OPERATION PLAN TASK GROUP 7.5 AEC-BASE FACILITIES 1. 2. Task Group Organization a. Headquarters, Task Greup 7.5 b. Supporting Organizations Janes E, Reeves (1) Santa Fe Operations Office - AEC Carroll L. Tyler (2) Eniwetok Field Office - AEC Paul W. Spain (3) Holmes & Narver, Inc. Claude L. Coray General a. Situation - Operation Castle is a full-scale test operation developed by the Atomic Energy Commission for testing of nuclear devices and experimental weapons under development in the Los Alamos Scientific Laboratory and University of California Radiation Laboratory. In addition to the extensive programs of diagnostic experiments sponsored by these laboratories, the Department of Defense is including a program of wearons effects experiments. By agreement between the Department of Defense and the Atomic Ener- by Commission, the operation will be conducted by Joint Task Force SEVEN. By direction of the Joint Chiefe of Staff, the Task Perce is commanded by Major General P, W. Clarkson, U. 5. Army. The Task Force is Groups: comprised of the Commander and his staff and five Task Task Group 7.1 - Scientific Task Group 7.2 - Army Task Group 7.3 - Navy Task Group 7.4 - Air Force Task Group 7.5 - AEC-Base Facilities In approving the establiskrent of a permanent Joint Task Force or- ganization for support and execution of AEC full-scale tests at Special Rereview Final Determination the Pacific Proving Grounds, the Joint Chiefs of Staff specifically charged the Joint Task Force Commander with (4) (4) (3) Technical responsibility for ell phases of the operation. The safety of personnel and units assigned to the Joint Task Force Advising the approvriate Comzanders under the Joint Chiefs of Staff of the special hazards and danger areas involved in tests and appropriate precautions required to insure the safety of units other than the Joint Tesk Force.

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