Part of the fun of technology is getting a new vocabulary of acronyms. The latest for automated driver logs is ELDs - or electronic logging devices. According to some reports, ELDs are not only better than Electronic On-board Recorders (EOBRs), but they cost less. That's progress!
ELDs and EOBRs - What's the Difference?
Part of the fun of technology is getting a new vocabulary of acronyms. The latest for automated driver logs is ELDs - or electronic logging devices. According to some reports, ELDs are not only better than Electronic On-board Recorders (EOBRs), but they cost less. That's progress

Dave Kraft
This does raise a question, though: Where do these terms come from? I did some research, and the number of terms that may also apply to ELD and EOBR type devices is more than you might expect. Here is the list:
EOBR - Electronic On-Board Recorder. The trucking industry and fleet management system providers have been using this term for automated driver logs since the early 2000s. The term is also defined in the Federal Motor Carrier Safety Administration's (FMCSA) recent 395.16 "Electronic On-Board Recorders for Hours of Service Compliance" regulation, although that regulation will not go into effect until June 2012.
ELD - Electronic Logging Device. This is a recent term, whose origin is unknown. I think some people like it because they are not sure about the "recorder" part of an EOBR, but the "logging" of an ELD is okay. Since ELDs are not defined in any regulation, you would need to ask if they are compliant with 395.15 or 395.16.
EDL - Electronic Driver Logs. This is another recent term and it is unclear whether it implies an FMCSA-compliant device or application.
AOBRD - Automatic On-Board Recoding Device. "AOBRD" - Ugh! Not a very popular term. It is based on FMCSA's 395.15 regulation published in 1988. This regulation is in effect today. Every EOBR, ELD, EDL that is compliant with DOT regulations for automated driver logs is really an "AOBRD." REALLY!
Computer Assisted Logs. This is also a recent term with unknown origin, but it is generally agreed that these are not compliant with any regulation. Instead, drivers simply use a computer or a smart phone to record their time and then produce a nice printout instead of handwriting logs. If they do not have a printer, then they will have to handwrite their logs if they get stopped.
Digital Tachograph. This is an automated, tamper proof recorder of driver logs that is used throughout Europe and in many other countries around the world. Some people may call it the European EOBR, but Europeans would call it a "tacho."
EDR - Event Data Recorder, aka HV EDR - Heavy Vehicle EDR. ] This is the accident "black box" for trucks. Some people think EDR and EOBR are same thing but they are really different devices. HV EDRs are not defined in regulation, but that could change in a year or two as the U.S. Department of Transportation (DOT) is looking at that now. There is aSociety of Automotive Engineers (SAE) standard, J2728, that was published in 2010 that provides a specification for these systems. Also, the National Transportation Safety Board has been a longstanding strong advocate of installing EDRs in commercial vehicles.
Now that we have all that understood, the next big question is: What do these things cost? What is the difference between the low cost version and full blown high end versions? I am going to have to get back to you on that - for a future blog post.
Reposted with permission from the Qualcomm OnQ blog. Dave Kraft is a director in Qualcomm Enterprise Services' strategic business development group and currently serves as chairman for ATA's Technology and Maintenance Council EOBR task force in developing industry guidelines for electronic onboard recorders.
More Fleet Management

HDT Honors the Best New Products of 2025 at TMC [Photos]
Heavy Duty Trucking's Top 20 Products awards recognize the best new products and technologies. Check out the award presentations at the 2026 Technology & Maintenance Council annual meeting.
Read More →
Detroit Engines: Trusted Performance, Built for What's Next
The Detroit® Gen 6 engine platform proves that real progress doesn’t require a complete redesign. Built on 20 years of trusted technology, these engines are designed for efficiency, stronger performance, and greater reliability than before. And they do it all while complying with 2027 EPA standards on every mile.
Read More →
Q&A: What's Real in Advanced Truck Tech? ACT Expo's Erik Neandross Weighs In
The 2026 ACT Expo is focusing heavily on what organizer Erik Neandross calls trucking's digital frontier. This interview excerpt dives into artificial intelligence, zero-emission vehicles, and tips to make sense of it all.
Read More →
Trucking's Digital Frontier: AI, Connected Vehicles, Alternative Fuels and More
There's an amazing amount of new technology for trucking out there. For fleets, the challenge is figuring out what’s real, what’s hype, and what’s worth investing in.
Read More →
What's Real in Advanced Truck Technology? ACT Expo's Erik Neandross Weighs In
Artificial intelligence, the software-defined vehicle, telematics, autonomous trucks, electric trucks and alternative fuels, and more in this HDT Talks Trucking interview
Read More →
ACT: Trucking Volumes Rise, Capacity Tightens as Fuel Prices Cloud Outlook
ACT Research data shows volumes hitting a four-year high and supply-demand balance strengthening, but higher oil prices are undercutting tariff relief and tempering optimism.
Read More →
Wabash Teams Physical Security With Digital Tech For Better Cargo Visibility
The patent-pending cargo solution integrates a digitally connected cargo door and an intelligent locking system with the TrailerHawk.AI technology platform.
Read More →
From Diesel Prices to Cyberattacks: How the Iran War Is Affecting Trucking
The impact of the Iran conflict extends beyond fuel costs, bringing more fraud and cybersecurity risks to the trucking industry.
Read More →
ATA’s Spear Warns Fuel Prices, Trade Policy, and Global Conflict Could Stall Trucking Recovery
Speaking at the TMC Annual Meeting in Nashville, ATA President Chris Spear said trucking faces mounting pressure from rising fuel prices, geopolitical instability, and uncertainty around trade policy.
Read More →
New Entrants, Chameleon Carriers, and Safety: Is It Too Easy to Start a Trucking Company?
More than 100,000 new trucking companies enter the industry each year, but regulators manage to audit only a fraction of them. That churn creates opportunities for inexperienced startups — and for “chameleon carriers” that shut down after safety violations and reappear under new identities. Read more from Deborah Lockridge in this commentary.
Read More →
