The Reweigh Only Costs Less at the Same Scale
Same location, inside 24 hours: that is the reweigh rule. Which platform each axle goes on, and what the guarantee covers.
The cheap reweigh has two conditions, and most drivers only remember one of them.
You have to come back to the same scale, and you have to do it inside 24 hours of the original weigh. Drive to the next exit and you are paying full price again.
Getting on it right the first time
With a standard trailer it is three platforms and one rule: steer axle on platform 1, drive axle on platform 2, trailer axle on platform 3.
Get that wrong and the ticket is wrong, and a wrong ticket is not fixable. The company is blunt about it: tickets cannot be altered or edited in any way after they are printed, because they are legal documents.
The spread axle exception
A spread-axle trailer does not fit on three platforms, so it weighs in two positions.
First position: steer on platform 1, drive on platform 2. Then the weighmaster tells you to pull forward. Second position: the front trailer axle on platform 2 and the rear trailer axle on platform 3.
If you have a configuration that does not fit either pattern, there is a 24-hour help desk at 1-877-CAT-SCALE, extension 6. Calling before you weigh is free. Guessing is not.
What the reweigh actually costs
On the California Guaranteed ticket, a first weigh runs $15.25 and a reweigh $5.25.
Here is the part almost nobody knows. After a full-price weigh and two reweighs — $25.75 all in — the on-duty manager may elect to void all further reweighs until you are legal. The reweigh that finally shows you legal is the last one you pay for.
Which means the shifting is not the expensive part. Refusing to shift is.
Axle weights, not just gross
The guarantee covers the axle weights, not only the gross. That matters more than it sounds, because gross legal with a drive group over is still a violation, and the ticket that says you are fine on gross will not save you.
Every scale is certified in the state where it sits.
That distinction is the reason a scale ticket is worth carrying. A number that only covers the gross tells you whether the whole rig is legal; a number that covers each group tells you where the weight is, which is the only thing you can actually do something about. Sliding a tandem does not change your gross by a pound. It changes which axles are carrying it, and that is the number the officer is looking at.
The guarantee, in plain terms
If you get an overweight fine from the state after the scale showed you legal, they check the scale.
If the scale was wrong, they reimburse the fine. If the scale was right, a company representative appears in court with the driver as a witness.
That second half is the part worth keeping. It means your printed ticket is not just a number you bought — it comes with somebody willing to stand behind it in front of a judge.
How to use a weigh so it pays for itself
- Weigh loaded, before you leave the shipper's area. Finding out you are heavy 300 miles later means you shift on the shoulder or you pay the fine.
- Keep the ticket. It is dated, it is certified, and it is the only document that says what you actually weighed.
- Note your empty weight once and write it down. Tractor and trailer empty is the number that lets you do the math on the next load without a scale.
- Shift, do not argue. Sliding the tandems is the cheapest tool you own. A few hundred pounds moves between the drives and the trailer with each hole.
- Come back to the same scale. Same location, inside 24 hours. That is the whole reweigh rule.
When the scale is telling you about the truck
If your axle weights come back different from one weigh to the next with the same load, that is not the scale being moody. Air suspension that is not leveling, a bad height control valve, or a leaking air bag will move weight between groups and you will chase it on paper forever.
Same story if one side reads heavier than it should on a load you know is centered.
A scale ticket is a cheap diagnostic that most drivers throw away. We look at suspension, air systems and alignment in Houston, Dallas and Monterrey: thetrucksavers.com.
Original source: CAT Scale reweigh policy and guarantee