National Bureau of Standards, Washington, D.C. and Boulder, Co orado. Seven civilians participated in TG 7.1, and NBS participat d in Projects 7.1 and 7.2. No NBS personnel cited in the project r ports are on the TG 7.1 Consolidated List. This is understandable fa r Project 7.2 as it was offsite, but is not clear for Project 7.1, fe r which NBS had stations on Eneu and Runit. Public Health Service, Washington, D.C. One civilian with a iF (0.001- to 0.5-R range) exposure. Military personnel with AEC contractors participated in TG 7.1 as listed below. American Car and Foundry Co., Albuquerque, New Mexico. One mi Ltary who worked on fabrication of weapon components was Listed from Fhis contractor organization. He was an Air Force officer and his HOsimetry is in Table 86 as well as combined in Table 90. Applied Fisheries Laboratory, University of Washington. Five c vilians worked on a longrterm survey of radiological contamination flora and fauna. n atoll They took part in the Rongelap and Ronger ik re- surveys in March following BRAVO. Cambridge Corporation, Denver, Colorado. TU 13, providing specialized services. This organization par ticipated in After the cancellat ECHO event these services were not required, and its person on of the el left the PPG in April. Edgerton, Germeshausen & Grier, Boston, Massachusetts. the affiliation for two Air Force personnel. EG&G wa given as EG&G provided timing and firing electronics and technical film coverage. Exposures re given in both Table 90 and Table 86. Herrick L. Johnson, Inc., Columbus, Ohio. materials as TU 2. This contractor prod Its personnel left the PPG after the ca of the ECHO event as these services were no longer required 405 ed special ellation