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Lesson 2 — Your Driver's Clock

The clock you don't check is the clock the driver inherits.

Why this matters

Lesson 1 was the 5 rules. This lesson is the 4 numbers — the four clocks that tell you whether THIS driver can take THIS load right now.

The thesis applied to clocks: the clock you do not check is the clock the driver inherits. Every minute a driver is on duty, the clock changes. If you assign without looking, you are betting the driver's day, their CDL, and the carrier's CSA score on the hope that the math works out.

Under 49 CFR § 390.6, asking a driver to take a load that does not fit their clocks is federal coercion. The clocks are the data that lets you avoid this. They are visible to you in real time in any modern ELD portal — Motive, Samsara, KeepTruckin/Motive, Omnitracs, Geotab, Trimble. Two minutes per check.

Source: 49 CFR § 395 (HOS). 49 CFR § 390.6 (coercion). Fleet ELD portal access is the dispatcher's daily tool.

The four clocks you check

For every driver, every time, before every assignment:

1. Driving hours remaining today. Out of 11 max. Example: "Driver has 4 driving hours left."

Connect: this is the simplest number. If the load needs more driving hours than the driver has, you do not assign it to this driver.

2. Duty hours remaining today (the 14-hour window). Out of 14 max. Example: "Driver has 6 duty hours left in the window."

Connect: duty hours are eaten by everything — fueling, dock waits, detention, traffic. If the load needs 4 driving hours but the route will include 3 hours of foreseeable delay, the driver needs 7 duty hours, not 4.

3. Weekly hours remaining (60/70 cycle). Out of 60 (in 7 days) or 70 (in 8 days). Example: "Driver has 22 hours left this week."

Connect: this is the clock dispatchers miss most. A driver who looks fine for today may have only 4 hours of weekly time left. The weekly clock kills loads that day-checks said were fine.

4. 30-minute break status. Has the driver taken their required 30-minute break yet today? When does the next one come due?

Connect: if the driver is at hour 7 of driving and your load needs 4 more, the break has to happen during this trip. That is a duty-hour math fact you need to account for. Where, when, and how the driver takes the break is the driver's call — they know their truck, the route, and where they can safely stop. Dispatch's job is the math, not the parking spot.

Image 1 — Inside the ELD portal

[Infographic placeholder — 4 HOS clocks diagram]

The math: does the load fit?

Example load: 350 miles, expected drive time 7 hours, 1 hour of foreseeable rush-hour delay, 2-hour customer detention typical.

Real duty time needed: 7 + 1 + 2 = 10 duty hours. Driving hours needed: 7. The 30-minute break also has to fit — the driver will place it where it works.

If the driver's clocks show:

  • 10 driving hours left, 12 duty hours left, 30+ weekly hours left, break not yet taken — load fits. Assign.
  • 7 driving hours left, 10 duty hours left, 30+ weekly hours left, break not yet taken — load barely fits, no margin. Risky. Better to use a different driver if you have one.
  • 6 driving hours left — load does NOT fit. Driver cannot complete in one duty period. Do not assign.

What happens when you skip the check

You assign a load to a driver whose weekly clock you did not check. The driver picks up, hits the road, and 4 hours in, their weekly clock runs out. The truck stops. The driver parks. The load sits.

Customer is angry. Recovery driver has to be sent. Carrier ate the cost. Driver ate the day. You missed the check that takes 2 minutes.

What you do as a dispatcher

  1. Open the ELD portal before EVERY assignment. Not the dispatch board. The ELD portal that shows live HOS data.
  2. Read all 4 numbers. Not just driving hours. All four.
  3. Add the foreseeable delays (rush hour, detention, mountain passes) to the load's duty-hour requirement before you compare.
  4. If the load does not fit, do not assign it to this driver. Find another driver with the right clock, or reschedule.

The thesis, restated

The clock you do not check is the clock the driver inherits. The driver inherits your math errors as their day, their MVR, and their CDL exposure. The carrier inherits them as CSA score. Check the four clocks. Every driver. Every load. Every time.

