American Flag
Bureau of International Security and Nonproliferation

Office of Multilateral Nuclear and Security Affairs

Our Mission

The Office of Multilateral Nuclear and Security Affairs leads Department of State formulation and implementation of U.S. policy relating to the global nuclear nonproliferation regime, especially the Treaty on the Non-Proliferation of Nuclear Weapons, the NPT review process, Nuclear-Weapon-Free-Zone treaties and protocols, and nuclear-related security assurances.

U.S. Department of State

Welcome to the new State.gov

Our new design makes it easier to find and learn about the State Department’s programs and services—from passports and visas to learning how U.S. diplomacy benefits the American people.