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Hours of service and compliance basics

Understand HOS logs, duty statuses, and core ELD clocks

Overview

Hours of Service (HOS) logs track how time is spent on the road and off duty. These logs are required by the DOT and help ensure safe and legal driving. The Maven mobile app displays logs as a graph, showing how much time is spent in each duty status and how that affects available driving hours.

Duty status and graph colors

The HOS graph in the Maven app uses color-coded duty statuses:

  • Drive (green)

    • Logged automatically when the vehicle moves 5+ mph.

    • Counts toward the 11-hour driving limit per shift.

  • On duty (blue)

    • Logged when working but not driving (for example, pre-trip, fueling, loading, inspections).

    • Counts toward the 14-hour shift limit.

  • Off duty (orange)

    • Logged when not working (for example, breaks, off the clock).

    • Off-duty time must be continuous to reset certain clocks.

  • Sleeper berth (purple)

    • Logged when resting in the sleeper.

    • Used for full 10-hour breaks or split sleeper reset combinations.

Maven ELD clocks

The Maven app tracks four key HOS timers.

Drive clock

  • Tracks total driving time during a shift.

  • Maximum of 11 hours of driving before a 10-hour break is required.

  • Starts when the vehicle moves over 5 mph.

  • After 11 hours of drive time, a continuous 10-hour off-duty or sleeper berth break is required to reset.

Break clock

  • Tracks time until a mandatory 30-minute break is needed.

  • A 30-minute continuous break is required before driving 8 hours straight.

  • The break clock counts down from 8 hours of drive time.

  • Breaks cannot be split; they must be taken all at once.

Shift clock

  • Tracks total time on shift.

  • Includes:

    • Driving time

    • On-duty time

    • Off-duty and sleeper berth time when each segment is less than 2 hours

  • When the shift clock reaches 0:00, a 10-hour continuous break is required to reset.

Cycle clock

  • Tracks total working hours over 8 days.

  • Most drivers have a 70-hour limit (some Texas operations may use 80 hours).

  • Includes drive time + on-duty time.

  • Resets only after a continuous 34-hour off-duty or sleeper berth break.

  • A 10-hour break does not reset the cycle clock.