FMCSA - Federal Motor Carrier Safety Adminstration
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ELD Providers

FMCSA is committed to providing the information you need to create compliant ELDs.

Make sure your device meets the technical specifications in the ELD rule. Log into your ELD Provider Account to access important information on developing and testing your device. If you have not yet registered with FMCSA, you can request an account .

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Request a User Account

Get access to vital technical information, including FMCSA’s ELD Interface Control Document and Web Services Development Handbook, public key, and more. Request your user account and get access to the information you need to create a compliant ELD.

Request an Account

Test Your Device

Providers must certify that they have tested their device and that it meets all technical specifications detailed in the ELD Rule. To assist with this, FMCSA offers optional technical resources, including a File Validator which is now available.

Validate Your File

Register and Manage Your ELD

Once you have verified that your ELD is compliant, you can self-certify and register your device with FMCSA. These devices will appear on the Self-Certified ELD List that truck and bus companies will refer to when shopping for the ELD that best meets their business needs.

View the ELD List

Telematics or Local: Select Your Data Transfer Option

ELD data must pass through FMCSA’s systems before it can be reviewed by enforcement personnel. Compliant ELDs must offer at least one complete set of the data transfer options listed below. Data Transfer fact sheets are available to assist you.

Download Fact Sheet

Option 1: Telematics

Web Services

Uses internal internet connection to upload data file to FMCSA servers.


Attaches ELD file to an email message sent to an FMCSA-specified address.

Option 2: Local Transfer


ELD file locally transferred to laptop using USB keypad to encrypt and decrypt data.

Bluetooth ®

Upload ELD file to FMCSA servers via Bluetooth-enabled internet connection.

Test Your ELD Output Files

Does your ELD output file meet the technical specifications in the ELD rule? Will it be accepted by FMCSA’s systems? Find out by running it through our File Validator.

See the safety official view of your ELD output files. Log into the ELD Provider Portal for more details.

Frequently Asked Questions: Technical Specifications

The following questions and answers are intended to aid manufacturers of ELDs in providing devices to motor carriers that are fully functional and in compliance with the ELD rule.

If the vehicle does not have an ECM or the ECM does not provide all the information required, it must be acquired using an independent source apart from the positioning services described under Section of the appendix and must meet accuracy levels laid out in the rule. Global Positioning Systems cannot be used to identify the vehicle’s motion status.

Please note that if there is a means for retrieving data from the ECM, the provider is obligated to use that means (for example, using a synthesized odometer or entering into an agreement with an OEM to access proprietary information). If FMCSA is made aware that a provider has chosen not to undertake the effort to secure data from the ECM that is, in fact, retrievable, the device would be considered non-compliant and removed from the self-certified and registered ELDs.

The rule calls for storing date/time information using UTC and transmitting data in the data file using the UTC offset in effect at the carrier’s home terminal. This means that when daylight saving’s time is in effect at the home terminal, it should be included in the UTC offset. It would not be included in the UTC offset if daylight savings time is not in effect at the home terminal.

Deleting records is not permitted. To correct errors, drivers must be able to edit, enter missing information into, and annotate the ELD records. The original record must be retained and receive an inactive status.

If a driver forgets to select special driving categories (Personal Conveyance or Yard Move) at the beginning and/or end of the special driving category, then the driver can make an annotation in the ELD record identifying the start and end of the special driving category. The ELD rule does not allow automatically recorded driving time to be shortened for the purpose of correcting special driving category selection.

If the driver unplugs an ELD from the ECM and later plugs the ELD back into the ECM, the ELD must identify any odometer jump in between as a malfunction (see Table 4 of Appendix A to Subpart B of Part 395). In addition, if the ECM is not disconnected, however connectivity is lost for more than 30 minutes in a 24-hour period, an engine synchronization malfunction must be recorded.

Yes. Once the unassigned driving time has been reviewed and only certain records were attributable to and assumed by a driver, in accordance with 49 CFR 395.32, it is expected that some events will remain associated with the unidentified driving profile. These event types include intermediate logs, power-up/shut-down, and malfunction/diagnostic, which cannot be edited.

Read More FAQs

News for ELD Providers

To subscribe to ELD Provider Updates, register for an ELD Provider Account .

ELD Update: New Technical Specification FAQs

November 8, 2019

FMCSA has published additional frequently asked questions to clarify certain sections of the technical specifications in the ELD rule.

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ELD Update: Keep Your ELD Listing Up-To-Date

November 8, 2018

Motor carriers and safety officials rely on the information you are required to provide about your device. Make sure you keep this information updated with FMCSA.

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Visit the new ELD Home Page

September 5, 2018

Visit the new centralized online location for ELD news and updates for ELD providers, motor carriers and drivers, and enforcement personnel.

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View Your Device’s Data Transfer Summary Report

May 15, 2018

FMCSA has created a new tool to assist ELD providers in tracking their devices’ ability to successfully transfer ELD output files to the Web Service.

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Is Your Device Compliant?

March 10, 2018

Make sure your device follows all the technical specifications in the ELD rule so your device stays on FMCSA’s list of self-certified and registered devices.

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ELDs are GO For Data Transfer

December 18, 2017

Carriers across the country will be using your ELDs to transfer data to FMCSA safety officials.

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Enforcement View Now Available

December 4, 2017

It is now possible for ELD providers to see the same view as safety officials for select ELD output files that have been successfully submitted to FMCSA.

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Web Services Now Available for Testing

October 20, 2017

Final Web Services endpoints and sample identification values are also available in the ELD Provider Portal.

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Updated Tech Specs and New FAQs

October 4, 2017

Read important information to help ELD providers stay compliant with the ELD rule.

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ELDs and Public Keys

August 23, 2017

Provider certificates, which must include a public key, are vital to completing both the telematics and local transfer options for submitting ELD data. Read more about public keys.

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Visit Our New Homepage

July 7, 2017

FMCSA has created a new webpage specifically designed to help ELD providers access the information they need to create compliant ELDs.

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View All Updates

Access the ELD Provider Portal

FMCSA is committed to providing the information you need to create compliant ELDs.

Log into the ELD Provider Portal to:

  • Download the ELD Interface Control Document and Web Services Handbook and WSDL/XSD
  • Obtain the FMCSA email address needed for email data transfer and end points needed for web services transfer
  • See the enforcement view of your test ELD files
  • Access a summary report of each of your device’s data transfer activity
  • Register your device or update your device’s information to keep your listing on the ELD list up-to-date
Log Into the ELD Provider Portal