Top 10 Most Common HOS Violations and How to Avoid Them

Hours of Service violations consistently rank among the top reasons commercial motor vehicle drivers are placed out of service during roadside inspections. Each violation adds points to your CSA score, increases your likelihood of being selected for future inspections, and can result in fines ranging from hundreds to thousands of dollars. Understanding the most common violations and implementing specific countermeasures for each one is the most effective way to maintain a clean compliance record.

1. Exceeding the 11-Hour Driving Limit

Driving beyond the 11-hour maximum after 10 consecutive hours off duty is the single most cited HOS violation. It typically happens when drivers underestimate trip duration, encounter unexpected delays, or feel pressure to complete a delivery. Prevention starts with realistic trip planning that includes buffer time for traffic, weather, and facility delays. Set your ELD to alert at 10 hours of driving so you have a one-hour warning before reaching the limit. If you cannot complete a delivery within your available hours, communicate with your dispatcher or broker immediately rather than pushing through and risking a violation.

2. Exceeding the 14-Hour Driving Window

The 14-hour window begins when you first go on duty after a qualifying off-duty period and does not pause for breaks. Drivers who spend hours waiting at shipper or receiver facilities often exhaust their 14-hour window before using their full 11 driving hours. Minimize non-driving on-duty time by completing administrative tasks during off-duty periods, avoiding facilities known for long wait times, and using the personal conveyance provision appropriately for non-business-related vehicle movement.

3. No Record of Duty Status (No ELD)

Operating a commercial motor vehicle without a functioning, registered ELD is an automatic out-of-service violation. This violation occurs when drivers operate with a device that is not on the FMCSA registry, when an ELD malfunctions and the driver does not switch to paper logs, or when the device has been disconnected or tampered with. Verify your ELD's registration status quarterly, keep blank graph-grid paper in the cab for malfunction situations, and never operate with a disconnected or non-functional device.

4. Failing to Take the Required 30-Minute Break

Drivers must take a 30-minute break after 8 cumulative hours of driving. This break can be off-duty, sleeper berth, or on-duty not driving time. The most common way this violation occurs is when drivers lose track of their cumulative driving time and drive past the 8-hour mark without a qualifying break. Most ELDs provide a countdown or alert for the 30-minute break requirement. Make sure this alert is enabled and respond to it promptly by taking a break at the next safe opportunity.

5. Falsifying Logs

Deliberately altering ELD records to conceal driving time is a serious violation that can result in driver disqualification. While ELDs have made falsification more difficult than with paper logs, some drivers still attempt to manipulate records by driving under a co-driver's profile, using personal conveyance status while actually conducting business, or editing logs to remove driving time. All original ELD records are retained alongside edits, creating an audit trail that inspectors can review. The risk of detection is high, and the consequences including potential criminal charges make falsification an unacceptable risk.

6. Operating Beyond the 60/70-Hour Limit

Driving after accumulating 60 hours of on-duty time in 7 days or 70 hours in 8 days is a violation that often catches drivers during particularly busy weeks. Track your weekly cumulative hours daily and plan your 34-hour restart before you reach the limit rather than after. Most ELD platforms display your available hours under the 60/70-hour rule alongside your daily limits. Pay attention to this number, especially during weeks when you are running hard with minimal off-duty time.

7. Unassigned Driving Time

When an ELD records vehicle movement without a logged-in driver, it creates unassigned driving time that the carrier must resolve within 13 days. This commonly occurs when a driver forgets to log in before moving the truck, when a mechanic or yard driver moves the vehicle without logging in, or during team driving transitions. Review your ELD records daily for unassigned time and claim or annotate it immediately. Carriers should have a process for reviewing and assigning unassigned driving time weekly to avoid accumulating unresolved records.

8. Missing Supporting Documents

Drivers must carry specific supporting documents including the ELD user manual (or quick reference guide), a data transfer instruction sheet for inspectors, and a supply of blank graph-grid paper for use during ELD malfunctions. Missing any of these documents is a form-and-manner violation. Create a document packet for each cab and check it during pre-trip inspections. Replace any documents that are missing, damaged, or outdated. This is one of the easiest violations to prevent with basic organization.

9. Improper Use of Personal Conveyance

Personal conveyance allows drivers to move their truck for personal reasons while off duty, such as driving to a restaurant or moving from an unsafe parking location. Misusing personal conveyance for business-related movement, such as driving to a shipper or repositioning for a load, is a violation. The FMCSA has issued guidance clarifying that personal conveyance is limited to personal use and should not be used to extend driving time. Use personal conveyance only for genuinely personal movement and always be prepared to explain your use of it during an inspection.

10. Insufficient Off-Duty Time Between Shifts

Drivers must take at least 10 consecutive hours off duty before starting a new driving period. Violations occur when drivers log off duty but begin driving before the full 10 hours have elapsed, when off-duty time is interrupted by on-duty activity, or when the sleeper berth split provision is applied incorrectly. Pay close attention to your off-duty start time and do not begin driving until your ELD confirms that you have completed the required rest period. If using the sleeper berth provision, ensure both segments meet the minimum duration requirements.

Building a Violation-Free Record

No single tip prevents all HOS violations. The carriers and drivers with the best compliance records combine technology (properly configured ELD alerts), planning (realistic trip scheduling with buffer time), habits (daily log review and document checks), and culture (dispatchers who prioritize compliance over on-time delivery at any cost). ArrowLane supports carrier compliance by matching loads to available driver hours, providing real-time HOS visibility through our platform, and working with carriers to build sustainable compliance practices rather than pressuring drivers to cut corners.