Browse Definitions:

electronic logging device (ELD)

Contributor(s): Matthew Haughn

An electronic logging device (ELD) is electronic hardware used to record the working hours of a commercially-operated motor vehicle. In many countries, ELDs have replaced paper logs as well as electronic on-board recorders (EOBR), which lacked standardization. The data logged by an ELD typically includes: when the engine is running, the duration of operation, when the vehicle is in motion and the number of miles driven. This is data is stored in a standardized format that simplifies upload and review by companies or law enforcement officials.

ELDs are commonly used to record the authorized use of commercial vehicles, prevent employees from using vehicles for personal use and restrict time in operation to the allowed hours of service (HOS). The use of ELDs helps ensure compliance with HOS legislation and reduce accidents caused by driver fatigue. Companies may also use real-time locations systems (RTLS) or automatic vehicle locators (AVL) to ensure compliance with company policy and HOS legislation.

In the United States, the Federal Motor Carrier Safety Administration (FMCSA) added the ELD rules to the Federal Motor Carrier Safety Regulations (FMCSRs). The FMCSA mandated a gradual phase-in with a compliance date of December 18, 2017 for the installation date of ELDs and December 2019 for compliance with regulations.

This was last updated in February 2017

Continue Reading About electronic logging device (ELD)

Join the conversation

1 comment

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

Will implementing ELD will reduce fatigue related accidents?


File Extensions and File Formats

Powered by:


  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

  • pure risk (absolute risk)

    Pure risk, also called absolute risk, is a category of threat that is beyond human control and has only one possible outcome if ...


  • federated identity management (FIM)

    Federated identity management (FIM) is an arrangement that can be made among multiple enterprises to let subscribers use the same...

  • cross-site scripting (XSS)

    Cross-site scripting (XSS) is a type of injection security attack in which an attacker injects data, such as a malicious script, ...

  • firewall

    In computing, a firewall is software or firmware that enforces a set of rules about what data packets will be allowed to enter or...



  • business continuity and disaster recovery (BCDR)

    Business continuity and disaster recovery (BCDR) are closely related practices that describe an organization's preparation for ...

  • business continuity plan (BCP)

    A business continuity plan (BCP) is a document that consists of the critical information an organization needs to continue ...

  • call tree

    A call tree -- sometimes referred to as a phone tree -- is a telecommunications chain for notifying specific individuals of an ...


  • all-flash array (AFA)

    An all-flash array (AFA), also known as a solid-state storage disk system, is an external storage array that uses only flash ...

  • volume manager

    A volume manager is software within an operating system (OS) that controls capacity allocation for storage arrays.

  • external storage device

    An external storage device, also referred to as auxiliary storage and secondary storage, is a device that contains all the ...


  • hybrid hard disk drive (HDD)

    A hybrid hard disk drive is an electromechanical spinning hard disk that contains some amount of NAND Flash memory.