For commercial fleets, staying compliant with Hours of Service (HOS) regulations is mandatory. That’s where Electronic Logging Devices (ELDs) come in. As more fleets adopt mobile devices to run ELD apps, managing them securely becomes just as important as using them. With the right Mobile Device Management (MDM) solution, fleet managers can ensure these devices stay compliant, locked down, and operational at all times.
But first let’s get the basics clear.
What are electronic logging devices(ELD)?
An electronic logging device (ELD) is a hardware system installed in Commercial Motor Vehicles (CMV) to automatically record a driver’s hours of service (HOS). It connects to the vehicle’s engine to track details including the distance driven, status of engine and how long the engine has been working. Electronic logging devices provide accurate and tamper-proof logs to the fleet managers. This ensures continuous monitoring of the vehicle and the driver.
Understanding ELD Compliance
The ELD compliance mandate is a U.S. federal regulation issued by the Federal Motor Carrier Safety Administration (FMCSA). It requires most commercial motor vehicle (CMV) drivers to use electronic logging devices to record their Hours of Service (HOS).
It was enforced in December 2017 and aims to improve road safety, reduce driver fatigue, and create standardized, tamper-resistant HOS records. It applies to drivers who are required to maintain Records of Duty Status (RODS), including long-haul truckers and carriers involved in interstate commerce.
The ELD mandate sets strict technical and performance standards for ELD systems. Driving without an electronic logging device can lead to penalties, fines ranging from $1,584 to $15,846 per day and the carrier can even be placed out of service.
How Do Electronic Logging Devices Work?
Electronic logging devices work by automatically recording a truck’s driver activity. Once connected to the vehicle’s engine, an ELD monitors and logs data such as engine power status, vehicle motion status, and miles driven. This information is used to record the driver’s duty status, which is important for compliance with federal regulations. ELDs ensure data is gathered in real-time and stored securely, making it difficult to alter records.
What does an ELD do? It simplifies the process of tracking vehicle movements and helps fleet managers make informed decisions. ELDs notify commercial drivers of their remaining driving hours, helping them manage their time more efficiently and avoid violations. ELDs also provide fleet managers with valuable insights into vehicle performance and driver activity, allowing them to make better decisions and improve fleet efficiency. ELDs contribute to safer and more efficient trucking operations by automating compliance and enhancing operational oversight.
Difference between AOBRD and ELD
Automatic Onboard Recording Devices (AOBRDs) were the earlier generation of electronic logging systems used to track a driver’s Hours of Service. The ELD mandate officially phased out AOBRDs by December 16, 2019, requiring all carriers to transition to certified ELDs.
While AOBRDs performed similar functions as ELD systems, they lacked the strict technical and data-transfer requirements introduced with ELDs.
Why are electronic logging devices important?
Electronic logging devices (ELDs) play an important role in modern fleet operations by enhancing compliance, efficiency, and safety. Following are the reasons which make electronic logging devices important and mandatory for use:
a. They ensure compliance with Hours of Service (HOS) regulations
ELDs help drivers and motor carriers automatically track driving time. The HOS regulations prevent driver fatigue by limiting how long someone can stay on the road. ELDs automatically record driving hours, rest periods, and vehicle status and reduce the chance of errors and false records.
b. They help fleet managers with route management
Because ELDs collect real-time data about the vehicle’s location, speed, and movement, fleet managers gain better visibility into the daily operations. This helps them plan more efficient routes, reduce fuel wastage, and respond faster to unexpected issues like traffic or delays and leads to better delivery performance and lower operating costs.
c. They minimize paperwork
Electronic logging devices replace manual logbooks and reduce paperwork. The logs are generated automatically and stored digitally, which not only saves time but also simplifies compliance checks and audits.
d. They provide real-time vehicle diagnostics
Modern ELDs integrate with telematics systems to monitor engine performance, detect faults such as battery problems, or overheating before it leads to a major breakdown and downtime. This proactive insight allows fleets to schedule maintenance in advance and avoid costly downtime on the road.
e. They help improve Compliance, Safety, Accountability (CSA) scores
Electronic logging devices improve CSA scores by providing accurate logging, reducing HOS violations, and encouraging safer driving. The FMCSA assigns CSA (Compliance, Safety, Accountability) scores based on driver behavior, violations, and crash history which in-turn impacts insurance rates and audit risk.
f. They monitor and improve driver behavior
ELD systems collect detailed data on how drivers handle their vehicles. This includes data like harsh braking, overspeeding, rapid acceleration or long idling. Fleet managers can use this information to provide planned feedback and training to the drivers. Over time, this leads to safer driving habits, fewer accidents, and reduced liability for the company.
Can you use a smartphone or tablet as an ELD?
Yes, smartphones and tablets can be used as Electronic Logging Devices (ELDs), provided they meet the technical and compliance requirements set by the Federal Motor Carrier Safety Administration (FMCSA). These include being connected to the vehicle engine, mounted properly, and running FMCSA-approved software.
