Effective April 1, 1999, the Arms Control and Disarmament Agency (ACDA) was merged with the State Department in accordance with the Foreign Affairs Agencies Consolidation Act of 1998. Please note that the permanent record of the last ACDA web site will be preserved under the electronic federal depository maintained by the University of Illinois Chicago (UIC).

The missions of arms control, nonproliferation, and political-military affairs will be under the policy oversight of the Under Secretary of State for Arms Control and International Security, who will also serve as Senior Adviser to the President and the Secretary of State on Arms Control, Nonproliferation, and Disarmament. In the capacity of Senior Adviser, the Under Secretary will be able to communicate with the President through the Secretary and will participate in meetings of the National Security Council on arms control,
nonproliferation and disarmament. Five bureaus in ACDA and State will be reduced to three -- the Bureaus of Arms Control, Nonproliferation, and Political Military Affairs -- for which the Under Secretary will exercise policy oversight. 

The foreign affairs reform and restructuring initiative, which involves USIA and AID as well as ACDA, was announced by the President on April 18, 1997, following consultations with the Congress. A detailed reorganization plan was submitted to the Congress in December 1998 (revised in March 1999), designed to enhance the ability of the United States to meet the international challenges of the next century by placing arms control and nonproliferation, public diplomacy, and sustainable development at the heart of our foreign policy. (For more information, see reorganization section of web site.)

The integration of ACDA and State combines ACDA's unique negotiating, verification, and technical expertise with State's broad diplomatic expertise and regional experience and thus strengthens policies on arms control, nonproliferation, and other politcal-military affairs. Integration has been carefully designed to establish a structure within State that will preserve unique arms control and nonproliferation perspectives.