R. Scott Stricoff is Vice President of Safety and EnvironmentalHealth for Arthur D. Little, Inc. as well as a Certified IndustrialHygienist and Certified Safety Professional. He earned a bachelor'sdegree in chemical engineering from MIT and an MBA fromNortheastern University. Mr. Stricoff is the author and coauthor ofnumerous publications in the field of occupational health andsafety.

Douglas B. Walters, PhD, is the Head of Laboratory Health andSafety in the National Toxicology Program of the National Instituteof Environmental Health Sciences. Dr. Walters earned his doctoratein chemistry from the University of Georgia and is a CertifiedSafety Professional. He is the author of Health and Safety forToxicity Testing and Safe Handling of Chemical Carcinogens, as wellas numerous health- and safety-related publications.