The registration of yachts for the purchase of yachts requires the registration of ships, and the procedures for registering ships for accommodation must be handled by the departments of maritime affairs, classification societies, and transportation. The purchaser must first register with the department of maritime affairs and apply for the name of the vessel that meets the requirements and order it from the shipyard. The name of the ship is like a car number and it is unique. After the ship is shipped from the factory, the maritime department issues the ship’s purchase contract and other documents before issuing the ship’s ownership certificate. After the classification society has inspected the ship holding the ownership certificate and issued the inspection certificate and nationality certificate, the ship can legally go to sea.