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AMSA 173

Notice of alteration to ship (form 173)


Overview

You can use this form to give us notice of an alteration to a ship.

How to complete this form

If the registered agent is a corporation, the document may be formally executed under the corporate seal. Alternatively, an officer of the corporation may sign it, endorse it with a legible statement of their name and designation and have the signature witnessed.

Submitting the form

Forms can be submitted along with the lodgement fee to:

The Registrar of Ships
Australian Shipping Registration Office

Postal address:
PO Box 255
Coffs Harbour NSW 2450

Courier address:
Level 2, 28 Gordon Street
Coffs Harbour NSW 2450 Australia
Telephone (02) 6279 5925

Last updated: 5 September 2025