Better have your Haz Mat Endorsement, and proper placards pulling that on a public road, and can you make that cll on speakerphone so I can listen, when you ask your Insurance Agent if that is covered under your policy
That thing would be a PITA to back up , I have only handled one full pull trailer in my 35 year trucking career, despised that thing. I imagine that with some practice, I could get the hang of it, but I am Good with it, if I never handle another one EVER again
Doug
Just for the record...
So long as the tanks are empty, no haz-mat endorsement nor proper placards are required. Haz-mat only applies to hazardous materials, not empty tanks. I suppose it might become a problem if a tank is all labeled up as containing a hazardous material. Mr. DOT might become a bit pissy if he pulls you over for towing tanks with a haz-mat placard bracket and you tell him you don't need it 'cause it's an empty.
On the other hand, transporting those tanks would not require the endorsement if the tanks were repainted to obscure the label and were provably containing a non-hazardous material like air. I'd pull all the plugs and ports before transporting it.