[en] An evaluation of present options to handle and store spent fuels from nuclear power plants is presented. Alternative of complementary options should be considered, e.g., transmutation, a method to transform long-lived nuclei into short-lived or less radiotoxic nuclei. Neutron appears as the ideal particle to induce these transmutations, called transmutation or incineration depending on the main route, capture or fission, resp. An overview of and technical options for transmutation are discussed in detail. (R.P.) 45 refs., 4 figs., 2 tabs