Apu exemption for gross weight?

As others have said, just run it. 300± isn't a show stopper, that's for sure.

 

It's still a violation and will trigger a strict liability verdict if you have an accident and have to go to court. The cops may not pay attention to the federal regulation but opposing counsel most certainly will.

 

Full tanks? How far do you have to go? Burn 40 gallons and you'll be under 80K. You may need to slide your fifth wheel though.

 

APU Weight Exemption Guide by State | Track Your Truck.

 

Depends on tire ratings, axle ratings, and also state ratings. In OR our car haulers are legal to 14600 on the steers, but in WA we are only allowed 13900.

 

On STAA highways, it's 20,000. On secondary roads, those weights by width come into play.

 

That's off STAA highways. On STAA, the federal bridge law applies, and that's 20,000. That's all interstates and US highways that don't have weight restrictions grandfathered in as well as most state highways.

 

I know Maryland's limit is 20,000, I am not sure about other states.

 

Let's correct some things, first 20k is the maximum ALLOWABLE weight that a truck can have on their front axle.

This means you can have up to 20k on that front axle but ...

All States, ALL STATES use the lowest weight rating on a truck for compliance.

So if you have an 18k capacity on the axle, but your tires are rated at 6250, your maximum allowable weight on that front axle is 12,500 lbs.

On the other hand, if you have a 12,500 lb rated axle but have say 12,500 lb rated tires on each side (example is load rating L XZL 445/65R22.5), you are limited legally to 12,500 lbs on that axle even though your tires are allowed to carry 25,000 lbs.

If you are pulled over for an inspection and they look at your axle but can not find a data plate, then they will use a 12,500 lb rating as your rating.

 

Goodluck with that. Have to have axles and tires rated for it first.