(4) Acting as agent for the Atomic Energy Commission for the exercise of such functions cn behalf of the Commission as the latter may deem necessary. Purpose - The purpose of this Operation Plan is to outline how Task Group 7.5 will execute the functions assigned to Force Operation Plen. In addition, it in the Task it will report services and fa- cilities provided by the Task Group which will be available to oth- er personnel of the Task Force while they are at the Pacific Proving Grounds, and will outline vrocedures and identify sources of infor- mation which may be useful to other Task Groups. AEC Responsibilities - Tne AEC's Pacific Proving Grounds comprises Eniwetok and Bikini Atolls in the Marshall Islands. The water area surrounding these atolls end bounded by Lat. 12°45'N on the North, Long. 166°16'E on the East, Lat. 10°15'N on the South, and Long. 160°35'E on the West has been established as a danger area and unauthorized entrance by water or air is prohibited. On May 13, 1948, the Commission assigned to the Manager, Santa Fe Operations Office, responsibility for developing the Pacific Proving Grounds end administering the Commission's interests there. To assist the Manager in fulfilling these responsibilities, there has been established within SFO the Eniwetok Field Office. The Field Manager, Eniwetok Field Office, is charged with responsi- bility for all matters relating to direct and contract activities at the Pacific Proving Grounds; for planning and executing a comprehensive progrem for the design, construction and inspection of technical and other project facilities, and is authorized and di- rected to administer the functions essigned to his staff and contractor organizations at the proving grounds. Beginning with Operation Greenhouse, Dr. A. C. Graves, Division Leader, J-Division, Los Alamos Scientific Laboratory, was suthorized to represent the Atomic Energy Commission in ali matters pertaining to the technical activities at the proving grounds. For Operation Ivy similar euthority was given Dr. Graves. On DeAE Special Rereview Final Determination cember 15, 1952, the Chairman, Atomic Energy Commission, informea the Chairman, Military Liaison Committee to the Atomic Energy Comhission that the Commission proposed to continue Dr. Graves in the position of Deputy for Scientific Matters. In AEC test operations brior to Castle, the AEC functions of engineering, design, conptruction, Operations and support have been performed by a Task Ynit within the organizational structure of the Scientific Task €roup. In order that the responsibilities for AEC functions might Pe more clearly identified and the position of the AEC in the Task orce Organization might be more pusitively established, it was recommended that the AEC component of the Task Force be given Task Group status. By letter, dated February 26, 1953, the Director, Division of Military Application, AEC, formally requested the Commander, Joint Task Force SEVEN to organize the AEC Base Facilities Task Group. In making this request, the Director, DMA, accepted certain conditions among wrich was the requirement that the Command- er, Joint Task Force, in accomplishment of his scientific mission, -2-

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