Office of Spent Fuel and Waste Science and Technology, U.S. Department of Energy Office of Nuclear Energy Office of Spent Fuel and Waste Science and Technology, US DOE Office of Nuclear Energy Office of Spent Fuel and High-Level Waste Disposition Office of Disposal R&D, US Department of Energy Office of Nuclear Energy Office of Spent Fuel and High-Level Waste Disposition Office of Disposal R&D, United States Department of Energy Office of Nuclear Energy Office of Spent Fuel and Waste Science and Technology