[en] The Czechoslovak conception of radioactive waste disposal does not, with regard to the specific geographical conditions of the territory, consider the problem of processing and disposal of high-level radioactive wastes from spent fuel reprocessing. Under an inter-governmental agreement with the USSR, spent fuel will be transported for reprocessing to the USSR after temporary storage on Czechoslovak territory. Technological processes and equipment developed in Czechoslovakia or within CMEA will be used for processing, transportation and disposal of radioactive wastes from nuclear power plants. It is envisaged that wastes will be disposed of in underground concrete tanks in regional disposal sites at Dukovany and Mochovce. A brief characteristic is presented of the six main research and development tasks which are either already under way or are being prepared. They include the problem of the decommissioning of the A-1 nuclear power plant whose first stage is planned for the years 1981 - 1987 and the second for 1988 - 1991. It is stated that the economic and technical parameters of present solutions of radioactive waste processing and disposal are rather low; the solutions are relatively simple and yet implementation is very slow. In this sense a more comprehensive approach will have to be taken in the future which will have to lead to a reduced quantity of wastes, increased efficiency of equipment, reduced costs and especially to increased safety of all operations with radioactive wastes. (Z.M.)