a yearly average of 0.170 rem per person. The predicted dose equivalent rate of 0.020 rem per year is nearly a factor of ten below this reconmmended limit. The NCRP also recommends a whole body dose equivalent linit of 0.5 rem in any one year, in addition to natural radiation and medical and dental exposures, for any individual making up the population. An individual with maximum exposure at Enewetak is not expected to receive more than three times the dose equivalent rate for the average person (0.020 rem per year); accordingly, the NCRP whole body dose equivalent limit for an ihdividual is as unlikely to be exceeded as is the limit for the population as a whole. With respect to organs other than the whole body, the NCRP does not explicitly recomend dese’ limits for members of the public not occupationally exposed. The International Commission on Radiological Protec- tion (ICRP) has in the past, however, recommended that annual dose rates to specific organs be listited to one-tenth of the corresponding annual occupational maximum permissible doses. Similar guides appear in international standards for the design and operation of radiation sources. The NCRP recormends 15 rem per year as a maximum permissible dose equivalent to bone for occupationally exposed individuals. A derived dose equivalent limit to bone for an individual not occupationally exposed then is 1.5 rem per year, exclusive of dose from medical exposures and natural radiation. An individual with maximum exposure at Enewetak is not expected to receive sore than 0.6 rem per year to bone (three times the dose equivalent rate for the average person); accordingly, the presuned limit for dose to bone will not be exceeded. The estimated doses to people abiding by the post-Cleanup lifestyle assume no contribution from exposure to radioactive debris. A major endeavor of the cleanup Was to locate, monitor and remove debris to assure that no radioactiwe debris was left to produce unexpected doses. The debris search included extensive vegetation clearance and extended to underwater searches by scuba divers. An indication of the diligence given to this effort is the fact that some 16,000 rounds of ordnance residual from World Way JI were removed. This ordnance had gone unnoticed by thousands of persons who utilized the atoll during the nuclear weapons test period. Radioactive debris found was made unavailable by sealing it in concrete on the quarantined island. It is now considered almost impossible for any residual debris st Enewetak to distort the predicted low doses. Expectations are that the restrictions to apply at Enewetak can be lifted in the future as the wajor amount of radioactivity currently present disappears through radiodecay and weathering. The presence of transuranic elements in Enewetak soil, especially the very long-lived alpha radiation emitters of plutonium and americium, was considered as a possible deterrent to the eventual lifting of all restrictions. The inhalation of air containing transuranic elements resuspended from the 5 4 Poof ip kh wea de us g