The Russian NATO Advanced Research Workshop on "Scientific Problems and Unresolved Issues Remaining in the Decommissioning of Nuclear Powered Vessels and in the Environmental Remediation ofTheir Supporting Infrastructure," was held in Moscow, Russia at the Presidium of the Russian Academy of Sciences on April 22-24, 2002. This was the third in this series of North Atlantic Treaty Organization (NATO) sponsored workshops in Moscow on nuclear vessel decommissioning. The first one was in June 1995 and served to focus international attention on the problems of nuclear vessel decommissioning in Russia and elsewhere. The second one was in November 1997 and it focused on the risks associated with nuclear vessel decommissioning. Attendance at the current workshop was approximately 100 with participants form Russia, United States, Norway, France, Denmark, Germany, Japan, Korea, NATO, and the European Union. The Workshop was sponsored and funded by the Security-Related Civil Science and Technology Program of the Scientific and Environmental Affairs Division ofNATO. Within Russia, the Workshop was sponsored and supported by the Russian Academy of Sciences, Minatom of Russia, Rossudostroenie, Ministry of Industry and Science of Russia, and the Russian Navy. Within the U.S., the Workshop was supported by the U.S. Department of Energy. The sponsorship and support of all of the above organizations are gratefully acknowledged.

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Preface. Opening address; M. Barskov. Overview and Status of Issues Related to Nuclear Vessel Decommissioning and Utilization. Utilization of Russian Nuclear Submarines: Contents of the Problem, Review of the Actual Status, Analysis of the Related Risks and International Cooperation; A.A. Sariskov. Overview of the Status and Issues Related to the Decommissioning of Nuclear Vessels in Russia; V. Akhunov. Overview of the Status and Issues Related to the Decommissioning of Nuclear Vessels in France; A. Tournyol du Clos. Inactivation and Recycling of Nuclear Vessels in the USA: Overview and Status; M. MacKinnon III. Prospective on Risks Associated with Nuclear Vessels; P.L. Oelgaard. On Risks in Decommissioning of Nuclear Submarines (NS); O. Kovalevich, et al. Decommissioning and Dismantling of French Nuclear Submarines: Industrial Issues; B. Robin, A. de Buzonniere. International Cooperation in Nuclear Vessel Decommissioning and Utilization. Bilateral Cooperation Related to the Decommissioning of Nuclear Vessels between the USA and the Russian Federation Status and Issues; M.A. Baker. Military Environmental Cooperation on Radioactive and Non-Radioactive Waste in Russia's Northwest and Far East; D. Rudolph, et al. Non-Proliferation and Other Security-Related Issues Associated with the Dismantling of Nuclear Vessels in North-West Russia; O. Reistad, A. Soerlie. Experience of International Cooperation and Unresolved Issues of Utilizing Nuclear Submarines and Nuclear Maintenance Support Vessels in the Far East Region of Russia; Y. Shulgan. International Cooperation for Nuclear Submarine Disposal: Current Results and Future Prospects; N. Kalistratov. Radioecology, Radiation, and Safety Issues. System Analysis of Environmental Risks: Basic Problems and Methods of Solution; L. Bolshov, R. Aroutiounian. Analysis of the Radiation Potential of the Decommissioned Nuclear Submarines and Reactor Units; V. Barinov, et al. Improving Nuclear and Radiation Safety during the Process of Russian Nuclear Submarine Utilization; A. Kiriushin, et al. Analysis of the Radiation Risks for the Population at Different Stages of Nuclear Submarine Utilization; A. Blekher. Radiation Burden in Regions Resulting from Nuclear Submarine Handling after Decommissioning and the Existing Uncertainties in their Estimation; B. Pologikh. Automated Radiological Monitoring at a Russian Ministry of Defence Site; P.D. Moscowitz, et al. Analysis of the Radioecological Situation within Bays of Nuclear Submarine and Floating Reactor Compartment Storage; V. Danilyan, V. Vysotsky. The Forecast of Possible Radioecological Consequences and Risk of Damage to the Health of Critical Groups of the Population from Sunken Nuclear Submarines and other Radiation-Dangerous Objects on the Bottom of the Ocean; I. Lisovsky. Radiation Impact on the Environment when Handling Fuel of Dispositioned Nuclear Submarines at GMP Zvezdochka; Y. Siminovskiy, et al. Methodolgical Aspects of Assessing the RadioecologicalSituation at Contaminated Territories of Russian Naval Bases to Perform their Subsequent Rehabilitation; V. Zhernovoy, et al. Radioecological Monitoring of Defueling of Damaged Spent Fuel from Storage Facilities of Floating Shops; V. Vysotsky, et al. Issues of Novaya Zemlia Bay Rehabilitation Due to the Dumping of Radiation Dangerous Facilities; Y. Sivintsev. Ensuring Safety of Nuclear Submarines Stored Afloat after Decommissioning; S. Petrov. Possibilities of Using a Multifunctional System of Sanogenetic Monitoring to Perform a Physiological and Hygienic Survey of Different Work-Status Person