3. As during previous Joint Task Force operations, the Scientific Task Group, 7.1, in this case, “lived” with J-Division at LASL. Dr. Ogle, the Commander, worked closely with Dr. Graves, J-Division leader and Scientific Deputy of the Joint Task Force. J-l section combined the AG office of the Task Group and the personnel section of J-Division. J-3 was mainly a Task Group section, but the operational nature of its duties kept it in close contact with all Project people. J-% combined the Supply functions of the ) “Taek Group with the Supply and Property Division of LASL, which normally furnishes those services for J-Division. J-6, the test facilities section, prepared and coordinated designs, plans » and construction requirements, acting as a facilitating unit between the scientific projects and the AEC*s contractor at PPG. Oo 7 ; 7" Aa an operating principle, “Local ground rules" are observed in any case of question or of conflict between regulations of the AEC and DOD. In most cases, ABC and DoD regulations are closely coordinated prior to publication, but understandable aifterences occasionally appear. In such cases, rules of oh a military service of JTF aree interpreted or adjustedto enable compliance with those of the AzC, and LASL, or other agencies primarily responsible for. carrying on the scientific Program. C. Prior to Feb, 1953 _ 1. . | ry Definitive planning for CASTLE was considerably curtailed by the lack of a tim feel for the scope ‘and,aiboctated experimentation. The operations section was confronted by those limitations which a ¢ re inherent to scientific experimentation in the field of ‘testing atomic weapons and/or devices. Some of those limiting factors weres Be Initial designs and engineering could not be pursued until a general agreenent was reached on the types and/or systems of thermonucles onoe