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U.S. releases updated plutonium inventory report

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WASHINGTON, D.C. – The National Nuclear Security Administration (NNSA) today announced the public release of a report that details the current plutonium inventory of the U.S.

Titled the United States Plutonium Balance, 1944-2009, the document serves as an update to Plutonium: the First 50 Years, which was first released by the Department of Energy (DOE) in 1996.

The report provides the U.S. inventory of plutonium owned by DOE and includes material in the possession of the Department of Defense (DoD). It can be found online at nnsa.energy.gov/plutoniuminventory.

As an update to the report released in 1996, the current document provides data on the plutonium inventory through 2009.

The updated report does not account for highly enriched uranium (HEU), planned disposition activities at the Mixed Oxide Fuel Fabrication Facility, or material obtained through President Obama’s four year plan to secure vulnerable nuclear material around the globe.

The report contains important revisions to previously reported data. The most significant revisions include increases in waste estimates for DOE sites in both Washington and Idaho, based on improvements in waste characterization and reviews of historical records.