Why must buoy information be regularly updated?

Buoy information must be regularly updated primarily to reflect changes in navigation conditions and hazards. Navigation is dynamic, and factors such as shifting sandbanks, increased sedimentation, or changes in water depth can alter the safety of a route. If buoy information is not current, mariners may encounter unexpected hazards, compromising safety and navigation efficiency.

While compliance with international regulations (the last option) is essential, the core reason for updating buoy information rests on enhancing navigational safety by ensuring that all navigational aids accurately provide current information. This proactive approach minimizes risks for vessels navigating through potentially hazardous areas.