Question

Difficulty: MediumHours of Service (HOS) Regulations

A property-carrying commercial motor vehicle driver completes 4.5 hours4.5\text{ hours} of driving, followed by 30 consecutive minutes30\text{ consecutive minutes} logged as on-duty (not driving) while performing cargo inspections. The driver then operates the vehicle for another 3.5 hours3.5\text{ hours}, bringing total driving time for the shift to 8.0 hours8.0\text{ hours}. Assuming the 1414-hour duty window remains open, what is the maximum number of additional driving hours the driver is legally permitted to complete during this shift?

  1. A
    0.0 hours0.0\text{ hours}
  2. B
    2.5 hours2.5\text{ hours}
  3. 3.0 hours3.0\text{ hours}Answer
  4. D
    5.5 hours5.5\text{ hours}

Answer

3.0 hours3.0\text{ hours}
Under FMCSA Hours of Service regulations for property-carrying vehicles, drivers may drive a maximum of 11 hours11\text{ hours} after 10 consecutive hours10\text{ consecutive hours} off duty. Having driven 8.0 hours8.0\text{ hours}, the driver has 3.0 hours3.0\text{ hours} of driving remaining (11.0−8.0=3.011.0 - 8.0 = 3.0). Furthermore, the 30 consecutive minutes30\text{ consecutive minutes} spent on-duty inspecting cargo fulfills the mandatory 3030-minute non-driving break requirement, and since only 3.5 hours3.5\text{ hours} have been driven since that break, all 3.0 remaining hours3.0\text{ remaining hours} can be driven without requiring another break.

Step-by-Step Solution

1
Evaluate compliance with the mandatory 30-minute break rule.
The 30 consecutive minutes of on-duty (not driving) inspection qualifies as a valid rest break under FMCSA regulations, resetting the 8-hour driving clock.
Federal regulations permit the required 30-minute break to be satisfied by off-duty, sleeper-berth, or on-duty not driving status after no more than 8 cumulative hours of driving.
2
Calculate remaining driving hours under the maximum daily driving limit.
11.0 hours−8.0 hours driven=3.0 hours remaining11.0\text{ hours} - 8.0\text{ hours driven} = 3.0\text{ hours remaining}.
Property-carrying drivers are restricted to a maximum of 11 hours of driving time following 10 consecutive hours off duty.
3
Verify if another break is needed before completing the remaining driving hours.
The driver has logged 3.5 hours3.5\text{ hours} of driving since the break; adding 3.0 hours3.0\text{ hours} totals 6.5 hours6.5\text{ hours}, which is within the 8.08.0-hour threshold.
A second 30-minute break is only triggered if driving exceeds 8 cumulative hours without an interruption of at least 30 consecutive minutes.

Key Concept

11-Hour Driving Limit and 30-Minute Rest Break Regulations
Estimated Time:1m 15s
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