I am thinking of buying a car from a private party. Both of us have vanity plates that we want to keep for our own cars (mine are currently on a car I will sell or donate). How does the registration work in that case?

It's an easy process. AAA will walk you through it.

Good question, make sure you are a AAA member and they will help make the changes for you.

AAA is so GOOD at getting all vehicle things done, give them a try.

Not sure, but I know that if you take your plates & question inside the office and all should be fine