Deck Navigation (Supplementary) USCG Question #867 (Set 2)

With respect to automatic identification systems (AIS), which information is required to be broadcast every 1 to 10 seconds?

Official USCG Answer & Rule Citation

Correct Answer: Option D — Course over ground and MMSI

Course over ground and the Maritime Mobile Service Identity (MMSI) number are dynamic and high-priority identification parameters respectively. MMSI is broadcast continuously, while COG updates dynamically within the mandatory 1 to 10 second interval for active collision avoidance tracking.

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