Calculator Category
Hours of Service
Calculators
Comprehensive tools for calculating remaining HOS hours, managing your duty cycles, and ensuring full compliance with FMCSA regulations. Never risk an out-of-service violation again.
DOT Hours of Service
Track your daily DOT hours and calculate your 11 and 14-hour shift compliance.
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HOS Hours Remaining
Calculate your remaining hours of service available for driving and on-duty activities.
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70-Hour 8-Day Recap
Project your rolling 8-day cycle and calculate available hours for tomorrow.
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60-Hour 7-Day Recap
Project your rolling 7-day cycle and calculate available hours for tomorrow.
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34-Hour Restart
Determine the precise moment your 70-hour clock resets after a rest period.
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Understanding DOT HOS Regulations
The Federal Motor Carrier Safety Administration (FMCSA) strictly enforces Hours of Service (HOS) regulations to guarantee that commercial motor vehicle (CMV) operators have adequate rest, dramatically reducing the likelihood of fatigue-related accidents.
Key Limits for Property-Carrying Drivers:
- 11-Hour Driving Limit: A driver may operate a commercial vehicle for a maximum of 11 hours, strictly following 10 consecutive hours off duty.
- 14-Hour Shift Window: Once you come on duty, you have a 14-hour window to complete your 11 hours of driving. You may not drive beyond the 14th consecutive hour.
- 30-Minute Rest Break: Driving is strictly prohibited if more than 8 cumulative hours have passed without at least a 30-minute interruption in driving status (off-duty, sleeper berth, or on-duty not driving).
- 60/70-Hour Weekly Limit: You cannot drive after being on duty for 60 hours in 7 consecutive days, or 70 hours in 8 consecutive days. You must manage a rolling recap.
Maintaining accurate electronic logs (ELDs) is critical. However, planning your week effectively requires projecting your hours ahead of time. Our suite of free HOS calculators allows you to run simulations and plan your trips so you never fall out of compliance.
Frequently Asked Questions
What is the 11-hour driving rule?
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The 11-hour driving rule states that a property-carrying commercial driver may drive a maximum of 11 hours after 10 consecutive hours off duty.
How does the 14-hour shift window work?
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Once you come on duty, you have a 14-consecutive-hour window in which to drive your maximum of 11 hours. Taking off-duty time or breaks does not extend this 14-hour window.
When is a 30-minute rest break required?
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A 30-minute interruption of driving status is required if more than 8 consecutive hours have passed since the end of the driver's last off-duty or sleeper-berth period of at least 30 minutes.
How does a 34-hour restart work?
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Drivers can reset their 60-hour or 70-hour clock to zero by taking at least 34 consecutive hours off duty or in the sleeper berth. Once completed, your 7-day or 8-day rolling recap resets entirely.