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Marine order 502—Vessel identifiers—national law

Applying, displaying and communications about a unique vessel identifier.

Current Marine Order 502 (Vessel identifiers — national law) 2017

Marine order 502 includes:

  • application requirements for a unique identifier
  • criteria which must be met for AMSA to issue a unique identifier
  • display requirements for your unique identifier
  • situations where the removal or alteration of a unique identifier is permitted
  • requirements about when you need to notify AMSA of the transfer, sinking, scrapping, or ceasing operation of your vessel.
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Legislation and incorporated material

Exemptions which may apply

Related content


Refer to the Federal Register of Legislation for previous versions of this marine order.


Last updated: 5 October 2023