Trucking Terms Guide

ELD and HOS / Logs

Duty Status in trucking

Short answer: A driver log category such as driving, on duty, off duty, or sleeper berth.

Plain-English explanation

Duty status is the ELD log category a driver is recorded under at any given time. Federal HOS rules recognize four primary duty statuses: driving, on duty not driving, off duty, and sleeper berth. The ELD records transitions between statuses based on vehicle movement and driver input, and those records are the basis for HOS compliance review.

With logs and hours, timing matters. A phrase may sound simple, but the ELD record, duty status, supporting documents, and roadside inspection context can change how it should be handled.

Why it matters in trucking

Every minute on the 14-hour on-duty clock is counted against the driver's available window, and every driving minute reduces the 11-hour drive limit. Using the wrong duty status — like logging off duty during a break that doesn't qualify, or failing to switch to on-duty not driving when doing pre-trip paperwork — creates log inaccuracies that can result in violations at inspection.

A clean ELD log is easier to defend when the driver and office understand the vocabulary before an edit, annotation, or inspection request comes in.

Example in real use

A driver arrives at a shipper at 7:00 a.m. and waits 45 minutes for the dock to open. That 45 minutes is on-duty not driving — it counts against the 14-hour window even though the truck isn't moving. The driver cannot log off duty for those 45 minutes unless they are fully relieved of responsibility by the carrier.

Common mistakes or confusion

  • Logging off duty during shipper or receiver wait time when the driver is still responsible for the truck and freight — that time must be on duty not driving.
  • Assuming the ELD auto-assigns the correct duty status for every event — drivers are responsible for confirming and correcting status entries.
  • Conflating the 14-hour on-duty limit with 11-hour driving limit — a driver can exhaust the 14-hour window before using all 11 driving hours if the day included a lot of on-duty not driving time.

Related terms

Audit Trail A record of changes or events in a logging system that helps explain how driver log data changed. Supporting Documents Business documents used to support or verify a driver's records of duty status. Personal Conveyance Off-duty movement of a commercial motor vehicle for personal use when conditions are met. Yard Move A special driving status used for movement in a yard rather than over-the-road driving. On-Duty Not Driving Time when a driver is working but not driving, such as loading checks or inspections. Off Duty Driver time relieved from work responsibility and not performing carrier work.

Related guides

ELD and HOS Terms is the best next place to keep learning this topic.

Sources and last updated

HOS and ELD definitions reflect the current FMCSA Hours-of-Service Summary and ELD regulatory guidance, including the September 2020 final rule. See the sources page for full reference list.

Last updated: 2026-05-10