CABINET PAPER—PRIVILEGED Property of the White House—For Authorized Persons Only The following points are made in relation to the Radiation Protection Guides herein provided: (1} For the individual in the population, the basic Guide for annual whole body dose is 0.5 rem. This Guide applies when the individual whole bodydses are known. Ags an operational technique, where the individual whole body population should be developed whose protection guide ~ ean 2 / doses are not known, a suitable sample of the expased *, for annual whole body dose wil! be 0.17 rem per capita ce} per year. It is emphasized that this is an operational technique which should be modified to meet special situations. (2) Considerations of population genetics impose a per capita dose limitation for the gonads of 5 rems in 30 years, Thr operational mechanism described above for the annual individual whole body dose of 0.5 rem ie likely in the immediate future to assure that the gonadal exposure Guide (5 rema in 50 years) is not exceeded. (3) These Guides do not differ substantially from certain other recommendations such as those made by the Nationpl Committee on Radiation Protection and Measurements, the National Academy of Sciences, and the International Commission on Radiological Protection. (4) The term "maximum permissible dose" is used by the National Committee on Radiation Protection INCRP) and the International Commission on Radiological Protection (ICRP). However, this term is often misunderstood. The words "maximum" and "permissible" both have unfortunate connotations not intended by either the NCRP or the ICRP. CABINET PAPER For Consideration