Daniel Nebert, MD, emeritus professor, Department of Environmental Health, UC College of Medicine, and a member of the Center for Environmental Genetics, was awarded the 2016 R.T. Williams Distinguished Scientific Achievement Award. This prestigious award is presented by the International Society for the Study of Xenobiotics (ISSX) to an individual who has made influential scientific contributions to the field. Nebert has dedicated his research and contributed revolutionary discoveries to the field of xenobiotics for more than 50 years. More information on Nebert and the 2016 R.T. Williams Distinguished Scientific Achievement Award is available online.