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Heat Stress Online Course


This heat stress awareness training teaches participants how heat affects the body, the steps they can take to prevent heat stress, and elementary first aid that can be given to a worker affected by heat-related illness. Whether they work outdoors or indoors with equipment and machinery that give off high levels of heat, workers need to know how to recognize and prevent heat stress.

Learn the Dangers That Come with Working in Excessive Heat Environments

In this heat stress training course, you will learn:

  • Examples of heat stress, heat exhaustion and heat stroke
  • How the body reacts to heat
  • Recognizing symptoms of heat stress
  • Preventing heat-related illnesses
  • First aid


The heat exhaustion OSHA training takes approximately 30 minutes to complete.


Participants must achieve a mark of 80% or higher to earn their certificate of completion. Those that do not reach the required mark will be allowed to repeat the course two additional times.

Certificate of Completion

Participants who successfully pass the heat stress safety training will earn a certificate of completion which they can print out or download for their records.

What are the noticeable signs of Heat Stress?

  • Confusion
  • Dark-colored urine (a sign of dehydration)
  • Dizziness, Fainting and Fatigue
  • Headache
  • Muscle or abdominal cramps
  • Nausea, vomiting, or diarrhea
  • Pale skin
  • Profuse sweating
  • Rapid heartbeat

Safety tips if you work in the heat:

  1. Don’t wait until you are thirsty
  2. Carry a water bottle
  3. Wear a hydration backpack
  4. Monitor your urine color
  5. Pre-hydrate before heat exposure
  6. Avoid ice cold drinks
  7. Limit caffeine intake
  8. Avoid alcohol
  9. Take appropriate meal breaks
  10. Wear appropriate clothing
  11. Wear sunscreen with highest possible levels of uv protection
  12. Drink an electrolyte drinks
  13. Wear a sun hat or a brim for your hard hat
  14. Work smart in the heat and conserve energy

More Information:

OSHA Occupational Heat Exposure Overview

WebMD Heat Exhaustion