Athletic Heat Safety Standards in the United States

As more states adopt Wet Bulb Globe Temperature (WBGT) requirements for athletic programs, accurate on-field heat monitoring has never been more essential. WBGT provides a true picture of environmental heat stress by factoring in temperature, humidity, radiant heat, and airflow—far beyond what a standard thermometer or heat index can show.

This map highlights where statewide mandates and guidelines are emerging, helping coaches, athletic trainers, and administrators stay ahead of evolving safety standards. Reliable, regulation-ready WBGT measurements ensure athletes can train and compete safely in every environment.