while in a fallout area. Diffioulty waz experienced in mancuvering the two shipe close enough together to obtain a trae comparison. YaG 39%s washdom gear was effective encugh in holding dom her contamination levels to permit her to be manned by a skeleton crew during the latter shots, This ws done successfully on both UNION and YANKEES, 39. Decontasin:tion of the YAGe wes a wholesale effort sup- ported by Largs ouzbera of personnel from other task group shipa. The opsratioas were carried on with the YAGs at scorings in Eniwetok é isgoon and ware essentially a large scale application of the nethots e=ployed in decontauinating the Bost Pool toate, After YANKEE an intensive decontaainution was carried out te permit the F4G crows to live aboard on the retura voyage to the United States. By 25 Nay average topside readings on YAQ 39 were dom to 7 or/hr with average interior and below deck readings ef 2 mr/hr. It wasexpected that these levels would be down te 4 mx/ar and 1 ar/hs respectively pon arrival in Pearl Harbor, ani to 3 ax/br and 0.5 ax/br upon arrival in San Francisco. YA 40's intensities were considerably highers LO ac/ir topside and 6 or/hr inside ant below decks on 25 May. In- tensities in these locations were expected to be 25 ax/hr snd 4 ar/or Feepectively at Pearl Harbor, 15 ar/hr and 2 ar/hr at San Francisco. Many Y.0 personnel had already received dosages in excesa of 309 Ry CITF SEVSN erented pernission for them to socusulete larger dorsses din order that the youage could be males Ar WL RY YaO 39 personnel were expected