In 2014, the Tucson Fire Department (TFD) partnered with the University of Arizona through a Federal Emergency Management Agency research grant to investigate firefighter exposures to carcinogens. The study identified carcinogenic exposures and toxic cellular effects in firefighters and is currently evaluating the effectiveness of interventions designed to reduce carcinogenic exposures and, therefore, the risk of cancer. The instructor explains the nature of the study and the roles of the participants, particularly the baseline tests involved; the results of some of these tests; exposure, prevention, and contamination-reduction protocols and policies the TFD implemented; and the firefighter education programs added. Study results so far suggest that interventions post-fire can decrease decrease exposures, as shown in urine testing; these findings may impact fire service contamination reduction guidelines and best practices. In Arizona, the study has influenced cancer law. Jefferey L. Burgess, Associate Dean for Research and Professor, University of Arizona will be a co-instructor.