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SESK: Stuff Everyone Should Know · sesk.info/cdl-hazmat-training-3-years

How often must hazmat employees be trained and tested?

At least once every 3 years.

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  1. Once a month
  2. Only once, when hired
  3. At least once every 3 years ✔

Why: Employers must train and test every driver who hauls hazmat, including security risks, and keep training records while the employee works with hazmat plus 90 days.

Huh, didn't know that: An original or renewed H endorsement also needs a TSA security threat assessment.

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References

Answer: At least once every 3 years. Employers must train and test every driver who hauls hazmat, including security risks, and keep training records while the employee works with hazmat plus 90 days.

  1. California Commercial Driver Handbook (DMV) www.dmv.ca.gov/portal/file/california-commercial-driver-handbook-pdf
    The regulations require that HazMat employees be trained and tested at least once every 3 years.
    Checked 2026-10-10.

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