Hours of Service Rules: Limits, Logs and Exemptions

Key takeaways

• For most interstate property-carrying drivers, the core federal HOS rules allow up to 11 hours of driving after 10 consecutive hours off duty, within a 14-consecutive-hour driving window.
• A qualifying 30-minute interruption is required after 8 cumulative hours of driving without one. The 30 minutes must be consecutive; two 15-minute periods do not satisfy the rule.
• Weekly limits generally prohibit driving after 60 hours on duty in 7 consecutive days or 70 hours in 8 consecutive days, depending on the carrier’s operating schedule.
• The sleeper-berth, short-haul, adverse-driving, agricultural, and other exceptions have specific conditions. They should not be treated as blanket exemptions from HOS rules.
• Most drivers who must keep records of duty status (RODS) must use a compliant ELD unless a regulatory exception applies.

Hours of Service rules limit when commercial motor vehicle drivers may drive and require carriers to keep accurate duty records. The rules are meant to reduce fatigue while giving drivers and dispatchers a consistent framework for planning trips. This guide focuses primarily on the federal rules for interstate property-carrying drivers. Passenger-carrier rules and state intrastate rules can differ.

The controlling requirements are in 49 CFR Part 395. FMCSA also provides a practical summary of the current HOS limits. Carriers should compare each operation with the regulation and any applicable exemption rather than relying only on an ELD clock or a general guide.

What Counts as Driving, On-Duty, Off-Duty, and Sleeper-Berth Time?

Correct duty-status classification is the foundation of HOS compliance:

• Driving time is time spent at the controls of a commercial motor vehicle in operation.
• On-duty, not driving includes work such as inspections, loading, unloading, fueling, dispatch tasks, and other compensated work that meets the on-duty definition.
• Off-duty time is time when the driver is relieved of all responsibility for performing work and is free to pursue personal activities.
• Sleeper-berth time is time properly recorded in a compliant sleeper berth. It is a separate duty status and can be used for a full daily reset or, when every condition is met, a qualifying split.

A location or activity does not automatically determine duty status. For example, waiting at a customer may be on duty or off duty depending on whether the driver is relieved of responsibility and free to use the time for personal purposes.

Property-Carrying Driver Limits

Under 49 CFR 395.3, most interstate property-carrying drivers are subject to these limits:

• 10 consecutive hours off duty: A driver must obtain the required off-duty period before beginning a new duty period.
• 11-hour driving limit: After 10 consecutive hours off duty, a driver may drive for no more than 11 total hours.
• 14-consecutive-hour driving window: A driver may not drive after the 14th consecutive hour after coming on duty following 10 consecutive hours off duty. Meal periods, fuel stops, detention, and other breaks generally do not pause this window.
• 60/70-hour limit: A driver may not drive after accumulating 60 on-duty hours in 7 consecutive days for a carrier that does not operate every day of the week, or 70 hours in 8 consecutive days for a carrier that operates every day.
• 34-hour restart: A driver may restart the applicable 7- or 8-day calculation after 34 or more consecutive hours off duty. A restart is an option, not a requirement.

The 11-hour limit is not a daily allowance that can be used anywhere in a 24-hour clock. It applies inside the 14-hour window that begins when the driver comes on duty after the qualifying off-duty period.

The 30-Minute Break Rule

A property-carrying driver subject to the rule may not drive after 8 cumulative hours of driving without at least a 30-minute interruption in driving. The interruption can be recorded as off duty, sleeper berth, or on duty not driving, or as a consecutive combination of those non-driving statuses.

The 30 minutes must be consecutive. Two shorter periods that add up to 30 minutes do not qualify. A driver does not have to wait until reaching 8 hours of driving; an earlier qualifying interruption resets the calculation. The rule is tied to driving time, not simply elapsed on-duty time, and short-haul drivers who qualify under the applicable 49 CFR 395.1(e) exception are not subject to the property-carrier 30-minute-break provision.

Sleeper-Berth Rules and Split Rest

A property-carrying driver may satisfy the normal daily off-duty requirement with at least 10 consecutive hours off duty. The sleeper-berth provision in 49 CFR 395.1(g) also permits a qualifying split:

• One period must include at least 7 consecutive hours in the sleeper berth.
• The other period must include at least 2 consecutive hours off duty, in the sleeper berth, or a combination of the two.
• The paired periods must total at least 10 hours.
• When the periods are properly paired, neither qualifying period counts against the 14-hour driving window.

Common combinations are 7/3 and 8/2. Two 5-hour periods do not qualify under the property-carrier provision. Drivers and carriers should confirm the ELD has paired the correct periods before relying on the available-hours calculation.

