Methods of Recordkeeping

Integral synchronization

(interface with the vehicle engine)

N/A

N/A

Required

Yes; automatically captures whether engine is on, whether the vehicle is in motion, miles driven, engine hours

Location Information

Yes

Manual entry (or GPS, if available) required at each change of duty status

Required at each change of duty status – manual or automatic

Automatic for each change of duty status; at 60-minute intervals while vehicle is moving; at engine-on and engine-off; and at beginning and end of personal use and yard moves

Graph Grid Display

(graphical display of duty status)

Yes

Yes

Not required

Presents a graph grid of driver daily duty status changes on a display or a printout

RODS Printout at Roadside

N/A

Required, per inspector’s request.

Optional choice of chart, electronic display, or printout.

Choice of printout or display.

HOS Driver Advisory Messages

N/A

N/A

N/A

Warning of unassigned time/miles upon login.

Default Duty Status

N/A

N/A

N/A

Default status is “on-duty not driving” when vehicle has not been in motion for 5 consecutive minutes & driver has not responded to ELD prompt within 1 minute.

Clock Time Drift

N/A

N/A

N/A

UTC (coordinated universal time) synchronization – deviation cannot exceed 10 minutes at any time

Resistance to Tampering

N/A

N/A

Tamperproof to the maximum extent practical

Prohibits alteration or erasure of original data collected by ELD, or alteration of the source data streams used to provide that information

Identification of Sensor Failures and Edited Data

N/A

N/A

Identifies sensor failures and edited data reproduced in printed form.

Monitors, records, and displays edits with annotations, as well as detectable ELD malfunctions and data inconsistencies.