This report summarizes the results of a cost-effectiveness analysis of protective actions following a low-level deposition of radionuclides. The media contaminated were land, property, water supplies, persons, and biota. The end products of the investigation of such phase are dose and costs associated with dose reduction techniques. The mechanisms by which radionuclides may be taken up by humans were modelled, and control technologies (protective actions) which result in a reduction in the dose were defined. With the exception of Phase VI, the consequences were expressed as the 100-year collective dose commitment equivalent, in person-rem. In Phase VI, the dose calculated was the dose equivalent, also expressin in person-rem. The dose commitment is defined as the sum of all doses to individuals over the entire time period that radioactive material persists in the environment in a state available for interaction with humans. There are two time periods involved, (1) the intake period, during which radionuclides are taken up by humans, in this study taken to be 100 years, and (2) the time interval over which the dose rate is integrated, which was seventy years. The collective dose commitment is obtained by integrating the individual dose commitments over the affected population.