Every year, millions of acres of land burn across the United States and wildland firefighters (WFFs) are asked to protect our lives, our homes, and our forests. But fires are unpredictable and dangerous. Between 2000-2019, based on data compiled in the NIOSH Wildland Firefighter On-Duty Death Surveillance System from three data sources, over 400 on-duty WFF fatalities occurred. 1,2,3 Common hazards faced on the fire line can include burnovers/entrapments, heat-related illnesses and injuries, smoke inhalation, vehicle-related injuries (including aircraft), slips, trips, and falls, and others.4 In addition, due to prolonged intense physical exertion, WFFs are at risk for sudden cardiac deaths and rhabdomyolsis.