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A key starting point for material management and minimization is reducing the civilian use of and demands for weapon-grade nuclear material. The Office of Conversion works around the world to convert, or verify the shutdown of, civilian research and test reactors that use or produce weapons-usable nuclear material to materials not of proliferation concern. In support of this, the Office of Conversion works to develop and qualify new fuels and technologies to support conversion efforts domestically and abroad. Additionally, the Office of Conversion works with international isotope producers to convert them from the use of HEU to low enriched uranium (LEU) targets and accelerates the establishment of reliable supplies of the medical isotope Molybdenum-99 (Mo-99) produced without HEU in the United States.

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