Maritime administrative department. Seafarers' basic safety training refers to the personal survival skills, fire fighting, basic first aid, personal safety and social responsibility that seafarers receive before taking up their posts on board. After the expiration of the basic safety certificate for seafarers, they can only apply for training in the local maritime administrative department for review, so they need to be replaced in the local maritime administrative department. Dalian, also known as the romantic city, is a prefecture-level city, a sub-provincial city, a city with separate plans and a megacity under the jurisdiction of Liaoning Province.