Boating Coach US
Federal law and registrationQuestion 16 of 352

Which event makes a certificate of number invalid?

  1. The owner transfers all of his or her ownership
  2. The owner changes the boat name
  3. The owner buys a new motor
  4. The owner moves slips
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Correct answer: The owner transfers all of his or her ownership

A certificate is invalid after the owner transfers all ownership of the vessel.

Source: US Code of Federal Regulations (eCFR), 33 CFR Part 173: Vessel Numbering and Casualty and Accident Reporting, § 173.77 Validity of certificate of number

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Questions last reviewed: 18 October 2026