might control and direct the activities of the Scientific and Base Facilities Task Groups through his Scientific Deputy, Dr. Alvin C. Graves. These relationships will be apparent in the organization chart, Appendix I. During periods between operations, the Joint Task Force Commander's authority, insofar as AEC functions are con- cerned, is limited to operational planning and coordination. Ata time agreed upon by the Atomic Energy Commission and the Department of Defense, the Commission withdraws from the Manager, Sante Fe Operations Office, and assigns to the Commander, Joint Task Force, full authority to act for the Commission in all matters which concern the successful execution of the Task Force Operation Plan. It is planned that the Atomic Energy Commission will issue such a letter to the Commander, Joint Task Force SEVEN, to assign him authority for execution of Operation Castle. The effective date of transfer of authority will mark the beginning of the operational period and on that date the Task Force Commander will assume full operational control of the Scientific Task Group and the AEC Base Facili- ties Task Group. AEC authority will be relinquished by the Joint Task Force Commander on a date which he establishes after the final detonation of the series. 3. Mission a. The mission of Task Group 7.5 is to: (1) Provide all base facilities at the Pacific Proving Grounds nec- essary to the Task Force and AEC and its contractors in the conduct of test operations. (2) Provide all structures and related facilities required by the Scientific Task Group for the successful execution of the scientific experiments. Special Rereview (3) Provide personnel, equipment and materials to support the Sci- (4) Maintain all base facilities at the Pacific Proving Grounds (5) Provide camp and support facilities at the Proving Grounds, in- Final Determination entific Task Group in its on-site operational activities. except for the military communications facilities at Eniwetok Island and Bikini Atoll. cluding housing, feeding, laundry, medical, recreational and other camp services on all islands except Eniwetok; land traensportation and motor pool operation; boat pool operation; utilitiles operations except military communication facilities on Eniwetok Island and Bikini Atoll and the POL farm on Eniwetok Island, and warehousing and property accounting for Tesk Groups 7-5 and 7.1, as requested. (6) (7) Provide for radiological safety of TG 7.1 and 7.5 personnel in periods between operations. Formulate and Operat= a comprehensive security program to cover AEC interest during non-operations] periods, and during cperea- tions to provide at the proving groands security servicing for

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