8 mins to read

DOT hours of service guide

By Jennifer Coreno Strouth April 30, 2026

A lot can go wrong when fleet managers do not have a clear view of driver hours. A load still needs to move, but the nearest driver is nearly out of hours. Another driver keeps rolling past a legal limit to stay on schedule. What starts as a log issue becomes a compliance risk.

Near real-time hours of service (HOS) tracking helps fleets avoid those situations by showing who is available, who is approaching a limit and where attention is needed before a violation occurs.

That kind of visibility supports more than HOS compliance. It can also improve dispatch decisions, reduce guesswork and help keep operations moving smoothly throughout the day.

HOS tracking software like Verizon Connect’s Reveal ELD Logbook connects directly to electronic logging devices (ELDs), giving fleet managers a live view of driver status, remaining hours and potential violations.

The shift from logging to monitoring

For years, HOS tracking was largely a recordkeeping task. Drivers logged their time, and managers reviewed those records later to confirm compliance with FMCSA hours of service regulations under 49 CFR Part 395.¹

With automated truck DOT compliance software, HOS tracking happens continuously. Devices sync with the vehicle’s engine to capture driving time, engine hours, miles driven and location data without relying on manual input. That HOS status information is transmitted directly to a manager’s dashboard, providing near real-time visibility across the fleet.

This shift reduces the risk of common "form and manner" violations, such as missing location data, incomplete logs or incorrect vehicle information. Because the data is captured automatically, there is less room for clerical error.²

It also eliminates the back-and-forth that used to slow down dispatch decisions. Instead of calling drivers to ask how much time they have left, managers can see remaining hours instantly and make informed decisions without interrupting the driver.

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Visualizing your fleet’s availability

Automatic HOS tracking is only useful if the data is easy to understand. A clear dashboard helps fleet managers quickly assess driver availability and make decisions without digging through individual logs.

At a glance, managers can see how many drivers are currently driving, on duty but not driving or off duty. This high-level view makes it easier to understand fleet-wide activity and identify capacity quickly.

More detailed views provide key information for each driver, including current duty status, how long they have been in that status and how much driving or on-duty time they have already used. A visual progress bar shows how close each driver is to their limit.

That kind of "single pane of glass" view supports better dispatch decisions. For example, assigning a four-hour run to a driver with only two hours remaining on their driving clock creates unnecessary risk. With HOS tracking, those situations are easier to avoid.

Advanced tracking features for 2026

As HOS tracking software evolves, it is becoming more integrated with other fleet workflows, helping managers connect compliance, safety and operations in one place.

DVIR integration as a safety checkpoint

Using HOS tracking apps like the Reveal ELD Logbook app, drivers are prompted to complete a driver vehicle inspection report (DVIR) before starting their day. This way, inspections become part of the same workflow as hours tracking.

This creates a natural checkpoint. Drivers confirm vehicle condition before their driving time begins, and managers can review inspection data alongside HOS records. That helps ensure safety issues are identified early, not after a problem occurs on the road.

Sub-duty tracking for more accurate records

Sub-duty tracking adds useful context to HOS logs. Instead of treating all driving activities the same, drivers can classify time more accurately. Sub-duties related to drive time include:

Yard moves: This is driving within a restricted, private property area like a carrier terminal, yard or warehouse.
Personal use: sometimes referred to personal conveyance, this is traveling to a hotel or restaurant or spent looking for a nearby, reasonable, safe location.³

Other sub-duties may relate to on-duty or off-duty time, such as fueling or inspections, help clarify how on-duty time is spent.

For fleet managers, this added detail makes it easier to understand how vehicles are being used and helps reduce the risk of misclassified driving time.

Geofencing to validate activity

Geofencing adds another layer of accuracy. By defining locations such as yards, terminals or customer sites, managers can compare where a vehicle is with how its time is logged.

If a driver is inside a yard but logging driving time, that activity may be better classified as a yard move. Identifying those mismatches helps improve record accuracy and reduce the risk of hours of service violations.

Solving the "unassigned mileage" problem

One of the most common compliance issues in HOS tracking is unassigned driving time.

This occurs when a vehicle moves but no driver is logged in. From an HOS compliance standpoint, that creates a gap in the record. Under ELD regulations, carriers must either assign that time to a driver or annotate the record to explain why it remains unassigned.⁴ Those records must also be retained for at least six months.

Unassigned driving time is a compliance risk fleets should not ignore. A growing queue of unidentified miles can point to weak controls and incomplete HOS documentation.⁵

HOS tracking software helps fleets manage this more effectively. In Reveal ELD Logbook, managers can review unidentified miles in a single place, assign them to the correct driver and document the change with a clear audit trail. The system routes the update back to the driver for review and certification.

Maintaining a clean record of unassigned miles shows that the fleet is actively managing its data, not ignoring inconsistencies. That transparency can make a significant difference during roadside inspections or DOT HOS compliance reviews, potentially even impacting CSA scores.

HOS tracking works better when it is part of the bigger picture. See how an integrated fleet management platform can help connect compliance, vehicle data and day-to-day operations in one place.

The operational ROI of HOS visibility

While HOS compliance is the primary goal, near real-time tracking also delivers operational benefits that go beyond regulatory requirements.

Better visibility into detention time

ELD data can help document how long drivers spend at shipping and receiving locations. By tracking arrival, loading and departure times, fleets gain a clearer picture of detention delays.

That data can support detention billing and help identify patterns that impact driver productivity and scheduling.

Reducing hours stress and improving driver retention

Clear, automated HOS tracking also improves the driver experience.

Drivers can see how much time they have left in their day without doing manual calculations. Color-coded timers and alerts provide early warnings before a violation occurs, helping drivers manage their time with more confidence. Managers can even use the Reveal ELD Logbook app to manage hours on their phones.

Reducing uncertainty around HOS rules can lower stress and help drivers focus on the road instead of worrying about their logs.

Smoother roadside inspections

When drivers are stopped for an inspection, having accurate and accessible records matters.

A dedicated inspection mode allows drivers to present their logs quickly, showing the current day and previous seven days without exposing unnecessary information. Logs can be displayed on screen or transferred electronically to enforcement officials.

That process reduces delays during inspections and helps ensure drivers remain compliant with DOT logbook regulations.

Tracking hours of service is about more than maintaining logs

With near real-time data, fleet managers can move from reactive log review to proactive decision-making. That means fewer surprises, fewer violations and a clearer understanding of how the fleet is operating day to day.

See how Verizon Connect helps simplify HOS tracking, support compliance and give fleet managers the visibility they need to make better decisions. Book a demo today.