SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/cdl-hos-34-hour-restart

How many consecutive hours off duty restart a truck driver's 60/70 hour clock?

34 hours.

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  1. 34 hours ✔
  2. 24 hours
  3. 48 hours

Why: A 7 or 8 day period may end when the driver begins 34 or more consecutive hours off duty. After that, the 60 or 70 hour count starts fresh.

Huh, didn't know that: Taking the restart is optional; drivers can instead let old hours roll off day by day.

The dad joke
Why is a 34-hour restart like a good nap? You wake up with a fresh clock.
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References

Answer: 34 hours. A 7 or 8 day period may end when the driver begins 34 or more consecutive hours off duty. After that, the 60 or 70 hour count starts fresh.

  1. 49 CFR 395.3 Maximum driving time for property-carrying vehicles (eCFR) www.ecfr.gov/current/title-49/section-395.3
    Any period of 7 consecutive days may end with the beginning of an off-duty period of 34 or more consecutive hours.
    Checked 2026-10-10.

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Test yourself in the game

Cars & DrivingA property-carrying driver may drive a total of how many hours within the 14-hour window?Cars & DrivingAfter coming on duty following 10 hours off, a truck driver may not drive after how many consecutive hours?Cars & DrivingA truck driver needs a 30-minute break after how many hours of driving time?

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