Hauling my own inventory?

I cannot profess the last word on this but I do issue a caution here.

I think the main question should be what your vehicle & trailer are registered to carry for weight. This is what determines what license you need. Not the actual weight of the products.
bc

 

Exactly, if the vehicle combination is REGISTERED at 26,001 lbs or MORE (TOTAL Weight: vehicle combination plus freight) you need a CDL A (with/without Air Brakes) Anything less is a CDL B (with/without Air)
Additionally, you would still need your "Single State" and need permits for every state you MIGHT run in. This usually can be done all at once at your local State Offices. Short of that, you can purchase a "Temporary" permit at any State Port of Entry (Scale House) but that is time consuming and gets a little pricey. I suppose it would depend on how many times you "ship". If you only ship a few times a year, this may be the way to go. But if you ship a couple times per month, you would have to compare the price of getting the "TEMPS" vs. Full Registration.
Insurance IS required, I am not sure what the minimum is.

 

You should keep in mind that as stated you will need a DOT, MC number. You will also need to carry the required insurance in order to obtain the number. This insurance is not cheap.

Also, if you buy 3 trailers and want to haul 2 on the one bought, I am assuming you plan to use transporter plates. I advise extreme caution here. I was licensed for this last year and when I got my transporter plates, they asked if I planned to do something like this. They advised me that the transporter plate does NOT allow for transportation of freight on the bottom trailer. It must have a valid license weighted for the weight it is carrying.

 

When i called DOT the other day they told me anything over 10,001 you have to have a CDL, DOT number and a motor carrier number