[en] A large portion of the irradiated nuclear fuel stored at VKTA facilities stems from the operation of the Rossendorf-based reactors, such as the RFR, RRR, and RAKE, or from the fuel processing activities in the AMOR facilities (Rossendorf installation for molybdenum production). As a result of the decision to shut down the three reactors and to decommission some part of the AMOR facility, a plan is to be established for the disposal of the spent fuel or the further utilization of the irradiated fuel inventary. In order to prepare the necessary plans for ultimate disposal, interim storage at the VKTA, and the related transport activities including assessment of risks during transport, the paper in hand establishes fuel characteristics covering the following information: mass distribution (concentrations) of actinides and fission products, activity levels of actinides and fission products, neutron sources and gamma sources, thermal conditions, gamma radiation levels. (orig.)