Date, Time, Location information, Engine hours, Vehicle miles, Driver ID, Authenticated user, Vehicle, Motor carrier
Per the ELD rule technical specifications, an ELD must support one of two options for electronic data transfer:
The first option is a "telematics" transfer type ELD. At a minimum, it must electronically transfer data to an authorized safety official on demand via wireless Web services and email.
The second option is a "local" transfer type ELD. At a minimum, it must electronically transfer data to an authorized safety official on demand via USB2.0 and Bluetooth®.
FYI: To ensure that law enforcement is always able to receive the hours of service (HOS) data during a roadside inspection, a driver must be able to provide either the display or a printout when an authorized safety official requests a physical display of the information.
Many drivers find ELD use helps them gain more time on the road, as e-logs can record duty status changes down to the nearest minute. Conversely, paper logbooks require drivers to round up to the nearest 15 minutes, resulting in fewer miles posted.
An ELD is a replacement for a paper logbook. It does not automatically transmit data to inspectors or law enforcement agencies, and it does not automatically trigger violations.