Which of the following is a function of the Global Maritime Distress and Safety System (GMDSS)?

The Global Maritime Distress and Safety System (GMDSS) is primarily designed to enhance communication during emergencies at sea. Its key function is to ensure that ships in distress can rapidly communicate their situation to nearby vessels and shore stations, thereby facilitating prompt search and rescue operations. The system employs various technologies, including satellites, radiotelephone, and digital selective calling, to keep maritime communication robust and reliable, especially when lives are at stake.

In contrast, providing ship registration services, navigation assistance, and managing cargo health status do not fall within the scope of GMDSS functions. Ship registration is typically handled by national maritime authorities, navigation assistance generally involves navigational aids like charts and buoys, and cargo health status management relates to the monitoring of cargo conditions but is not linked with distress communications. Thus, the role of GMDSS is distinctly focused on ensuring safety through effective emergency communication.