ne Foreword The purpose of this report is to summarize in broad outline the mission accom- plishments and the management programs of Santa Fe Operations during the period from July 1, 1950, through December 31, 1953. The report is not intended to record the full management achievement; it is intended to provide a summary which will serve as a background for understanding the complex weapons operation. + esteanne The body of the report covers three full fiscal years, to July 1, 1953. The first chapter summarizes the full report and additionally records the major actions of the next six months to January 1, 1954. To provide a better perspective, background of the 1947-1950 period is included where essential. It was considered preferable not to include a section on management projections beyond January 1, 1954, although such projections are indicated where they benefit understanding. ao| The previous report, covering SFO's first three years of stewardship, was devoted largely to the programmatic and community operations at Los Alamos. It reflected the proportion of weapons activity, and consequently of managementactivity, then centered in Los Alamos. It necessarily reflected the key importance during that period of the development of the Los Alamos community. The present report records the major expansion of development, production and test facilities which occurred after July 1, 1950. It covers the full period of the Korean War and almostthe full period of the thermonuclear development program. It covers the full period of continental tests. It records the considerable expansion of the contractor structure and the development of Santa Fe Operations Office as an operations- wide headquarters and field activity. In broad outline it covers the period of SFO building and expansion and terminates with a new period of consolidation and, in some respects, of contraction based on changed national requirements resulting to a considerable extent from SFO accomplishment. Staff directors, field managers, and key contractors have contributed to the prepa- ration of the report. In particular, Sandia Laboratory has assisted materially, the final organization, layout, and printing having been accomplished by its Document Department. fe ERE WagD)