Glossary
ELD Duty Status
The four ELD duty statuses, how they affect HOS limits, and why classification errors can create inspection problems.
By Dale Connors, Founding Editor · Content reviewed quarterly against FMCSA guidance and official state resources. Definition
Duty status is the recorded classification of a commercial driver's current work or rest state at any given moment. The four standard duty status categories under FMCSA rules are: driving, on duty (not driving), sleeper berth, and off duty. Each category is tracked by the ELD and has specific implications for HOS compliance.
The status a driver records — and when they change it — directly affects how the HOS clocks run. Driving time and on-duty-not-driving time both count toward the 14-hour window. Off-duty and qualifying sleeper berth time do not. Incorrect status entry can create false HOS availability, a compliance violation, or both.
Where the dispatch math usually breaks down
Duty status becomes a dispatch planning issue when activities like fueling, loading, scale stops, and customer waiting are not accounted for correctly. A dispatcher who plans a trip using only driving time as the on-duty consumption ignores the on-duty non-driving time that those activities create — and the driver arrives at the end of the day with less usable window than the plan assumed.
A common example: a driver goes on duty at 6 AM, spends 1.5 hours at the shipper (on duty), then drives 9 hours, fuels (on duty), and approaches a receiver. The 14-hour window opened at 6 AM and has been running throughout. If the plan counted only driving time, it may show the driver with hours to spare when the window is actually nearly closed.
At the planning stage — not just for compliance filing
Accurate duty status accounting — at the dispatch planning stage, not just for compliance filing — is what allows realistic trip plans. A plan built on driving hours alone will regularly underestimate total on-duty time consumption, producing plans that work on paper but fail in practice when non-driving activities consume the margin.
For inspectors, duty status records are the primary record of a driver's hours. Incorrect or inconsistent status entries are among the most common HOS violations found during roadside inspections.
What to check before relying on this
Use current FMCSA guidance, ELD instructions, and carrier policy for duty status classification decisions. Confirm that the ELD is recording status changes correctly for each activity type, especially for activities that can be either on-duty or off-duty depending on the circumstances.
Related terms
- hos
- on duty time
- off duty time
- ELD
What are the four duty status categories for truck drivers?
The four standard duty status categories under FMCSA HOS rules are: (1) Driving — time operating the commercial vehicle; (2) On Duty Not Driving — time working but not driving, including loading, fueling, inspections, and waiting at a shipper; (3) Sleeper Berth — time resting in a qualifying sleeper berth; and (4) Off Duty — time when the driver is fully relieved from work responsibilities. The ELD records each status and uses it to calculate HOS availability.
Does fueling count as on-duty time for truck drivers?
Generally yes. Time spent fueling a commercial vehicle — operating the pump, adding DEF, completing paperwork at the fuel desk — is typically recorded as on-duty not driving. This time counts toward the 14-hour duty window. It does not count toward the 11-hour driving limit. Drivers and dispatchers who treat fuel stops as zero-time events in a trip plan will regularly underestimate total on-duty time.