The United States Mission to International Organizations in Vienna (UNVIE) works with seven major organizations of the United Nations system based in Vienna: the International Atomic Energy Agency; the UN Office on Drugs and Crime; the Preparatory Commission of the Comprehensive Test Ban Treaty Organization; the UN Office of Outer Space Affairs; the Wassenaar Arrangement; the UN Commission on International Trade Law; and the UN Industrial Development Organization, of which the U.S. is not a member. UNVIE also covers the International Institute for Applied Systems Analysis in Laxenburg, Austria.