Federal heat protection now has an enforcement arm. Under a National Emphasis Program issued April 10, 2026, OSHA directs its inspectors to target outdoor and indoor workplaces with hazardous heat — bakeries and foundries, construction and warehousing, farm fields and delivery routes — and is separately drafting a dedicated Heat Injury and Illness Prevention standard. [1]

The paper argued on June 27 that heat.gov counts who sits under a federal heat alert, turning "it's brutal out" into a measured population under warning. The worker-safety record adds the other half: who is legally obligated to act when that number climbs. [1]

OSHA's measure is not a thermometer reading. It uses the Wet Bulb Globe Temperature, which folds heat, humidity, sun, and air movement into one number, and it enforces protection under the General Duty Clause, which requires employers to keep a workplace free of recognized hazards likely to cause death or serious harm. [1] Five states — California, Washington, Oregon, Minnesota, and Colorado — already run their own heat rules; the federal program reaches the rest. [1]

The live pages tell a worker where the threshold bites today. Heat.gov's counter shows how many people are under an active extreme-heat advisory, watch, or warning at that moment, and the National Weather Service HeatRisk product grades the coming week from green to magenta. [2] On a smoky day the AirNow Fire and Smoke Map plots fine-particle pollution block by block, so a crew reads the air over its own worksite rather than the horizon. [3]

This is the gap the record keeps closing. X runs summer as alarm and denial, arguing whether the heat or the smoke is real; coverage runs the wilting-pedestrian photo and leaves. [2] Neither hands a roofer the inspection standard, the alert count, and the smoke reading that decide whether work stops at two in the afternoon. [1][3]

-- NORA WHITFIELD, Chicago