Passenger-Carrying Rules Are Different

The familiar 11-hour and 14-hour property-carrier limits should not be applied to passenger operations. Under 49 CFR 395.5, a passenger-carrying driver generally may not drive more than 10 hours after 8 consecutive hours off duty or drive after being on duty for 15 hours following 8 consecutive hours off duty. The applicable 60/70-hour limits also remain relevant. Passenger sleeper-berth provisions differ from the property-carrier split described above.

Short-Haul, Adverse-Driving, and Agricultural Provisions

Exceptions must be evaluated one duty day and one operation at a time:

• Short-haul recordkeeping exception: A qualifying driver generally must operate within a 150-air-mile radius of the normal work reporting location, return to that location, and be released from work within 14 consecutive hours. The carrier must maintain the required time records. The exception replaces the normal RODS method; it does not erase the applicable driving limits.
• Adverse driving conditions: When qualifying conditions that were not known, and could not reasonably have been known, are encountered, a property-carrying driver may extend both the 11-hour driving limit and the 14-hour window by up to 2 hours. The exception does not extend the 60/70-hour limit and is not a general allowance for predictable traffic, weather, or loading delays.
• Agricultural commodities: During state-determined planting and harvesting periods, 49 CFR 395.1(k) provides specific relief for qualifying transportation within a 150-air-mile radius from the source of the agricultural commodity. Operations beyond the exempt area must be analyzed carefully because HOS and logging requirements can resume.

Drivers who cross the short-haul radius or exceed the time limit may need a RODS for that day. The carrier should have a procedure for switching to a compliant log before a planned or unexpected trip falls outside the exception.

RODS, ELDs, and Recordkeeping

Drivers who must keep RODS generally must use a compliant electronic logging device unless a specific exception applies. Limited ELD exceptions include drivers who use paper RODS on no more than 8 days in any rolling 30-day period, certain driveaway-towaway operations, and qualifying pre-2000 vehicles or engines. FMCSA’s ELD exceptions guidance should be checked before relying on an exception.

For the pre-2000 exception, FMCSA’s guidance generally looks first to the vehicle model year shown by the VIN and also addresses later vehicles with an engine predating model year 2000. Carriers should retain documentation of motor and engine changes at the principal place of business. A vehicle manufactured in model year 2000 or later is not automatically excepted merely because it lacks a conventional ECM.

An ELD records data, but it does not transfer compliance responsibility away from the driver or motor carrier. Drivers must use the correct duty status, review edits, add annotations where appropriate, address unassigned driving events, and certify complete and accurate records. Motor carriers must retain RODS and supporting documents for 6 months under 49 CFR 395.8(k).

For related implementation details, see Geosavi’s guides to using an ELD on a phone, federal and state ELD requirements, and selecting an electronic logging device.

Common HOS Compliance Mistakes

• Treating the 11-hour limit as a rolling 24-hour allowance instead of applying it within the 14-hour driving window.
• Assuming detention, fueling, or a meal break pauses the 14-hour window.
• Combining separate short breaks to claim the required 30 consecutive minutes.
• Using the short-haul exception without returning to the normal reporting location, meeting the 14-hour limit, or keeping carrier time records.
• Relying on an adverse-driving exception for conditions that were known or reasonably foreseeable before dispatch.
• Recording loading, inspections, fueling, or other work as off duty.
• Assuming an ELD exception is an exemption from the underlying HOS limits.
• Trusting an ELD’s available-hours display without reviewing duty statuses, edits, annotations, and split-sleeper pairing.

A Practical HOS Compliance Checklist

• Identify the correct rule set for property, passenger, interstate, intrastate, or exempt operations.
• Confirm the driver had the required off-duty period before dispatch.
• Plan the route around the 11-hour, 14-hour, 30-minute, and 60/70-hour limits that apply.
• Build realistic time for fueling, inspections, traffic, detention, parking, and weather into the schedule.
• Verify that every claimed exception meets all of its conditions and is documented.
• Review ELD records daily for incorrect duty status, missing locations, unassigned driving, rejected edits, and uncertified logs.
• Train dispatchers not to assign work that would require an HOS violation or pressure a driver to misstate a record.
• Keep RODS, time records, and supporting documents for the required retention period.

Use Accurate HOS Data to Plan Safer Operations

Good HOS compliance combines accurate records with realistic dispatch decisions. ELD alerts can help, but drivers, safety teams, and dispatchers still need to understand which clock applies and why. Reviewing exceptions before dispatch and auditing logs promptly is more reliable than trying to correct a violation after it occurs.

Geosavi helps fleets connect ELD data, driver activity, vehicle information, and operational reporting in one platform. Contact Geosavi to discuss a fleet-management and compliance workflow that fits your operation.