U.S. Department of State - Bureau of Arms Control and Nonproliferation

Our Interim Mission The Bureau of Arms Control and Nonproliferation (ACN) executes the President’s America First Policy through a range of policies and targeted programs. The Bureau advances U.S. national security by preventing the proliferation of weapons of mass destruction, their delivery systems, destabilizing advanced conventional weapons, and related technologies. This includes protecting and promoting U.S. technological leadership through export controls and expanding the peaceful uses of U.S. nuclear technology. At the same time, ACN works in diplomatic fora to focus on increasing global stability, reducing the risk of unintentional escalation, preventing conflict by negotiating nuclear arms control agreements, and strengthening bans on chemical and biological weapons. Working with international partners, these efforts shape the global security environment by creating diplomatic leverage, addressing malign proliferation threats, reinforcing integrated deterrence, and strengthening U.S. economic and security leadership.