Definition
A worldwide voluntary ship reporting system, operated by the U.S. Coast Guard, in which participating merchant vessels send regular position reports while at sea. The system maintains a continuously updated plot of vessel locations so that, in the event of a maritime or aviation emergency, the nearest suitable ships can be identified quickly and asked to assist with search and rescue.
Plain English
A global tracking system run by the U.S. Coast Guard that knows roughly where commercial ships are at any given time, so if someone goes down at sea, the closest ship can be sent to help.
Context Anchor
Seen in FAA acronym lists and in discussions of flights over water, ocean emergencies, and rescue support after a forced landing on water.
Derivation
The name is built from the rescue purpose: 'Automated' (the position-reporting and plotting is computerized), 'Mutual Assistance' (ships voluntarily help each other and others in distress), and 'Vessel Rescue.' Knowing the expansion makes the acronym easy to remember and explains why the system is ship-based rather than aircraft-based.
Why Pilots Care
Pilots crossing oceans benefit from knowing rescue coordinators can locate nearby ships if a ditching or distress situation occurs.
Intuition Check
Do not read AMVER as an aircraft system installed in the cockpit. It is a ship-reporting and rescue-support system used to help find vessels that may be able to assist at sea.
Example Sentence 1
Before her transatlantic ferry flight, the pilot reviewed the oceanic SAR procedures and noted that AMVER-participating ships would be the most likely responders if she had to ditch.
Example Sentence 2
After the ditching, controllers used AMVER data to vector the nearest ship toward the survivors.