Free FMCSA HOS Regulations Questions and Answers — Questions and Answers
Question 1: What is the maximum number of hours a commercial driver can drive in a single day before they are required to take a 10-hour break?
- 8 hours
- 14 hours
- 11 hours (Correct answer)
- 16 hours
Correct answer: 11 hours
Under FMCSA Hours of Service (HOS) regulations, a commercial driver is permitted to drive a maximum of 11 hours within a 14-hour on-duty window. After completing these 11 driving hours, or reaching the end of the 14-hour on-duty period, the driver is required to take a mandatory 10 consecutive hours of off-duty time before driving again.
Question 2: Under the 14-hour rule, how long can a driver be on duty before they must stop driving?
- 8 hours
- 10 hours
- 11 hours
- 14 hours (Correct answer)
Correct answer: 14 hours
The 14-hour rule dictates that a commercial driver cannot drive after being on duty for 14 consecutive hours. This 14-hour period begins when the driver starts their workday and includes all on-duty time, such as driving, loading, unloading, and inspections, regardless of whether they have used all their 11 driving hours. Once this 14-hour window is exhausted, the driver must take a 10-hour off-duty break.
Question 3: How many consecutive hours of off-duty time are required to reset the 60/70-hour weekly limit under the FMCSA HOS regulations?
- 24 hours
- 34 hours (Correct answer)
- 48 hours
- 72 hours
Correct answer: 34 hours
To reset the 60/70-hour weekly limit under FMCSA HOS regulations, a commercial driver must take at least 34 consecutive hours of off-duty time. This "34-hour restart" allows drivers to begin a new 60-hour (for 7-day operations) or 70-hour (for 8-day operations) work week, effectively resetting their cumulative on-duty time.
Question 4: After how many hours of driving without a break is a driver required to take at least a 30-minute break?
- 8 hours (Correct answer)
- 6 hours
- 4 hours
- 10 hours
Correct answer: 8 hours
FMCSA regulations require a commercial driver to take at least a 30-minute off-duty break after 8 cumulative hours of driving. This break must be taken before the driver can continue driving, ensuring they have adequate rest during long shifts to maintain alertness and safety.
Question 5: What is the maximum on-duty time a driver can have in a 7-day period according to the 60/70-hour rule?
- 50 hours
- 60 hours (Correct answer)
- 70 hours
- 80 hours
Correct answer: 60 hours
Under the 60/70-hour rule, a driver operating for a carrier that does not operate every day of the week (i.e., 7-day operation) is limited to a maximum of 60 hours on-duty in any 7-consecutive-day period. For carriers operating every day (8-day operation), the limit is 70 hours in 8 consecutive days.
Free FMCSA HOS Regulations Questions and Answers
What is the maximum number of hours a commercial driver can drive in a single day before they are required to take a 10-hour break?