Since 1992 he has served as the Director of the Rocky Mountain Poison and Drug Center at University of Colorado hospital in Denver, CO, USA. He is the Executive Director of Researched Abuse, Diversion, and Addiction-Related Surveillance (RADARS®) System. He has published more than 250 scientific papers as well as served as editor for several books. In 2002 he was recognized with a special citation from the Commissioner of the U.S. Food and Drug Administration. Dr Dart currently serves as a Deputy Editor of the medical journal Annals of Emergency Medicine and is past-president of the American Association of Poison Control Centers.