The Scale Ticket the Shipper Calls 'Close Enough'
You are assigned a 3-axle straight truck: 12,000 lb front axle, 34,000 lb rear tandem (20,000 lb per axle), 50,000 lb GVWR. At the shipper, 12 pallets at 2,100 lb each are loaded nose-to-tail, and you pull onto a certified scale before leaving the property. The ticket reads: steer axle 10,400 lb, axle 2 19,600 lb, axle 3 15,600 lb, gross 45,600 lb. The gross is legal for Ohio. The yard supervisor says the load "scaled the same way last week" and tells you to run it, noting the next open scale is 70 miles away and the receiver charges $150 an hour for late arrivals. You have 90 minutes of slack in the appointment window and a pallet jack in the truck, but the load is banded to the deck and the side curtains are sealed. Fuel is at three-quarters of a tank. It is 6:40 a.m. and the dock closes at 3:00 p.m.
1. Using the ticket, decide whether the truck can legally leave the yard, and show the weight math.
Read the worked answer
No - it cannot leave as loaded.
- Gross: 45,600 vs 50,000 GVWR → 4,400 lb under. Legal.
- Steer: 10,400 vs 12,000 → 1,600 lb under. Legal.
- Tandem: 19,600 + 15,600 = 35,200 vs 34,000 → 1,200 lb over.
- Axle 2 alone: 19,600 vs 20,000 → only 400 lb of margin, so any fix must lower axle 2, not raise it.
A legal gross does not cure an overloaded axle; each limit stands on its own.
The fix is a placement problem, not a speed problem. Because total weight is fixed, every pound you take off the tandem shows up on the steer axle - but the transfer equals (weight moved × distance moved) ÷ wheelbase, so you must move more mass than the 1,200 lb overload. Moving one 2,100 lb pallet ~200 in forward on a ~250 in wheelbase shifts roughly 1,700 lb: tandem drops to ~33,500 (legal) but the steer rises to ~12,100 - now over the front rating. Moving that same pallet only ~150 in forward transfers ~1,260 lb: steer ~11,660, tandem ~33,940, both legal with margin. Either way, the only proof is a new scale ticket before you move.
2. The supervisor argues the gross is legal and the truck 'scaled the same way last week.' What is wrong with relying on that?
Read the worked answer
Three separate problems:
- The prior scale ticket is not this load. Fuel level, pallet positions, banding, whether the pallet jack was aboard, and the driver's own weight all change the numbers. Last week's ticket describes last week's truck.
- Distance does not fix weight. Seventy miles of driving does not settle 1,200 lb off a tandem. Static weight at the dock is static weight at the scale house, and enforcement can be anywhere - not just at the next open weigh station.
- The liability sits with the driver. The shipper loads it, but you hold the wheel. An overweight axle can put you out of service on the spot, and the citation goes on your record, not the supervisor's. The $150/hour late charge is a commercial cost; an out-of-service order plus a fine plus a rescheduled delivery is worse, and an overloaded steer axle on a rainy bridge is worse still.
The supervisor's argument is about schedule risk. Yours is about legal and physical risk. They are not the same currency.
3. If the load cannot be brought under both axle limits, what are your options, and what do you communicate to the receiver?
Read the worked answer
Work outward from least disruptive to most:
- Reposition first, then re-scale. Move one or two pallets forward to a distance that satisfies both axles at once, and get a printed ticket.
- Offload. Take pallets off and have the shipper re-manifest; a lighter legal load beats a heavy illegal one.
- Split the shipment into a second trip or a second truck, if the shipper will release it.
On the receiver: call before the appointment window closes, not after. State the specific reason - "the load is 1,200 lb over on the rear tandem and I am reworking it at the shipper" - and ask to move the appointment. Give the receiver the choice so they can plan their dock; an hours-late surprise is what triggers the charge.
Do not sign a bill of lading that misstates the weight to protect the schedule. If you sign it, you own it.