Legal analysis: 1, identity document: seaman's card, issued by the Maritime Safety Administration; Passports for going abroad on private business shall be issued by the Ministry of Foreign Affairs. 2. Competency certificate, similar to vocational qualification certificate. 3. Professional training certificates: basic safety and social responsibility training certificate, lifeboat and rescue boat training certificate, skilled first aid training certificate, skilled boat and raft training certificate, advanced fire fighting training certificate, advanced medical training certificate, radar simulator training certificate, radar standard drawing and ARPA training certificate, ship security officer training certificate, etc. 4, special training certificate. 5. Health certificate and immunization certificate (commonly known as yellow book) 6. Service Qualification Certificate: Crew Service Book.

Legal basis: Article 7 of the Maritime Traffic Safety Law of People's Republic of China (PRC), captains, chief engineers, drivers, engineers, radio operators and corresponding personnel of seaplanes and submersibles must hold qualified job certificates. Other crew members must receive corresponding professional and technical training.