WHAT IS HEAT STRESS?
Heat stress is a condition that occurs when the body is unable to regulate its internal temperature and cool itself through sweating. Heat stress shows many symptoms and encompasses several heat-induced illnesses such as heat stroke, heat exhaustion, heat cramps and heat rashes. These conditions are more likely to occur during hot summer months but may affect workers and athletes in various climates and conditions year-round. The most common composite measurement used to determine appropriate exposure to heat stress conditions is Wet Bulb Globe Temperature or "WBGT."
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OSHA Renews National Emphasis Program on Heat: What Employers Need to Know in 2026
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As temperatures rise and extreme heat events become more frequent, the Occupational Safety and Health Administration (OSHA) has renewed its National Emphasis Program (NEP) on Outdoor and Indoor Heat-Related Hazards, extending enforcement through 2026.
For employers, this is a clear signal:
Heat safety planning is not just best practice -- it'... -
How to Measure Heat Stress: A Practical Guide for Safer Worksites
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Measuring heat stress is essential for protecting workers in hot environments. Whether on a construction site, inside a warehouse, or in a manufacturing facility, relying on guesswork or basic weather data is not enough. To make informed safety decisions, employers need accurate, on-site measurements that reflect real working conditions.
This ... -
What Are OSHA Requirements for Heat Stress?
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Heat stress is a growing workplace safety risk, especially across construction, manufacturing, agriculture, and warehousing. While Occupational Safety and Health Administration (OSHA) does not yet have a single nationwide heat-specific standard, employers are still legally responsible for protecting workers from heat-related hazards.
Here's what ...