GMDSS is required for which of the following?
Official USCG Answer & Rule Citation
Correct Answer: Option C — SOLAS Convention ships of 300 gross tonnage or more.
The GMDSS carriage requirements are defined under the International Convention for the Safety of Life at Sea (SOLAS), Chapter IV. These regulations apply mandatorily to all cargo ships of 300 gross tonnage and upwards and all passenger ships on international voyages, ensuring standardized safety communication capabilities globally.
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