Mary Elizabeth Hoinkes is the General Counsel of the U.S. Arms Control and Disarmament Agency. Her responsibilities include the drafting, negotiation and interpretation of arms control and nonproliferation treaties and agreements; and provision of legal counsel to the Director on all matters pertaining to the Agency's activities. The major portion of her time is devoted to issues involving nuclear weapons, anti-ballistic missile defenses, nuclear testing, chemical and biological weapons and efforts to prevent the proliferation of weapons of mass destruction.

From November 1981 to July 1985, Mrs. Hoinkes served as Deputy Assistant Director for Multilateral Affairs of the Agency. In this capacity she dealt primarily with chemical weapons, outer space arms control issues, nuclear testing and conventional weapons -- issues addressed in the Committee on Disarmament, The First Committee of the UN General Assembly, the Negotiations on Mutual Balanced Force Reductions and the Conference on Security and Cooperation in Europe. In addition to her work in ACDA, since 1983 Mrs. Hoinkes has served as a Member of the Board of Appellate Review of the Department of State, to which appeals from Department of State final decisions (primarily regarding loss of U.S. nationality) are taken.

Prior to joining ACDA in November 1981, Mrs. Hoinkes held the position of Deputy Assistant Secretary of State for Environment, Health, Food and Natural Resources. In 1980 Mrs. Hoinkes was elected Chairman of the Economic Commission for Europe's Senior Advisers on Environmental Problems and Vice Chairman of the OECD Environment Committee, positions which she held until taking up duties with ACDA.

Mrs. Hoinkes joined the Department of State in 1976 and served as Assistant Legal Adviser for Oceans, Environment and Scientific Affairs from 1977 to 1979. From 1969 to 1976 Mrs. Hoinkes was an official of the International Labor Organization at its Geneva headquarters and its Washington Branch Office, of which she was Assistant Director.

From 1965 to 1969 Mrs. Hoinkes was engaged in the private practice of law in Washington. Mrs. Hoinkes is a graduate of Randolph-Macon Woman's College and undertook her legal studies at the University of Virginia and the George Washington University, from which she received her JD in 1965. She is a member of the Board of Trustees of Randolph-Macon Woman's College and a member of the Council on Foreign Relations.