farmer82 - 12/28/2013 17:45 My spray guy got pulled over this spring on the way to my place. The DOT guy let him drive it to my place and then gave him the citations. I asked the DOT guy about building a bale trailer and licensing it. He said if it is a specific purpose ag trailer I would not need to license it as an implement of husbandry. He also said if I were use adapt something it would still have to be licence or at least subject to the weight issues. I took that to mean I could not use a flatbed trailer hauling bales or in your case grain and be over weight on axles. I am sure if I talked to a different guy the story would change or at least evolve to whatever generates the most in citation revenue. You might be aware there could be issues. FWIW
Don't think it'd be a huge issue on a trailer but that is the way they are about trucks with dump bodies around here. It can be used for something not related to husbandry. For trailers we just licence them, there is absolutely no reason I want to risk the hassle of being pulled over due to a one time fee of $160 for a heavy farm trailer.
You could use flat racks to haul bales and be fine as they can't be used for anything else really.
RodInNS - 12/28/2013 17:48 From what I remember, he has air on the tractor so he has full braking on the trailers. IIRC, he was swinging the full train with the Fendt... Think he was using the tractor's hydraulics too. Rod
I know he has air but I think he said he pulled them without brakes with no issues in the last thread about these. | 
highway dump trailer convert to use farm tractor to pull grain
