see phases of the operation, cellent, Over-all efficiency was felt to be ex- Supplies, equipment, and personnel were adequate to ace complish the assigned mission. XIV. SECURITY With the activation of JIF 132 in August 1951 the security section of the Scientific Task Group continued in the same capacity as with Operation GREENHOUSE as the AEC-NME Test Security Branch, SFOO. In November 1951 the Fniwetok Field Office was es~= tablished by SFOO and was assigned the responsibility for AEC Security for the Pacific Proving Grounds. In Jauary 1952 the AFC-NME Test Security Branch, SFOO was converted into the Security Branch, Eniwetok Field Office, It was established with the Chief and one Security Assistant of the AEC-NME Test Security Branch being transferred to the Eniwetok Field Office Security Branch. In February 1952 two other Assistants were assigned to the Eniwetok Field Office ari a Military Deputy, J-2, was assigned to TG 132.1, Los “lamos. lhe security program associated with the construction phase of Operation IVY at the Pacific Proving Grounds was under the direction of the Security Branch, Eniwetok Field Office. In this connection it was necessary from Decerber 1951 through November 1952 to secure 182 "Q" Clearances for employees of Holmes and Narver. The Los Angeles Security Branch was responsible for the oe eae COPIED/D0E LANL RC - - 7h - J