new Task Force duty stations several weeks prior to definitive action on clearance. This would result in time lost not only for the individual but also for the agency concerned. The only solution to this well-known and recurrent problem involves the initiation of clearance action as far in advance of actual reporting as possible and the most expeditious handling of clearance papers by all agen- cies concerned. The J-5 Division of the Headquarters had the responsibility of planning the necessary communications for the Operation and in general the two most important factors here were equipment and personnel. It was necessary to determine what equipment would be necessary properly to support CASTLE and find competent personnel to operate that equipment, A study of the major communication deficiencies which occurred during Operation IVY served as an excellent guide for CASTLE planning and resulted in many improvements over the IVY procedures and systems. A more detailed account of communications plan- ning is included as Appendix C. 47