results which, however, have 1..t heen serious. There was some discussion of the finding of Co-60, PACIFIC OCEAN SAMPLING (continued ) Zn-65 and Fe-59 in marine materials. DR. SEYMOUR concluded by describing the two-volume report of the Japanese data recently published by the English. MR. JEROME TAPE of the Brookhaven National Laboratory was then introduced to tell of the reactor hazards study under way at Brookhaven. He spoke of its initiation as a result of a request by the Joint Committee for information. The purpose of this report is to determine as nearly as possible what the damage would be in case a reactor BNL REACTOR were to be involved in a serious disaster. The problem has been based upon two possibilities; one, STUDY as a runaway in which all of the fission products are contained within the sealed building and the other, is the case in which there is a breach of the container by which all of the fission products escape. The final report of this study will be ready by January 1, 1956 but much of it will probably be in the nature of suggesting further studies. DR. DUNNING was then asked to present the proposed offsite radiation levels for weapons testing. NEVADA OFFSITE RADIATION LEVELS He distributed the staff paper (141-33) which presents the figures given to the ACBM at the last meeting. DR. DUNNING expressed the opinion that the weapons group can conduct the necessary tests within the limits of these criteria. DR. DUNHAM asked that the recommendations be considered by the Committee. After a brief discussion, it was moved that a statement be prepared and sub- mitted as follows: Tae trend in thinking of the International Commission on Radiological Protection, The National Committee on Radiation Protection, and the National Academy of Sciences is toward more restrictive criteria for standards of radiation protection. In light of the above, it is recommended that radiclogical safety criteria for exposures to gamma radiation from fallout to populations around il -