Hot weather and hot work areas can overload the body's ability to cool down. Heat illness can progress from cramps to a medical emergency.
Key points
- In B.C. employers must assess heat stress where workers may be exposed, and put an exposure control plan in place.
- Cool potable water must be provided near the work area. Drink small amounts often, before you feel thirsty.
- Controls come in this order: engineering controls, then administrative controls (work-rest cycles, scheduling), then PPE.
- Early signs include heavy sweating, headache, dizziness, weakness, cramps and nausea. Stop, move to a cooler place and rest.
- A worker who is confused, stops sweating, has hot dry skin or collapses is in a medical emergency. Call 911.
- Watch co-workers too. People often do not recognize the signs in themselves.
Ask the crew
- Where is the cool water and shade for this job?
- Who is new or not yet used to the heat today?
- What is the plan if someone shows symptoms?
Sign-off sheet
The PDF includes a sign-off sheet with date, location, presenter and nine signature lines. Print it, run the talk and keep the signed copy with your site safety records.
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Sources
Regulation references were checked against the online OHS Regulation in October 2026. Regulations change: confirm against the current text and your employer procedures. General information, not legal advice.