--% . ~ . MRoe“ ae et le -————— ~enge -o ee Col, Huston reviewed the report and recommendations of the NPG —— Nevada Proving Grounds Committee, The recommendations included: (1) restriction of the number of nuclear shots in any 12-month period to a planning maximmof 10 to 153 . (2) each shot to be justified individually as to technical necessity and « probable off-site hazard; (3) shot sizes to be less than 1 KT for surface or‘ubsurtact , 25 KT for '300-foot towers, 50 Kr for 500-foot tower, “go KT for airdrop | (f4reball not to touch the ground). a brs Claus quoted trom a letier trom ine ¢ ‘Biology and Medicine Advisory Cémmittee to Mr, Murray which recommended a planned maximum of 10 shots in any 12-month period. ) . | Mr. Murray expressed the strong belief that the NPG should continue to be used, He felt it important that no indication|of hesitation be given; any such indication would endanger ‘the’ continued use of the site. The Committee considered the recomendations about the NPG to be « sound with the exception of the 10-shot limitation. There seemed no rational basis for selecting this as the maximum number, Dr. von Neumann felt it would be best not to prescribe a limiting number, but rather to consider each proposed shot per se. DOE ARCHIVES At 4:10 p.m, the visitors left except for Dr. Froman, Mr. Murray, Dr. Claus and Dr. Dunham. Dr. Froman made a number of comments about the FE Castle Tests shots and their implications. sO Los Alamos was recommending cancellation of the QRBMBJtest, and proposed to fire a + a = -ybest containing no tritium a