How does ELD work?

Answer: In an ELD Mandate compliant vehicle, an Log device is installed to track HOS data. The device is a GPS tracker with wireless communication capabilities. This device connects with the vehicle’s engine to automatically transmit data whenever the vehicle is in operation. It also records data entered by the driver. It must record the following information to be compliant:

OFF - off duty
SB - sleeper berth bt
D - driving
On - on duty but not currently driving Whenever a driver changes their status, the device also automatically records the driver’s location (city and state).

What driver status designations can ELD record?

Answer: Drivers are responsible for recording their status through their driving log software. The possible designations are:

Can an electronic logging device (ELD) be on a smartphone or other wireless device?

Answer: Yes. The ELD Rule accommodates the use of smartphone (Android/iPhone) and other wireless devices as ELDs—as long as they meet the necessary technical specifications. If you’re not sure if a specific ELD qualifies, check the Registered ELDs list from FMCSA.

What is an ELD?

Answer: An ELD (Electronic Logging Device) is technology that automatically records a driver’s driving time and other aspects of the hours-of-service (HOS) records. The ELD monitors a vehicle’s engine to capture data on whether the engine is running, whether the vehicle is moving, miles driven, and duration of engine operation (engine hours). With an ELD, law enforcement can review a drivers hours of service by viewing the ELD’s display screen, a printout from the ELD, or retrieving data electronically from the ELD device.

When did the ELD Mandate go into effect?

Answer: The first deadline for the FMCSA’s ELD mandate was December 18th, 2017. All drivers and carriers subject to the ELD mandate had to have either an ELD or an AOBRD installed in their vehicle. After December 16th, 2019, AOBRDs could no longer be used to be compliant with the ELD mandate. If your fleet is still using AOBRDs, you are no longer compliant with the ELD mandate.