The Brief The UIL is mandating Wet Bulb Globe Temperature (WBGT) heat-monitoring safety rules for all Texas public school outdoor sports and marching bands starting Aug. 1. The statewide mandate follows heat-related student-athlete tragedies, including the heatstroke death of 15-year-old Lancaster High student Preston Malone III. Real-time WBGT readings will require schools to adjust practice durations, mandate rest and hydration breaks, limit heavy equipment, and provide rapid-cooling zones. Related articleWhile the UIL approved WBGT as a recommended measurement in 2023, the UIL Medical Advisory Committee recently recommended making the guidelines mandatory. The rules also require schools to maintain designated rapid-cooling infrastructure onsite, such as cold-water immersion tubs or tarps, during high-heat conditions.