on exposure of whole body and bone for all living patterns, and those living JANET would have to import most foods to avoid exceeding a whole body exposure of 4 rems in 30 years. Population dose guidelines used by the Task Group include annual dose rates as well as 30 year integrals for genetic doses. Appendix IV provides a detailed description of the calculations leading to estimates of maximum annual exposure for the critical organ of the segment of the population expected A detailed assessment of dose was made to receive the highest exposure. considering dietary changes that can be expected to occur with time and with age as these would influence dose to the fetus, the newborn, to ‘children, and to adults. Estimates are developed both for persons who are adults when they return and for children born after return of their parents to the Atoll. Dynamic situations were evaluated such that exposures in the highest year are predicted. These estimates are not therefore average ammaen dD GunVo. ven laann Woes co annttianablA appaltcaoa.c arene OVO a 2 nawt nad poesleo Af of ttean wore yg nnd Gere anwannewrad CUPCSUToo tn lh athar Ole oe years should be lower than the predicted dose. Conservative values have been selected for variables in models for assessment of expected doses. Though conservative, the estimates are not considered ultra conservative and do not constitute the theoretical maximum credible or worst case exposure. These conservative estimates of expected maximum annual exposure presented in Appendix IV are considered by the Task Group to be applicable to individuals in the Enewetak population, There will be few persons within this population at any one time who are fetus, newborn, or infants, believed to be the most sensitive members. Therefore, the predicted exposures are judged suitable for comparison with FRC exposure guides for individuals within an exposed population. Tables 3 and 4 show estimates of the maximum annual whole body and bone dose. 3