A stockpile of obsolete chemical weapons stored at the U.S. Army Pueblo Chemical Depot (PCD) since the 1950s has been safely eliminated. The final round of the stockpile was safely destroyed June 22, 2023. Destruction operations in Colorado began in March 2015, with more than 2,613 U.S. tons of chemical agent destroyed. DTRA provided DoD host team leadership and DTRA national escort team oversight for the Organization for the Prohibition of Chemical Weapons (OPCW) inspections. The OPCW maintains a permanent presence at the facility and fulfills U.S. obligations under the facility agreements. DTRA has provided continuous oversight ensuring both U.S. and OPCW treaty rights are observed.
To learn more about the destruction process, see the U.S. Chemical Weapons Stockpile Destruction 2023
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