Buying a vehicle out of state from private owner

Proof of insurance is required for all transactions, or at least that's what the sign says when you walk in the Mandeville DMV office.

I bought a truck from MS. For what ever reason, transactions between some states (including MS) and LA don't require a notarized bill of sale, but I did have to present a copy of the previous owner's drivers license. I'm not sure if that was to confirm his signature on the title or as proof of residency in MS.

The DMV took the signed title and sent me a new one (with my name misspelled...) a couple of weeks later.