This document provides information about the emerging fentanyl overdose epidemic in the United States from the national and state perspectives. It discusses the rise in fentanyl-related overdoses and seizures from 2013-2014 according to data from various sources. The learning objectives are to explain the epidemiology of the rise in fentanyl overdoses, identify lessons from an Ohio investigation, and describe one state's experience. Recommendations include improving detection of fentanyl through testing and surveillance, expanding naloxone access, and long-term efforts to reduce opioid overdoses through prescribing guidelines and treatment expansion.