Boating Coach
Before you goQuestion 27 of 566

A manufacturer adds the letters CA before the hull serial number. What does the guide say about this?

  1. The country code is required
  2. It is optional and is not part of the HIN
  3. The country code replaces the first 2 digits
  4. The country code makes the HIN 14 digits
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Correct answer: It is optional and is not part of the HIN

The code is added in front and separated by a dash. It is not part of the number.

Source: Safe Boating Guide (TP 511E, 2026), Table 2: Valid HINs, page 8

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Questions last reviewed: 18 October 2026