The Test Aircraft Unit (TAU) gave radsafe briefings for al 1 TG 7.4 aircrews and maintained the specialized radiac equipment inst lied in its aircraft. The TAU also performed the aerial sample filter in tallation, removal, and packaging. Training i Annex N to JTF 7 Operation Order 3-53 (see Appendix A) sp cified and directed that two .evels of training -~ basic indoctrination nd technical -- be required, but allowed each task group to vary the scope of instruction according to the group's operational requirements. indoctri- Basi nation included nontechnical instruction in radiological meas res and techniques. Such instruction was to be given to all task for e personnel to encourage efficient performance of duties within the allow ble exposure levels for radioactive contaminants. Technical training was equired of all personnel who staffed the task force radsafe organization and per- formed the monitoring and other technical operations, such as econtamina- tion and instrument repair. e obtained The technical instruction was to through existing service courses and at training sessions est lished at the task group level. Little information has been found on the level of instruc ion or the content of the basic indoctrination given by the various task roups; the course instituted by the Army (described on p. 92) is probabl representa- tive, however. TASK GROUP 7.1. The technical radsafe group depended on taining from the AEC and the services both trained personnel and the ecialized training the task group required. qualified The sources for technicall health physics personnel were the Health Division of Los AlamogB Scientific Laboratory (LASL) and special organizations within the Departmpnt of Defense (DOD). In the interim between IVY and CASTLE, the Depar tment of the Army authorized the Chief Chemical Officer to establish the ls Lt Radsafe Support Unit (RSSU) with the mission of supporting test operat fons at both the Nevada and Pacific Proving Grounds. 87 This organization was established