FMCSA-ELD-395-Q067(2022-03-10)

Question: When an event is recorded by an electronic logging device (ELD) component not connected to a powered-on power unit, is the information pertaining to the power unit required?

Guidance: If the driver logs into an ELD component that is not connected to a power unit, information pertaining to a power unit is not required. Other data elements required to be recorded by the ELD that will not be available when entering duty status changes such as vehicle identification number (VIN), engine hours, and vehicle miles are only required when the commercial motor vehicle’s (CMV’s) engine is powered.  
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Note: This guidance document does not have the force and effect of law and is not meant to bind the public in any way.  It is intended only to provide information and clarity regarding existing requirements under the law or agency policies.