Pueblo Chemical Depot
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United States

The U.S. stored its chemical weapons at eight U.S. Army installations within the Continental United States (CONUS). The stockpiles were maintained in exclusion zones at the following Department of Army installations (the percentages shown are reflections of amount by weight): Tooele Army Depot (TEAD), Utah (42.3% of total stockpile); Pine Bluff Arsenal (PBA), Arkansas (12%); Umatilla Depot Activity (UMDA), Oregon (11.6%); Pueblo Depot Activity (PUDA), Colorado (9.9%); Anniston Army Depot (ANAD), Alabama (7.1%); Aberdeen Proving Ground (APG), Maryland (5%); Newport Army Ammunition Plant (NAAP), Indiana (3.9%); and Blue Grass Army Depot (BGAD), Kentucky (1.6%). The remaining 6.6% was located on Johnston Atoll in the Pacific Ocean.

Currently stockpiles have been eliminated at Johnston Atoll, APG, NAAP, UMDA,[29] PBA[30] TEAD.,and ANAD.PUDA will begin elimination during FY 2015, and complete in FY 2017.BGAD will be last to complete this elimination which tentative dates have not been set.

The U.S. policy on the use of chemical weapons is to reserve the right to retaliate. First use, or preemptive use, is a violation of stated policy. Only the president of the United States can authorize the first retaliatory use.Official policy now reflects the likelihood of chemical weapons being used as a terrorist weapon
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