The Society of Toxicology (SOT) has learned of the passing of Paul Mushak on February 2, 2016. From 1992 until his death, he was a co-principal in PB Associates, a toxicology consulting firm. Earlier in his career, Dr. Mushak was on the faculty of the University of North Carolina School of Medicine, Department of Pathology, from 1971–1985, and he was an adjunct professor from 1985–1993. From 1995–2010, he was a member of the Montefiore Medical Center-Second Medical University of Shangai, China Collaborating Centers for Prevention of Childhood Lead Poisoning and a visiting professor of Pediatrics Environmental Health, Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York. He joined SOT in 1993 and was a member of the Ethical, Legal, and Social; Metals; and Risk Assessment Specialty Sections and the North Carolina Regional Chapter.