The Bureau of International Organization Affairs (IO) of the U.S. Department of State advances U.S. policies and interests through multilateral diplomacy. The U.S. played a major role in the creation of the UN and other international organizations and maintains a strong leadership role in these bodies. IO works to ensure that the UN and other international organizations remain viable and effective. The IO website provides information on the agency's programs, including the model UN program, educational resources, resources on peacekeeping, international postal policy, disaster information, resources regarding the U.S. and the UN and annual reports to the U.S. Congress.

The Bureau of International Organization Affairs (IO) of the U.S. Department of State presents the text of statements made in 2001 concerning the work of the bureau. The IO is responsible for the development and implementation of U.S. policy in the United Nations and other international organizations.