leaving the radiation room;(2) Use of personnel dosimeters;(3) Surveying the shielding of panoramic irradiators;(4) Monitoring pool water for contamination while the water is in the pool and before release of pool water to unrestricted areas;(5) Leak testing of sources;(6) Inspection and maintenance checks required by 105 CMR 120.681;(7) Loading, unloading, and repositioning sources, if the operations will be performed by the licensee; and,(8) Inspection of movable shielding required by 105 CMR 120.643(H), if applicable.(B) The licensee shall have and follow emergency or abnormal event procedures, appropriate for the irradiator type, for:(1) Sources stuck in the unshielded position;(2) Personnel overexposures;(3) A radiation alarm from the product exit portal monitor or pool monitor;(4) Detection of leaking sources, pool contamination, or alarm caused by contamination of pool water;(5) A low or high water level indicator, an abnormal water loss, or leakage from the source storage pool;(6) A prolonged loss of electrical power;(7) A fire alarm or explosion in the radiation room;(8) An alarm indicating unauthorized entry into the radiation room, area around pool, or another alarmed area;(9) Natural phenomena, including an earthquake, a tornado, flooding, or other phenomena as appropriate for the geographical location of the facility; and,(10) The jamming of automatic conveyor systems.(C) The licensee may revise operating, safety, and emergency procedures without Agency approval only if all of the following conditions are met: (1) The revisions do not reduce the safety of the facility;(2) The revisions are consistent with the outline or summary of procedures submitted with the license application;(3) The revisions have been reviewed and approved by the radiation safety officer; and(4) The users or operators are instructed and tested on the revised procedures before they are put into use.