[en] The Hanford Site currently has in storage a large percentage of the total volume of radioactive defense waste in the United States. Facilities presently operating and those planned in the future continue to produce high-level, low-level, and transuranic (TRU) waste that will require final disposal. The waste types and compositions vary widely because of the many diverse processes operated at Hanford since the early 1940's. This diversity results in an extensive interim management program and complex final disposal operation. The Defense Waste Management Plan (DWMP) (DOE, 1983) describes the national policy set forth for disposal of defense waste. The Interim Hanford Waste Management Plan (HWMP) (DOE, 1986a) expands on the Hanford portion of the DWMP and provides a proposed reference plan for the safe management and final disposal of existing and future wastes. Waste at Hanford is divided into six categories to identify the optimum disposal method for each, including single-wall tank waste, double-wall tank waste, contaminated soil sites, stored and new TRU solid waste, solid waste burial sites, and encapsulated byproducts, Cesium and Strontium. Highest priority is given to disposal of double-wall tank waste to minimize the need for new tank construction and dispose of future wastes as quickly after their production as practical. Stored and new solid TRU wastes are next in priority. Established national policy has already identified the Waste Isolation Pilot Plant (WIPP) for the potential disposal of TRU waste. Hanford disposal plans are being formulated to fit within the scope of the national policy. Single-wall tank wastes, contaminated soil sites, solid waste burial sites, and byproduct capsules are currently monitored and are considered to be stable and safe for several decades or longer