The Heat-Related EMS Activation Surveillance Dashboard, created in partnership between the HHS Office of Climate Change and Health Equity and the DOT National Highway Traffic Safety Administration, uses nationally submitted Emergency Medical Services (EMS) data to track EMS responses to people experiencing heat-related emergencies in the pre-hospital setting. For more information regarding how to use this dashboard, please see the companion document.

Update (5/31/2024): Due to temporarily incomplete data from Texas and Utah, National counts and rates of heat-related injury and illness are incomplete and percent changes may be overstated.