ELD Compliance
Made Easy
The federal ELD mandate requires most commercial drivers to record Hours of Service electronically. ERETHELD ERS238, integrated with your ESSE portal, makes staying compliant automatic — no paper logs, no guesswork.
The FMCSA ELD Mandate
The Electronic Logging Device (ELD) mandate was established by the FMCSA under 49 CFR Part 395. Congress directed FMCSA to require ELDs to improve road safety by reducing Hours of Service (HOS) violations related to fatigued driving.
Timeline of the mandate
- February 2016 — Final ELD rule published in the Federal Register
- December 18, 2017 — ELD mandate took effect; automatic on-board recording devices (AOBRDs) grandfathered for existing users
- December 16, 2019 — Full enforcement began; AOBRD grandfather clause expired; all applicable drivers required to use FMCSA-registered ELDs
- Present — Ongoing enforcement with roadside inspections; HOS violations remain in the top 5 most cited violations nationally
The ELD rule applies to commercial motor vehicle (CMV) drivers who are required to maintain Records of Duty Status (RODS) under 49 CFR 395.8. Both property-carrying and passenger-carrying CMV drivers are covered, with certain limited exemptions.
Who Needs an ELD?
The mandate covers a broad range of commercial drivers. Understanding the requirements — and the exemptions — helps carriers avoid costly violations and out-of-service orders.
CDL Drivers — Interstate Commerce
Any CDL driver operating in interstate commerce who is required to keep Records of Duty Status (RODS) must use an FMCSA-registered ELD. This is the broadest category and covers the vast majority of over-the-road drivers.
- Interstate trips crossing state lines
- Drivers who drive more than 8 hours in a day
- Drivers exceeding the short-haul 150-air-mile radius
Property-Carrying CMVs Over 10,001 lbs
All property-carrying commercial motor vehicles with a gross vehicle weight rating (GVWR) or gross combination weight rating (GCWR) of more than 10,001 pounds are subject to the ELD mandate if the driver must keep RODS.
- Semi-trucks, box trucks, flatbeds
- Tractor-trailers in interstate commerce
- Heavy-duty pickup trucks towing trailers exceeding limits
Passenger-Carrying CMVs
Passenger-carrying CMVs are covered when they meet the size thresholds for requiring RODS. This includes commercial buses and charter vehicles used in interstate passenger transport.
- Vehicles designed to transport 9 or more passengers for hire
- Vehicles designed to transport 16 or more passengers (not for hire)
- School buses operating interstate routes
Exemptions — You May Not Need an ELD
Certain operations are exempt from the ELD mandate by regulation. If your operation qualifies for an exemption, RODS may still be required but can be maintained on paper logs.
- Driveaway-towaway operations — vehicles being driven as cargo
- Short-haul exemption — drivers operating within 150 air miles of their work reporting location, returning to the same location each day, and not exceeding 11 hours of driving
- 8-day rule — drivers who do not exceed RODS requirements more than 8 days in any 30-day period
- Pre-2000 engine vehicles — CMVs with engines manufactured before the model year 2000, where ELD connection is not technically feasible
ERETHELD ERS238 Specifications
The ERETHELD ERS238 is an FMCSA-registered ELD device that plugs into your truck's OBD-II or ECM diagnostic port and pairs with a smartphone app to record HOS automatically.
| Specification | Value |
|---|---|
| Device name | ERETHELD ERS238 |
| FMCSA Registration | Yes — certified and listed on the FMCSA ELD registry |
| Connection | OBD-II / ECM diagnostic port (J1939 and J1708) |
| Display | iOS or Android smartphone app |
| Data transfer | Telematics (web portal) + USB / Bluetooth local transfer |
| GPS accuracy | ±5 meters |
| ELD provider website | eretheld.com |
| Monthly cost | $15 – $25 per driver / month |
| ESSE portal integration | Yes — log in with ESSE portal credentials |
| Operating temperature | -40°F to 185°F (−40°C to 85°C) |
Installation Guide
Getting started with the ERETHELD ERS238 takes under 15 minutes. Follow these steps to connect your device and start recording HOS automatically.
The OBD-II port is typically located under the dashboard on the driver's side, within 18 inches of the steering column. On older trucks with a J1939 or J1708 interface, it may be located near the fuse panel. Consult your vehicle manual if unsure.
Insert the ERETHELD ERS238 device into the OBD-II port. The device will power on automatically when the truck's ignition is on. A solid LED indicator confirms the device is receiving power.
Download the ERETHELD ELD app from the Apple App Store or Google Play Store. Search for "ERETHELD" and install the official app from ERETHELD LLC.
Open the ERETHELD app and tap "Connect Device." Enable Bluetooth on your phone and select the ERS238 from the list of nearby devices. The device will appear as "ERETHELD-XXXXX" where XXXXX is the last 5 characters of the device serial number.
