The auto-shipping business is a necessary part of relocating to or from Hawaii, since no roads go there. The state also has some stringent rules about vehicles leaving the island.
If you are shipping your vehicle from Hawaii, the owner must present present proof of ownership and current registration. If owner cannot be present, he or she must provide a notarized letter of authorization for the vehicle to be shipped.
In addition, vehicles leaving Hawaii must be cleaned to avoid ethe spread of agricultural pests. If you do not do so thoroughly before departure, the vehicle will have to be steam-cleaned on the mainland at the owner's expense.