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What does "MMSI" stand for?

Maritime Mobile Service Identity

MMSI stands for Maritime Mobile Service Identity. This term is used in maritime communications to uniquely identify individual ships and vessels that are equipped with certain radio communication systems, such as those utilizing the Automatic Identification System (AIS). The MMSI is crucial for enhancing maritime safety, as it allows vessels to communicate their identity and position to others, improving situational awareness and facilitating effective maritime traffic management.

The other options, while they might suggest important aspects of marine operations, do not accurately represent the widely acknowledged definition and function of an MMSI. The use of "Mobile Service" emphasizes the focus on radio communication applications, which is integral to monitoring and managing maritime traffic. Understanding this term is essential for anyone involved in maritime navigation, safety, and regulation.

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Marine Management System Indicator

Maritime Movement Signal Identifier

Marine Mobile Security Information

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