According to the navigation regulations of the Yangtze River, all ships sailing on the Yangtze River trunk line must hold the Yangtze River ship certificate, otherwise it will be regarded as illegal.

The Yangtze River Ship Certificate is a certificate issued by the Yangtze River Waterway Administration, which is used to prove the legality and safety of ships sailing in the Yangtze River trunk line. After holding the Yangtze River Ship Certificate, a ship can sail in specific waters of the Yangtze River trunk line and abide by the Yangtze River Navigation Rules and relevant laws and regulations.

It should be noted that different types of ships may need different types of Yangtze River ship certificates, such as cargo ships, passenger ships and engineering ships.