Boating Coach
Licensing and registrationQuestion 45 of 566

How high must the characters of a licence number be?

  1. At least 7.5 cm (3 in)
  2. At least 2.5 cm (1 in)
  3. At least 6 mm (1/4 in)
  4. At least 15 cm (6 in)
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Correct answer: At least 7.5 cm (3 in)

The characters are block letters, at least 7.5 cm high.

Source: Safe Boating Guide (TP 511E, 2026), What does a licence number looks like?, page 10

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Questions last reviewed: 18 October 2026