Which aspect is NOT a function of the GMDSS?

The Global Maritime Distress and Safety System (GMDSS) is designed primarily to enhance maritime safety and improve communications in emergency situations. Its core functions include distress alerting, which allows vessels to communicate urgent distress signals to nearby ships and rescue authorities, and emergency communication, enabling vessels to relay critical information during emergencies. Additionally, the GMDSS is responsible for broadcasting maritime safety information to ensure that ships are informed about navigational hazards, weather conditions, and other vital updates.

Ship tracking, while important for overall maritime operations and safety, falls outside the primary scope of the GMDSS. It typically involves systems that monitor and report a vessel's position and movement, which is generally managed through other technologies, such as AIS (Automatic Identification System) or radar systems. While these systems may play a complementary role in maritime safety, they do not constitute a function of the GMDSS itself. Hence, identifying ship tracking as not a function of the GMDSS aligns with its established purpose and operational framework.