“BUR Lg Beadquartere Task GROUP 7.4, PROVISICMAL United States Air Foree APO 187, San Franciseoo, California mw 1 Fut 1956 SUBJECT: Radiation Exposures for Certain Task Group 7,4 Men Tor Coumander Joint Task Joree SEVER APO 437, 6an Franciseo, California 1. Paragraph 6a of Appendix 1 te Annex K to JTF-SEVES Operstica Order Ho. 1-58 establishes « maxim permissable exposure (NPE) of 5.0r for personnel participating in MARDTACK. We find that adherense te this limitation througheut the lengthened MARDTACK serice, among twe small groups of eur Task Group 7.4 men, would jeopardise the successful performance of our moclear eloud sampling mission, These two groups ef © men are the fifteen (15) CO's and airmen of the buclear Applications Section of our Cloud Sampling Klement, ami the fifty-five (55) 3-573 ground crewmen in the same element (ground crewmen of the B-57D's are being rotated ty €4C). Inciosure #1 is a listing of the nanbere of the former group together with the expesure ef eagh ef the individuals as of 27 dune 1958. Inclosure #2 is a similar listing ef the second group. 2. It is requested that MPS's ef 10.0r ant 8.0r be established 3. We in Task Group 7.4% are eonseious of our responsibility te for the men listed in Inelosure 1 and 2 respectively. limit the rediation exposure ef eur msn to an absolute minimus esasistent with the need to get eur job dom. 2 Inels 1. Roster/NOO ' efimns (MWaclear Applications) 2, Roster/3-57B Grnd Crew. fermen ne, WB. KIZFFER Colonel, OSAP Commander SB ee OH eg . ~ ae re oon US Se : CA ap Sat! Swe a