the program, The normai procurement and shipping time on materials was three to four months. Realizing that this had to be shortened for stations which were designed iate in the program, it was necessary to take unusual action in all phases of the supply process. In many cases, changes were received too late to be incorporated during the initial fabrication, but it was possible to re—fabricate at the jobsite without any serious loss of time. In moving to Bikini Atoll, where the then existing survey data were inadequate, it was necessary to set up an extensive horizontal control network covering all major islands of the atoll. Survey work was started early in the program ard its progress required a considerable amount of brush and tree clearing on most islands as well as the rather difficult feat of establishing a rigid control point in mid~lagcoon. As critical need arose for certain classifications, security clearances became a problem particularly with respect to the long investigating and processing period that was required before an — applicant or employee's servizes were available to the project. Such problems were resclved through liaizon with tne Los Angeles office of the AEC and the security section cof the office cf the Eniwetox Field Manager. Quarters, facilities, and services were operated by H&N to house, sustain, and support all perscnnel of JTF SEVEN, except those who lived on Eniwetok and abeard naval vessels, To accomplish this, temporary camps at Eninman, Namu, Romurikku, and Enyu, at Bikini Atoll and Biijiri at Eniwetok Atoll, were provided and the permanent 105