GotQuestions? ELDs and Telematics

Q. What is an ELD?

June 6, 2017

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A. ELD = Electronic Logging Device

An electronic logging device (ELD) is a device that attaches to a commercial motor vehicle (CMV) to synchronize with the engine and record Hours of Service (HOS).

As defined by the Federal Motor Carrier Safety Administration, a commercial motor vehicle (CMV) is a selfpropelled or towed motor vehicle used on a highway for interstate commerce, transporting passengers or property, and meeting certain criteria for weight and design or use.

The ELD facilitates considerably more accurate recording of all driver activity by providing “snapshots” of the vehicle’s location throughout the driver’s day. ELDs automatically record driving time and monitor information such as location, engine hours, vehicle movement, and miles driven.


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