FMCSA doesn’t mandate a specific device type. Instead, it defines how an ELD should function. This allows mobile devices like smartphones or tablets to serve as fully compliant ELD systems when paired with certified software and proper engine connectivity.
To qualify as an ELD, a mobile device must:
- Connect to the engine via Bluetooth or cable to automatically log engine hours, vehicle movement, miles driven, and power status.
- Accurately track and store Hours of Service (HOS) without allowing drivers to edit driving time. Any other edits must be annotated, and the original log must be preserved.
- Support data transfer to safety officials using telematics (email/web) or local options (USB 2.0/Bluetooth).
- Be FMCSA-registered and listed on the official ELD registry, which includes only those that meet all technical specifications.
- Be securely mounted in a fixed, visible position within reach of the driver during operation. It cannot be loose or handheld while the vehicle is in motion.
How Scalefusion MDM helps ensure FMCSA-compliant mobile ELD usage
To comply with FMCSA’s rules, mobile ELDs must be securely mounted, engine-connected, tamper-resistant, and displayable during inspections. Scalefusion MDM enables fleet managers to meet these requirements while transforming smartphones and tablets into secure, business-ready electronic logging devices.
1. Lockdown to the ELD app (Supports foreground display and driver access control)
With adherence to FMCSA mandate, Scalefusion allows fleet managers to lock Android/iOS devices into single-app mode, keeping the ELD software in the foreground at all times. All other apps and device functions are restricted, ensuring the driver cannot exit or tamper with the logging software.
2. Disable hardware keys and keep screen active (Prevents accidental shutdowns)
To prevent drivers from unintentionally closing the ELD app, Scalefusion disables physical buttons and ensures the screen remains on during operation. This eliminates disruptions to duty status tracking and keeps the ELD visible on screen as per FMCSA display rules.
3. Remote configuration and support (Ensures always-on compliance)
Scalefusion allows over-the-air (OTA) lockdown, updates, and configuration, so fleets can keep ELDs compliant without physically retrieving them. Features like Remote View and VoIP troubleshooting ensure fast issue resolution, minimizing ELD downtime.
4. Real-time tracking and geofencing (Enhances operational control)
Scalefusion supports real-time GPS tracking and custom geofencing, giving managers better oversight of fleet movement and route adherence. While not mandated by FMCSA, this supports broader safety, dispatch, and audit readiness goals.
5. Kiosk mode for strict app control (Ensures consistent data logging)
ELDs must be up and running as soon as the engine is on. Scalefusion’s kiosk mode locks devices into either single- or multi-app mode, ensuring the ELD and related apps (e.g., inspection reports, navigation) are always running. This guarantees uninterrupted data capture and HOS compliance.
6. ELD app and OS update management (Maintains functionality and security)
Scalefusion lets admins remotely deploy and update ELD apps and push OS updates during off-hours, reducing disruptions. This helps ensure the ELD stays functional, secure, and compliant with evolving FMCSA standards.
7. Speed-based app locking (Promotes safe app usage while driving)
To discourage distracted driving, Scalefusion can lock apps based on vehicle speed. When the truck crosses a predefined threshold, non-essential apps are disabled—allowing only the ELD app to remain functional and visible.
8. Remote troubleshooting and screen mirroring (Reduces downtime)
In case of ELD malfunction, Scalefusion enables remote screen viewing, VoIP support, and session logging to quickly diagnose and fix issues. This reduces time off-road and helps drivers stay compliant.
9. Automated workflows (Streamlines compliance)
Fleet IT teams can set up automated tasks like app updates, lockdown settings, or compliance alerts based on usage patterns. This ensures consistency, reduces manual errors, and keeps ELDs aligned with FMCSA standards across all vehicles.
Turn every mobile device into a compliant ELD with Scalefusion
Stay FMCSA-compliant without the hassle.
FAQs
1. What is an ELD in trucking?
An ELD, or Electronic Logging Device, is used in trucking to automatically record a driver’s hours of service (HOS). It ensures compliance with federal regulations and improves overall fleet management.
2. How much does an electronic logging device cost?
The cost of an electronic log device varies but typically ranges from $200 to $800 for the device, plus an additional $20 to $50 per month for subscription and service fees. There could be additional expenses associated with licensing apps and MDM solutions.
3. Is an ELD a GPS tracker?
An ELD is not a GPS tracker, but it does include GPS functionality. It records location data to ensure accurate tracking of a truck’s movement and compliance with HOS regulations.
4. Are ELDs mandatory for all trucks?
In the countries like USA or Canada, yes, most commercial trucks are required to use ELDs to comply with the Federal Motor Carrier Safety Administration (FMCSA) regulations, except for certain exemptions such as vehicles older than the model year 2000.
