Quote Originally Posted by zx150 View Post
The state of Ky does not require it but if you pull to a state that does you need one. I think it is ALabama that does not require drivers to have insurance but if you come to KY and don't have it you get a ticket.

I have a license plate for my trailer for this very reason.
You are mixing apples and oranges. Almost every state, but not all, require you to have auto liability insurance. All states have financial responsibility laws. This means that even in a state that does not require liability insurance, you need to have sufficient assets to pay claims if you cause an accident. That has nothing to do with pulling a boat trailer with or without a license plate.