Protection and Measurements on risk-based waste classification. He is a consultant to the Blue Ribbon Commission on America’s Nuclear Future and the Nuclear Waste Technical Review Board. Mr. Croff was vice chairman of the U.S. Nuclear Regulatory Commission's Advisory Committee on Nuclear Waste and a member of the Department of Energy’s Nuclear Energy Research Advisory Committee. Mr. Croff has worked on numerous NRC committees including the Committee on Management of Certain Radioactive Waste Streams Stored in Tanks at Three Department of Energy Sites. He received his B.S. in chemical engineering from Michigan State University, an M.S. in nuclear engineering from the Massachusetts Institute of Technology and an M.B.A. from the University of Tennessee.

BART EBBINGHAUS is a project manager at Lawrence Livermore National Laboratory (LLNL) where he studies the chemical and material properties of actinides, purification by pyrochemistry, recovery from wastes, and disposition in ceramics. For a number of years he also directed the plutonium analytical and materials characterization work at the LLNL plutonium facility. He was responsible for much of the technical work supporting the plutonium pit lifetime assessment. From 2006 to 2009, he was the technical advisor to the Nuclear Counterterrorism Program, which focuses on understanding the potential impact of improvised nuclear devices. He was involved in the technical review of the Department of Energy’s Graded Safeguards Table from which the figure of merit of nuclear material attractiveness originated. He received his Ph.D. in high temperature chemistry from UC Berkeley in 1991.

B. JOHN GARRICK (NAE) is the retired CEO of PLG, Inc., an international applied science and engineering consulting firm. He recently completed a presidential appointment as chairman of the U.S. Nuclear Waste Technical Review Board. He served for 10 years (1994–2004), four years as chair, on the U.S. Nuclear Regulatory Commission’s Advisory Committee on Nuclear Waste. He has an active consulting practice in the development and application of the risk sciences to systems in the nuclear, space, chemical, environmental, and marine fields. His research interests include the quantification and importance ranking of catastrophic risks to society and the environment to support societal decision making. He has served on or chaired numerous NRC committees, including the Committee on Evaluation of Quantification of Margins and Uncertainty (QMU) Methodology Applied to the Certification of the Nation's Nuclear Weapons Stockpile; the Committee on Engineering Aviation Security Environments—False Positives from Explosive Detection Systems; the Committee on Combating Terrorism; and the Committee on End Points for Spent Nuclear Fuel and High-Level Radioactive Waste in Russia and the United States. He is a past president of the Society for Risk Analysis and received that Society’s most prestigious award, the Distinguished Achievement Award; is a Fellow of three professional societies; and was elected to the National Academy of Engineering (NAE) in 1993. He received his M.S. in nuclear engineering from UCLA and his Ph.D. in engineering and applied science from the University of California, Los Angeles.

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