3. Approved Work Orders were to be forwarded by the AEC Resident Engineer to the H & N Resident Manager's Office for assignment to the proper department within the H &N organization and authorization to proceed, 4. Copies of Work Orders and Authorizations were to be forwarded to interested departments and divisions including the department responsible for the work, the Fiscal Division, and others as required, The processing procedure from the preparation of the initial request by the User to scheduling by the responsible H & N department, as illustrated in Figure 17.1 normally took approximately half of a day. Urgent orders were handled orally and were followed by confirming paper work. During the operational period, 1,123 Job 5 Work Orders were executed, involving the expenditure of approximately 286,680 manhours. These Work Orders are tabulated at the end of this section, The variety of requirements in terms of types of materials and classifica- tion of labor reflected in the 1,123 Work Orders processed is shown in Table 17-1, and an analysis of Users by programs is presented as Figure 17-2, It should be noted, as well, that a portion of the support services rendered included roll-up activities such as the recovery, cleaning, packing, and shipping of instruments and similar tasks related to putting the experimental portion of the Proving Ground into standby condition. The total costs involved in the support and roll-up program (Job 5) to June 30, 1950, were $2,414,572.20, of which $668,517.26 was attributable to Scientific Programs 2, 3, 4, 5, » 7, and 8, 17-4