Transuranic waste

Transuranic waste is defined as:

Waste containing more than 100 nanocuries of alpha-emitting transuranic isotopes per gram of waste with half-lives greater than 20 years, except for high-level radioactive waste... All TRU elements are heavier than uranium, have several isotopes, and are typically man-made. Key radionuclides found in TRU waste include americium-241 and several isotopes of plutonium.

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There is currently only one place in the United States accepting shipments of TRU, the Waste Isolation Pilot Plant (WIPP). Other countries do not include this category, favoring variations of High, Medium, and Low Level waste.