On a passenger ship equipped with a GMDSS installation, how many operators on board must hold a GMDSS Radio Operator License or Restricted GMDSS Radio Operator License, depending on the ship's operating area?

• A. Three
• B. Two
• C. One
• D. Four

Answer: (B)

Two licensed operators are required on a passenger ship with GMDSS to ensure continuous, capable handling of distress and safety communications. SOLAS rules require that there be on board at least two people who are trained and licensed to operate GMDSS equipment, so that there is always a qualified operator available and a backup in case one is unavailable. The licenses can be either the full GMDSS Radio Operator License or the Restricted GMDSS Radio Operator License, depending on the operating area, but the minimum staffing remains two licensed individuals. This redundancy and proper qualification help ensure critical communications are maintained at all times.