The Standards for Minimum Safety Manning for Seafarers on a Ship Article 6

In accordance with their different responsibilities, seafarers of navigation ships are categorized into the Deck, Engineering, Telecommunications, and General Affairs Departments. Except for the Telecommunications Department, the apt number of officers and ratings shall be stipulated for each department, provided that the certified seafarer from the Deck Department can hold a concurrent post with the telecommunication personnel.In accordance with their different responsibilities, the seafarers on vessels of special purpose are categorized into the Deck and Engineering Departments, and an apt number of officers and ratings shall be assigned to each department.