and briefing all personnel going into radiological exclusion areas (radex). c. Monitor Section for providing all monitoring services and mannir check points. d. Supply Section for providing rad-safe supplies and laundry servic (facilities furnished by TG 7.5). e. Decontamination Section for operating facilities for personnel and equipment decontamination. f. Instrument Repair Section for maintaining rad-safe instruments. g. Laboratory Section for determining the amount of radioactivity in soil, water, air, and food samples. At the start of the operation the Eniwetok organization strength was: that at Bikini, 45. The total was later reduced to 78. All supply problem were handled through J-4, located at Eniwetok. The master files of photodosimetry records were maintained at Eniwetok and the film badges issued to members of TG 7.2, TG 7.3, TG 7.4, and Hq., JTF 7, were processed k the Eniwetok Dosimetry and Records Section. Responsibility for radiological safety for TG 7.5 personnel was not a function of TU-6 during Hardtack, in contrast with past operations, Howev H&N rad-safe personnel were utilized within the TU-6 organization and rad safe support for both TG 7.1 and TG 7.5 was provided by the Task Unit. 1.3 Procurement of Personnel Personnel for manning TU-6 were obtained from the Army, Navy, anc faorp Air Force. The majority was obtained from the First RSSU, a Chemical Corps unit stationed at Ft. McClellan, Alabama. The following is a breakdown of the total personnel utilized by TU-6: 1.4 Army -- 95 officers and enlisted men. Navy -- 8 officers and enlisted men. Air Force -- 12 officers and enlisted men. LASL -- 4 civilian health physicists as advisors. UCRL -- 3 civilian health physicists as advisors. Training of Personnel Training of TU-6 personnel was carried out in several places, The majority of the First RSSU personnel received training at Ft. McClellan, — Alabama, the unit providing its own training staff. Approximately 40 members of the First RSSU participated as trainees in Operation Plumbbob at : the Nevada Test Site with the Reynolds Electric and Engineering Co. rad-s4 group. Instrument repair personnel received extensive training at the Navy re,