Boating Coach US
Aids to navigationQuestion 248 of 352

Why should you look at a chart when you see an aid to navigation?

  1. The chart tells you the owner of the aid
  2. The chart tells you the date it was built
  3. Its exact meaning may not be clear without the chart
  4. The chart replaces all lights and buoys
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Correct answer: Its exact meaning may not be clear without the chart

The chart shows how an aid fits with the channel limits and hazards around it.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 62: United States Aids to Navigation System, § 62.21 General

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Questions last reviewed: 18 October 2026