Safety, Fire & Survival · GMDSS — Priority of Communications
In radio communications, the correct order of priority from highest to lowest is:
- ADistress, Urgency, Safety, then routine✓ Correct
- BSafety, Routine, Distress, Urgency
- CRoutine first, Distress last
- DUrgency, Routine, Distress, Safety
Explanation
Distress (MAYDAY — grave and imminent danger) has the highest priority, followed by Urgency (PAN-PAN — safety of a vessel or person, not immediate), then Safety (SECURITE — navigational or weather warnings), and finally routine traffic. Higher-priority calls take precedence on the radio.
Authority: ITU Radio Regulations; GMDSS
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