9. In consideration of the limited housing facilities available, and the desire to accommodate the maximum number of observers consistent with over-riding operational requirements, the five day limitation is necessary for use as a general rule, However, in view of the weather delays which will undoubtedly be encountered, it is understood that CJTF-7 intends to temper the application of this rule in the cases of VIP as appropriate, 10. By letter dated February 9, 1956 (AEC 787/16) the Deputy Secretary of Defense advised the Commission of DOD plans to invite 15 foreign observers to the tests and stated that dissemination of atomic information to these observers would be within the provisions of Section 14M of the Atomic Energy Act of 1954 and subject to the appropriate procedures pertaining to the necessary joint determinations required by Section 144b, The attention of the Commisssion is invited to their previous actions in matters of this nature. In previous cases the Commission has approved the transmission of certain specified information on fission weapons, but has refused to authorize the transmission of any information on thermonuclear weapons, The Office of the General Counsel advises that permitting foreign nationals to ‘observe the shots from the controlled area may involve the communication of Restricted Data to them within the meaning of Section 144%b, However, the proposed observers in this case are representatives of Canada and the U. K,, which have bilateral agreements under Section 144b that permit the exchange of certain Restricted Data, including yields and effects information, To the extent that the test information revealed te them comes within the exchangeable topics and does not in the joint judgment of AEC and DOD reveal important information concerning design or fabrication of the nuclear components, communication would not be prohibited by the 1954 act, It is proposed therefore that Appendix "a"

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