3-67 — 3,1h SECURITY As during previous operations, the security activities of Task Groups 7.2 and 7.5 were joint responsibilities, Within ™ 7.1, coordination for and establishment of security policies was effected by the Classification Officer, while personnel security functions were delegated to the Milita-y Executive, J-l, The aspects of personnel security were redelegated to cove: the three broad groups of participants at Los Alamos (LASL, Sandia, EGk&., and 1ST RSSU), Livermore (UCRL), and Sandia Base (DWET), JTF SEVEN SOP's 206-1 through 205-9, establishing the seeurity policiefer HARDTACK, were published between 1 October and 25 November 1957. These nin docunvats were reoroJnced by J-1, TG 7.1,combined with TG 7.1 Implement. ing instructions, and cissrionted to the staff and subordinate units on 13 December 1958, This file conustititea the CTG 7.1 security policies for the operation. 3.1h.1 Predeparture Securi wy Indoctrination. A joint Security Indo:trina- sion Letter for Task Groups 7.1 and 7.5 was published on 23 Decem2er 1957. This lccter esvablished the procedures +o be used in the instruction of personne. plaming to participate in the operation. [It was issued with the concurr2ace of CJTF SEVEN, and inecrperated both the requirements o* the AEC Security Manual, Vol. 200), and the JTY SEVEN SOP 205-2, "Basic Security indoctrination," Each HaRDTACK participant was required to acknowledge that he had read and had been tested on the contents of this letter, A statement to this effect was forwarded with his request for travel orders, and the signed copy was required before travel orders were issued. conten! Doe Luk R All statements were filediin the cognizant Adjutant General's office, 3e14.2 Transmission of Classified Documents in Personal Custody of Individ uals, Utilizing JTF SEV=N SOP 205eh, "Courier Instructions", as a guide, /(o COPIEr/ MARE Toot-= wer PAGE Pr

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