Use your ESSE Inc portal username and password to authenticate in the ERETHELD app. Your driver profile, carrier association, and vehicle assignments will sync automatically from the ESSE platform.
Verify your CDL number, license state, CDL class, and endorsements within the app. Confirm your home terminal address and time zone — both are required for accurate HOS calculations.
Associate your truck with the ELD by entering the vehicle VIN number and license plate. If your carrier has already added the vehicle through the ESSE TMS, it will appear in your vehicle list for easy selection.
Move the truck at least 5 mph. The duty status should automatically switch from "On Duty Not Driving" to "Driving" within seconds. Confirm GPS coordinates are updating on the app map. After stopping, verify that elapsed driving time and miles are being recorded accurately. Your carrier's admin can verify data is appearing in the ESSE fleet dashboard.
Data Transfer Methods
When a DOT officer requests your ELD records during a roadside inspection, you must be able to transfer your data immediately. The ERETHELD ERS238 supports both telematics and local transfer.
Method 1: Telematics Transfer
Telematics transfer sends your ELD data wirelessly to the FMCSA inspection portal and directly to the officer's system. This is the fastest and most reliable method for roadside inspections and requires no physical cable or drive.
How it works:
- Officer requests a data transfer and provides a DOT inspection ID or email address
- Open the ERETHELD app and tap "Transfer Data" → "Telematics"
- Enter the officer's DOT inspection code or email when prompted
- Tap "Send" — data transmits wirelessly within seconds
- Officer receives the data on their inspection device or web portal
- A confirmation code is displayed in your app for the officer to verify receipt
Method 2: USB or Bluetooth Transfer
If telematics is unavailable (no cellular connection) or the officer prefers local transfer, you can send ELD records directly to the officer's device via USB drive or Bluetooth. FMCSA regulations require ELDs to support both methods.
USB transfer steps:
- Insert a standard USB flash drive into the USB port on the ERS238 unit
- Open the ERETHELD app and tap "Transfer Data" → "USB"
- Select the date range (current day is pre-selected)
- Tap "Export to USB" — file transfers in ELD standard output format
- Remove the USB drive and hand it to the officer
Bluetooth transfer steps:
- Ensure officer's device Bluetooth is enabled
- Tap "Transfer Data" → "Bluetooth" in the ERETHELD app
- Select the officer's device from the pairing list
- Confirm transfer on both devices
FMCSA Registered ELD List
The FMCSA maintains a public registry of all self-certified ELD devices. Carriers and drivers must use only ELDs that appear on this list — using an unregistered device is a federal violation.
The FMCSA ELD registry is publicly available at eld.fmcsa.dot.gov/List. The ERETHELD ERS238 is listed on the FMCSA registered ELD registry. You can search by provider name "ERETHELD" to verify registration status at any time. FMCSA does not test or certify ELD devices directly — providers self-certify compliance with 49 CFR Part 395, Subpart B, and are responsible for meeting all technical specifications.
What the FMCSA registry tells you
- Provider name and device model
- Date of self-certification
- Whether the device is currently active or revoked
- Contact information for the ELD provider
If an ELD is removed from the registry (revoked), carriers have a limited period to switch to a compliant device. ESSE Inc monitors ELD compliance status and will notify affected carriers through the portal if any change affects their fleet.
HOS Rules — Property Carrier
Hours of Service rules for property-carrying CMV drivers. These are the limits your ELD enforces automatically. Violations trigger on-screen alerts before you reach a limit.
| Rule | Property Carrier Limit |
|---|---|
| Driving limit | 11 hours of driving after 10 consecutive hours off duty |
| 14-hour duty window | Cannot drive beyond the 14th hour after coming on duty (clock does not stop for breaks) |
| 30-minute rest break | Required after 8 cumulative hours of driving; must be in off-duty or sleeper berth status |
| Weekly driving limit | 60 hours in 7 consecutive days or 70 hours in 8 consecutive days |
| 34-hour restart | 34 consecutive hours off duty resets the 7/8-day clock; must include two 1–5 AM periods |
| Sleeper berth split | 8 hours in sleeper berth + 2 hours off duty (or in sleeper); 2-hour period pauses 14-hour window |
| Off-duty required before driving | 10 consecutive hours off duty before the 11-hour drive period begins |
Passenger carrier rules differ. Short-haul exemptions may apply. Adverse driving conditions may allow +2 hours. Always consult FMCSA regulations at fmcsa.dot.gov for the latest requirements.
Ready to Get ELD Compliant?
Order the ERETHELD ERS238 today and connect it to your ESSE portal for seamless HOS tracking, fleet visibility, and DOT inspection readiness.