I eee pi a re oo ee mE , - Oper2tion Plan CTG 7.3 No. 1~53 Change #4 c. 3604, Mail Issues by RPIO's. “then necessary to zccuest publi- cations by message, ships of TG 7.3 shall address such resuest to NavComSta Pearl Harbor, (RPIO). Delivery will be made by Officer Messenger Mail to the OMMC Parry Island, or OMM Sub-Center at Eninman Island as appropriate, All TG 7.3 holders shall furnish a copy of Sections III and V of RPS 10(A) to NavComSta Pearl Harbor (RPIO prior to arrival at Eniwetok, d. 3664, Autgorization of Cryptoboard Members, The procedure for authorizing cryptoboard members is set forth in TG 7.3 Instruction 5521.1 dated 28 jug., 1953. In addition to the clearance required therein, cryptoboard members should be ccsignated in writing to handle crypto material in accordance with art. 3664, USF 70(B). Pia F-9a Change #4