Each chapter in this publication takes up a specific issue, analyzes its importance to the United States, discusses its evolution in the international negotiating process, and considers the various policy options in the context of the treaty making exercise. The criteria for evaluating policy options are included. The eight chapters are: (1) The Evolving International Ocean Regime; (2) The Third U.N. Conference on the Law of the Sea; (3) National Security; (4) Commercial Navigation; (5) Marine Environment; (6) Fisheries; (7) Mineral Resources; and (8) Marine Science. The appendices include a chart of legal and geographic definitions, a glossary, a list of selected events, and a selected bibliography. (RH)