qu> will not exceed 3.9 roentgens, General Starbird pointed cut that unforeseen weazzer changes make it impossible to guarantee thet fallout will not result in an exposure level exceeding 3.9 voemvigess. My, waurrcy said he believed thai this ievel need not be passed since testing could 5¢ halted before the 3.9 levelis reached. In answer to a question by ur. Strauss, Dr, Dunning said it would be possible to exceed the 3.9 roentgens exposure level with fail- out from a single shot, Mr, Strauss said he would cppese making any public statement on the fallout level for Operation PILGRIM which the Commission could not guarantee. Mr, ,swurray then suggesied that his proposed language not be included in the press release, but rather that it be inserted in the staff paper on Operation PILGRIm (See AEC 944/2). General Starbird pointed out that the staff paper concerning radiclogical criteria for Operation PILGRImis AEC 141/33 - Radiological Criteria for the Nevada Test Site, wir, ucCool said that at meeting 1246 on November 14, 1956, the Commission had approved the radiological safety criteria for gammma radiation set forth in paragrapa 3 of AEC 141/33 with the understanding that Vr, Libby might establish the ten year limit at a lower level chan the 10 roentgens referred to in paragraph 3b cf AEC 141/33. vr, Libby then stated that the ten year limit for radiation 2xposure should be 10 roentgens. Mr, murray suggested that sub-paragraph 3a of AEC 141/33, vhich states as the exposure limitation '‘, .. 3.9 roentgens for any one year;'’ be revised to read ‘', .. 3.9 roentgens for the anticipated est series,'' The Commissioners agreed to this revision of their xrevious decision on AEC 141/33. The Commissioners also agreed to delete from the press elease the reference to limiting fallout from Operation PILGRIM ‘o that exposures will not exceed 3.9 roentgens. The staff was equested to prepare a draft response to any inquiries received oncerning the consistency of AEC exposure criteria for peration PILGRIw with the exposure criteria recommended y the National Academy of Sciences for the total population f£ the U.S, ~ 787 -