FAQ Get answers to ELD-related questions
FMCSA provides answers to frequently asked questions about ELDs. Consult these FAQs when you have an ELD-related question, as the answer may already be at your fingertips.
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Edits which reduce the total amount of driving time automatically recorded by the ELD are not allowed. Unidentified driving time may be transferred to a driver and driving time may be transferred between drivers in a team driving scenario, but driving time may not otherwise be re-assigned and may never be cumulatively changed. Per 49 CFR 395.30(f), the ELD must keep the original, unedited record, along with the edits. See sections 4.3.2.8.2 of 49 CFR part 395, subpart B, Appendix A for more information on editing limitations.
Events of type 2 (intermediate log), 5 (login/logout), 6 (CMV power-up/shut-down) or 7 (malfunction/diagnostic) may not be edited in any way. This includes assumption of logs from the unidentified driving profile. If unidentified driving time gets assumed by a driver, the automatically generated change in duty status events would be associated with the driver, but any intermediate logs would not. Since the ELD rule does not allow for intermediate events assumed by the driver to be made inactive, the ELD provider may program the ELD to annotate the events with "assumed by driver [name of driver]".
All power up and shut down events for all commercial motor vehicles (CMVs) used by the driver within the time period that is being requested should be included, including those events that belong to another driver (e.g., if the driver was not using that CMV on that day).
What data does the electronic logging device (ELD) need to log when there is an unidentified driver?
When a driver does not log in to the ELD and does not respond to the ELD visual and audible prompts, the ELD must record accumulated driving and On-Duty Not-Driving time in accordance with the ELD defaults (see section 4.4.1 of 49 CFR part 395, subpart B, Appendix A). When more than 30 minutes of driving in a 24-hour period accumulate in the Unidentified Driver (UD) profile, the ELD data diagnostic indicator must be turned on across all drivers logged into that ELD for the current day and the following 7 days. Other events that must be associated with the Unidentified Driver (UD) profile include the commercial motor vehicle (CMV) engine power up and shut down and power compliance monitoring. The ELD must not allow entry of any information into the ELD other than a response to the login prompt.
The Event Log List for the Unidentified Driver Profile may be found in section 4.8.2.1.10.
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.


