Fewer data entry errors equate to fewer roadside inspection violations, minimizing the effect on your company’s safety record.
5 Differences Between Grandfathered AOBRDs and ELDs
Training on the operational differences between AOBRDs and ELDs is a critical component of the plan to help reduce the frustrations your drivers and operations department may experience on the first few days of your ELD launch.

An inspector shows a driver how to transfer his hours of service log at roadside – something that you have to be able to do with ELDs that you didn't with AOBRDs.
Photo courtesy CVSA
Motor carriers operating grandfathered automatic onboard recording devices (AOBRDs) to record their drivers’ hours of service must switch to an approved electronic logging device (ELD) by Dec. 16, 2019.
With little time remaining, carriers that want to minimize stress should plan to make the change sooner rather than later. Training on the operational differences between AOBRDs and ELDs is a critical component of the plan to help reduce the frustrations that your drivers and operations department may experience on the first few days of your ELD launch.
Some of the more significant differences include:
1. Log-in Procedures
When a driver logs into an ELD, he or she is prompted to accept or reject unassigned driving time on the device. Any accepted time is integrated into the driver’s records. Rejected time must be addressed by the back office by either assigning it to a specific driver or explaining through an attached comment why it could not be assigned.
AOBRDs, on the other hand, do not require annotation of the unassigned driving time when it cannot be attributed to a specific driver. The time could be attributed, instead, to a ghost account, which is not allowed with an ELD.
2. Driving Status
AOBRDs allow the motor carrier to determine when an event is defined as driving (based on speed and distance traveled). But ELDs are more stringent and programmed to switch to the driving status when the vehicle reaches up to 5 mph unless the driver selects one of two categories: personal use or yard moves.
Typically, when using these two categories while operating an AOBRD, drivers must log out of the device and then edit the time as on-duty, not driving.
3. Editing Options
Unlike AOBRDs, an ELD system provides drivers with full editing rights, except for the automatic recording of all drive time. All other entries must be editable by the driver. Also, any edits made in the back office must be approved by the driver before becoming a part of his or her record.
Editing topics to reinforce with drivers include:
Acceptable/unacceptable edits,
How to make edits, and
How to accept or reject back-office edits.
4. Data Transfer
During a roadside inspection, ELD log data is transferred directly to the officer. Drivers are expected to know the device’s transfer method (telematic or local transfer) and how to use the options within the method. The officer has the option of asking the driver to display or print the logs.
With AOBRDs, the driver is only required to show the officer the display. If the officer wants a copy of the records, the driver or carrier has up to 48 hours to provide them through any means.
In the event of a DOT audit, back-office personnel must be trained on this same ELD data transfer method. An investigator will expect a carrier to forward the ELD records using one of the transfer methods.
5. Generic Accounts
ELD systems do not allow for the use of generic or “ghost” accounts. Each account must have an actual person assigned to it, except for the unassigned driving time account. Driver accounts must include the driver’s license number to validate the driver. This means that carriers need to develop procedures for dealing with movements made by drivers without ELD accounts, sich as mechanics or supervisors.
Create A Comfort Level Beforehand
Employees should be introduced to the equipment and its features before the day of conversion. This familiarity with your ELD will help reduce the number of entry errors. Fewer errors equate to fewer roadside inspection violations, minimizing the effect on your company’s safety record.
More Safety & Compliance

Fleetworthy Expands Expedited Inspection to 5 States
Following its industry-first launch in Nevada, Fleetworthy’s automated inspection technology is now live in California, Michigan, Vermont, and Maine.
Read More →
Crossing State Lines in a Light-Duty Work Truck? Check These Rules First
Crossing state lines in a lighter work truck? J.J. Keller's Kathy Close explains when IRP registration, trip permits, and towing rules come into play.
Read More →
GeoFencing Adds to Your Truck Security Arsenal
Geofencing is a familiar fleet tool today, but its early adoption marked a major shift in vehicle tracking, route monitoring, and the debate over employee privacy.
Read More →From Our Partners

Recalls You Need to Know About in October 2026
In October 2026, what recalls might impact your fleet? Work Truck has the answers in this comprehensive overview of recent NHTSA recalls.
Read More →
Construction Fleets Show Telematics Adoption Alone May Not Reduce Driving Risk
SambaSafety found construction fleets monitor roughly 92% of their vehicles but recorded the highest severe speeding rate among industries studied.
Read More →
Lytx Launches 360 Hub Kit for Expanded Fleet Camera Visibility
Lytx’s new AI-ready gateway and HD auxiliary camera ecosystem, the Lytx 360 Hub Kit, extends visibility across side, rear, cargo, and blind-zone views to help fleets see more and respond faster.
Read More →
Mack Defense Achieves Cybersecurity Maturity Model Certification Level 2
After an assessment conducted by an authorized Certified Third-Party Assessment Organization (C3PAO), Mack Defense has achieved Cybersecurity Maturity Model Certification (CMMC) Level 2.
Read More →
When Work Trucks Under 26,001 Pounds Need IRP Registration
Think trucks under 26,001 pounds are automatically in the clear when it comes to IRP? Not always. Learn where lighter vehicles can still run into trip permit, apportioned registration, and IFTA compliance requirements when crossing state or provincial lines.
Read More →
Smith System Wants Work Truck Fleets to Look Beyond the Driver Alert
Smith System’s new Driver Risk Management program is built to help mixed work truck fleets turn telematics alerts and observations into specific behaviors, coaching actions, and measurable follow-up.
Read More →
Volvo Trucks Releases New Safety Recommendations for Traveling with Pets
One of the most important recommendations for professional drivers traveling with pets is to ensure pets are properly restrained while the truck is moving. Other tips are available in the new guide from Volvo Trucks North America and Center for Pet Safety.
Read More →



