GMDSS Element 7 (Radio Operating Practices) USCG Q#130 (Set 5)

What does the MID (Maritime Identification Digits) signify?

Official USCG Answer & Rule Citation

Correct Answer: Option B — Nationality

Maritime Identification Digits signify the vessel's nationality or flag administration, allowing GMDSS radio systems and coast stations to immediately identify the country responsible for the radio station license.

All GMDSS Element 7 (Radio Operating Practices) Sets Practice Set 5