A new estimate totaling slightly more than $6,500,000 and based upon the criteria thus established was submitted for discussion purposes, and agreement was reached on the limited scope of activities for Jobs 4 and 5 late in October of 1950. By January of 1951, however, it was apparent that the operational philosophy which sharply limited support activities would have to be abandoned, New requirements for support by H & N forces were being imposed, The four-detonation program, the first shot scheduled for Runit, was finally frozen, and the population levels which could be expected during the operational period were reasonably firm. Thus, at this late date, the magnitude of H &N activities under Job 4 and Job 5 was clear to all concerned, and definite planning was possible along the lines anticipated at the time of the submission of the eight and one-half million dollar estimate in July of 1950. It might be noted that the actual costs incurred as of June 30, 1951, on Job 4 and Job 5 were $5,844,512 and $2,414,572 respectively. MOBILIZATION In the light of the planning difficulties discussed above, the mobilization of a flexible organization to meet the wide variety of requirements imposed was not a simple task, It must be remembered that the requirement existed that all personnel be "Q" cleared prior to the operational period, This placed a long range limitation on any mobil- ization effort which is evidenced by the fact that it was ultimately necessary to relieve the security requirement with respect to approximately thirty H & N personnel for whom complete security clearances were not available at the operational deadline date, In addition to manpower considerations in the mobilization effort for the support program, it was necessary to bear in mind that a wide variety of skills would be required. Furthermore, to afford flexibility, anticipation of the peak demands for personnel in each category was necessary, and materials and equipment availability for support activities under Jobs 4 and 5 was an additional factor to be considered in the mobilizationeffort. Q CE . At the end of 1950, it was apparent from the fact that a great number of scientific groups would require support by H & N personnel in connection with experiments that a firm procedure for screening and establishing priority on Job 5 Work Orders would be required. Such a procedure was cooperatively established by AEC and H & N personnel at the Jobsite and provided that: 1. 2. Work Orders were to be initiated by the scientific group requiring labor or materials. Work Orders would be channeled through the AEC Resident Engineer for approval and determination of the relative urgency of the work. 17=3