As for tractor papers, yes, usually all that is required is tractor registration, fuel card and insurance card. The last few times I got stopped for overweight, that is all the tractor stuff I had to bring in, excluding, of course, your driver's license, medical card and log book if on paper (if you get a hard-nosed scale guy, they may ask to see your electronic log. You know how to bring that up?).
Years ago, tho, I was asked to bring in ALL paperwork, that is, all trailer and dolly registration and proof of inspection. Maybe not so much any more. Couldn't understand why UPS was starting to plaster this to the wall of the kingpin.
As for your seal control...this is your "Bill of Lading"...the description of what you have in the trailer, where it came from, where it's going. You don't have that for a local pickup? Does the scale care? Maybe, maybe not. Wouldn't it be better to have one for each trailer? Just in case? We ran into that here, notice HERE. What I started doing, even tho the company or pickup didn't require it, is to have a tablet of seal papers, some tin or plastic seals, fill em out, stick seals on trailer(s). Mission accomplished. Oh, it takes more time? Well, La, De, Dah! All legal, right?
MTs? Here, notice again I said HERE, the company fed us the BS that it was FSTB policy that ALL trailers must be sealed in some way, whether by S/C or padlock. Whether it's Fed policy or not, I don't care. You want me to do this, I will. You DON'T want me to seal trailer, then we have a prob. Geez, am I gonna get fired for doing TOO MUCH of my job?
In sleeper, we hauled MT back from Louky sometimes. Locally, they told us they wanted these MTs locked up somehow. We started putting the plastic seals on the MTs before we left. Huh! Not gonna work. The high-paid rent-a-cops on the out bound wanted to see paperwork that matched plastic seal. We told em it was just a deterant as per our local gendarmes. Didn't matter. Again, we merely filled out our own paperwork, seal, BINGO! Problem solved!
"Expect the Unexpected", right? I heard that somewhere, a MAD magazine, maybe?
And, uh, ask MANAGEMENT what THEY require, then go to drivers and ask. See if the answers match.