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SESK: Stuff Everyone Should Know · sesk.info/cdl-distraction-types

According to the CDL manual, which kind of distraction is the most dangerous?

A distraction that is both physical and mental.

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  1. A mental one, like daydreaming
  2. One that is both physical and mental ✔
  3. A physical one, like reaching for a cup

Why: Physical distractions take your hands or eyes away; mental ones take your mind away. Texting or talking on a phone does both, which creates an even greater risk.

Huh, didn't know that: Talking with a passenger counts as a mental distraction.

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Why did the driver's mind wander? It was a mental distraction.
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References

Answer: One that is both physical and mental. Physical distractions take your hands or eyes away; mental ones take your mind away. Texting or talking on a phone does both, which creates an even greater risk.

  1. California Commercial Driver Handbook (AAMVA model manual) www.dmv.ca.gov/portal/file/california-commercial-driver-handbook-pdf
    Both Physical and Mental Distraction... creates an even greater chance an accident could happen, such as talking on a cell phone
    Checked 2026-10-10.

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