<A en arenenantcL With the exception of TG 7.1, radsafe assignment for most personnel was "additional duty;" positions existed for only a few "primary duty" staff and supervisory personnel. Each task group was assigned at least one fully trained radiological defense engineer who supervised the activities of the task group. Thus, the Army task group trained radsafe personnel from each activity in its group, the Navy task group placed radiological safety under Damage Control in accordance with routine Navy organizational practices, and the Air Force task group utilized flight crewmembers as monitors and ground personnel for aircraft decontamination. The one exception, TG 7.1, had been designated the major radsafe unit for onsite operations and was given the responsibility for specific centralized and highly technical radsafe services. Considerable staffing prob- lems had to be solved before assembling the necessary TG 7.1 "primary duty" technicians, most of whom were military personnel on temporary duty assignments. Even for this unit, however, the "additional duty" philoso- phy was utilized where possible for personnel economy (Reference 9, Appen- dix B). TASK GROUP 7.1.:A radsafe unit, TU 7, was continued from Operation IVY. The unit became a technical service group for TG 7.1 and assisted the unit and supervisory personnel of each scientific project by providing technical advice and training for project personnel designated as monitors (Reference 17, p. 13). In addition, TU 7 was the radsafe organization for TS 7.5 as well as the technical radsafe unit for JTF 7. By direction of Reference 9, Operation Plan 3-53, C1G 7.1 was to provide for: Radiological protection of TG 7.1 and TG 7.5 personnel Maintenance of operational efficiency for TG 7.1 and TG 7.5 in the presence of radiological contamination @ Technical assistance to other JTF 7 elements on nonmedical matters pertaining to radiological safety. To accomplish the above mission, the Commander, TU 7, performed the following tasks (Reference 19): 79