Dr. Charles Geraci is the Associate Director for Nanotechnology at NIOSH. He provides overall strategic guidance to the Nanotechnology Research program at NIOSH and is recognized internationally for his leadership in the field. Dr. Geraci has over 40 years of Industrial Hygiene practice experience that has included the federal government; in consulting; and in private industry, where he was an Associate Director for HS&E at Procter & Gamble. He earned a B.S. in chemistry from the University of Cincinnati and a Ph.D. in chemistry from the Michigan State University. Dr. Geraci is certified by the American Board of Industrial Hygiene in both the Comprehensive Practice and the Chemical Aspects of Industrial Hygiene. Dr. Geraci was elected as a Fellow of the American Industrial Hygiene Association in 1999, and in 2015 he received AIHA’s Edward Baier Technical Achievement award. He has authored or co-authored many of the papers that have helped set the direction for proactive thinking in nanotechnology safety and health, including the NIOSH document “Approaches to Safe Nanotechnology”. Dr. Geraci is co-author on three of the top five of the Journal of Occupational and Environmental Hygiene’s “most cited articles’ between 2013 and 2016. He serves as a subject matter expert on various national and international panels and advisory boards, including representing NIOSH on the US National Nanotechnology Initiative and the Sub-Committee on Advanced Manufacturing.