SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/cdl-hazmat-leak-identify

How should you identify a hazardous material leaking from your truck?

Use shipping papers, labels or package location.

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  1. By its smell
  2. By touching it with gloves
  3. Shipping papers, labels or package location ✔

Why: Never touch leaking material, and never sniff to find a leak. Toxic gases can destroy your sense of smell and hurt you even if they have no smell.

Huh, didn't know that: Never keep driving with a leak to find help; park, secure the area, stay there and call.

The dad joke
Why did the trucker carry a notepad? He likes to keep things on paper.
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References

Answer: Shipping papers, labels or package location. Never touch leaking material, and never sniff to find a leak. Toxic gases can destroy your sense of smell and hurt you even if they have no smell.

  1. California Commercial Driver Handbook (DMV) www.dmv.ca.gov/portal/file/california-commercial-driver-handbook-pdf
    Identify the HazMat leaking using shipping papers, labels, or package location.
    Checked 2026-10-10.

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