An electronic logging device (ELD) is a system that includes a hardware device connected to a vehicle’s engine electronic control module to automatically track a driver’s driving time and to keep the record of duty status (RODS). An electronic on-board recorder (EOBR) is a device attached to a commercial motor vehicle that records the amount of time a vehicle is being driven.
In FMCSRs, an electronic on-board recorder often refers to a device that stores electronic logging entries. However, this term is nonexistent now. The FMCSA used it in a 2010 final rule that it later rescinded. EOBR was seen again in a 2011 proposal that didn’t become a permanent regulation.