Next step

Take the short quiz below. 5 questions in English. You need 4 of 5 correct to pass.

Image 2 — Why the weekly clock matters

The weekly clock kills loads the day-check said were fine
PLACEHOLDER — final video pending topic-matched curation

📋 Sample Quiz Questions (Preview)

These are the questions on the quiz at the end of this lesson. The actual quiz is taken after logging in. Correct answer marked with ✓.

Question 1: Q1: The four clocks
Before assigning a load to a driver, how many HOS clocks does the dispatcher need to check?
  • ○ One — just the driving hours remaining
  • ○ Two — driving hours and duty hours
  • ✓ Four — driving hours remaining, duty hours remaining (14-hour window), weekly hours remaining, and 30-minute break status
  • ○ None — the driver knows their own clock
Why: Four clocks. Missing any one of them can break the load: a driver with hours left today may be out of weekly hours; a driver with driving hours may be out of duty hours; a driver with both may be due for a 30-minute break that has to happen mid-route. Check all four, every time.
Question 2: Q2: The clock that dispatchers miss
Which clock do dispatchers miss MOST often, leading to drivers running out mid-route?
  • ○ Driving hours remaining today
  • ○ Duty hours remaining today
  • ✓ Weekly hours remaining (60/70 cycle) — a driver who looks fine today may have only 4 hours left this week
  • ○ The 30-minute break clock
Why: The weekly clock kills loads that day-checks said were fine. A driver might have 8 hours of driving available today but only 4 hours left in their 70-hour week — which means today's load can use only 4 of those 8 driving hours before the weekly clock cuts them off.
Question 3: Q3: Where to find the clocks
Where does a dispatcher find a driver's live HOS clocks before assigning?
  • ○ Call the driver and ask them
  • ○ Check the dispatch board
  • ✓ The ELD back-office portal (Motive, Samsara, Omnitracs, Geotab, Trimble) — live data, updated every minute
  • ○ Ask the safety department
Why: Every modern ELD has a back-office portal showing live HOS data for every driver. Dispatch access is standard. The clocks update every minute. Two minutes to check; protects the driver, the carrier, and the dispatcher under 49 CFR § 390.6.
Question 4: Q4: Foreseeable delays and the duty clock
A 350-mile load has 7 hours of expected drive time. The route crosses Atlanta at 4:30 PM (1 hour foreseeable rush-hour delay) and the receiver is a known-detention facility (2 hours typical dock time). How many DUTY hours does this load really need?
  • ○ 7 hours — only driving time counts
  • ○ 8 hours — add 1 for the break
  • ✓ 10 hours — drive 7 + rush 1 + detention 2 — all eat the 14-hour duty clock
  • ○ It depends on the driver
Why: Every minute the driver is on duty — driving, waiting at the dock, sitting in rush hour, fueling — eats the 14-hour duty clock. The honest duty estimate is drive time + every foreseeable delay added in. If you compare just drive time to driving hours remaining, you have not done the math.
Question 5: Q5: The right call when the load does not fit
You check a driver's clocks. The load needs 10 duty hours. The driver has 8 duty hours left. What is the right move?
  • ○ Dispatch and hope the customer is flexible
  • ○ Tell the driver to extend the day "just this once"
  • ✓ Do not assign to this driver — find a driver with the right clock, reschedule the appointment, or decline the load
  • ○ Have the driver take a 30-minute break to reset the clock
Why: Push back, not push down. If the load does not fit, do not assign it to this driver. Find another driver, reschedule, or decline. The 30-minute break does NOT reset the 14-hour duty clock — once the 14 starts, it runs until 10 hours off duty. Pushing a driver to "extend the day" is coercion under 49 CFR § 390.6.

End of preview. The actual quiz requires login to record a grade.

Last modified: Tuesday, 19 May 2026, 8:30 PM