Which of the following is NOT part of the standard navigational information that may be passed to a disoriented mariner?

• A. Magnetic or true bearings between charted objects
• B. Charted buoy positions
• C. Charted depth of water
• D. Charted tide tables

Answer: (B)

In assisting a disoriented mariner, you provide navigational data that they can act on immediately using fixed chart references. Bearings to charted objects, the depth of water, and tide tables are all information that directly helps the mariner orient themselves and make safe decisions under current conditions.

Charted buoy positions aren’t part of that standard set because buoys can be moved, removed, or temporarily out of service. Relying on buoy status would require up-to-date reports and can introduce confusion if the buoy status doesn’t match the chart. The mariner can and should rely on the chart itself for buoy locations, and on the latest notices to mariners for any changes.