The people at the DMV really don't have a clue here regardless of their own guidelines. But, if you buy YOM plate(s) for a truck or a car and it is clear you can register it, generally speaking.
I have seen 56 car plates registered to a 56 truck and vise versa. In most cases they won't know the difference. They can and will charge you weight fees for a commercial vehicle no matter what plate you find.
Fred
