Dr. Jeffery A. Steevens is the Senior Scientist (ST) in Biotechnology for the US Army at the US Army Engineer Research and Development Center in Vicksburg, MS. He obtained his bachelor’s degree in biochemistry from the University of Missouri at Columbia in 1994 and his doctorate degree in pharmacology and toxicology from the University of Mississippi in 1999. His research activities include risk assessment and management of contaminated sediments, bioavailability and biological effects of military-relevant materials (e.g., explosives, nanomaterials, metals). One of his current responsibilities is leading a multi-disciplinary ERDC research cluster focusing on the fate, transport, and toxicology of advanced materials in Army technologies. In addition to his research on nanomaterials, he has been a technical advisor to the World Bank on international projects, EPA Superfund Program, and provides expertise on many contaminated sediments projects throughout the U.S. He has co-authored the International Atomic Energy Agency (IAEA) guidance for placement of radionuclides at sea for compliance with the London Convention 1972. Dr. Steevens has actively published the results of his work and has over 60 peer-reviewed journal publications and 20 book chapters and technical reports. He is an active member of several national organizations including the Society of Environmental Toxicology and Chemistry (SETAC), American Chemical Society (ACS), American Association for the Advancement of Science (AAAS) and Society of Toxicology (SOT). Jeff is a Technical Advisor for nanomaterials work group for the Chemical and Material Risk Management Directorate (CMRMD), Office of the Deputy Under Secretary of Defense. Currently he is a member of the Nanotechnology Environmental and Health Implications (NEHI) workgroup of the National Nanotechnology Initiative (NNI).