Arms Control and International Security
The Office of the Under Secretary of State for Arms Control and International Security serves as senior adviser to the president and the secretary of state for arms control, nonproliferation, and disarmament.
Contact
Contact the Office of the Under Secretary of State for Arms Control and International SecurityPhone number
1-202-647-4000
TTY
1-800-877-8339
Main address
U.S. Department of State2201 C St., NW
Washington, DC 20520
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