SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/cdl-hazmat-hot-trailer-doors

You think your cargo may be on fire. What should you do before opening the trailer doors?

Feel the doors to see if they are hot.

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  1. Open them fast to let smoke out
  2. Feel the doors to see if they are hot ✔
  3. Spray water through the vents

Why: If the doors are hot, do not open them. Opening lets air in and can make a fire flare up. Call for help and keep the shipping papers with you.

Huh, didn't know that: Unless you have the training and equipment, do not fight hazmat fires.

The dad joke
Why did the trucker carry a thermos? He likes his coffee hot and his brakes cool.
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References

Answer: Feel the doors to see if they are hot. If the doors are hot, do not open them. Opening lets air in and can make a fire flare up. Call for help and keep the shipping papers with you.

  1. California Commercial Driver Handbook (DMV) www.dmv.ca.gov/portal/file/california-commercial-driver-handbook-pdf
    Feel trailer doors to see if they are hot before opening them.
    Checked 2026-10-10.

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