Registering in the Canadian Register of Vessels: Mark your vessel

Your Certificate of Registry is not valid until your vessel is marked.

Note: you must permanently attach markings to the vessel. Make sure that changes or attempts to remove or replace them would cause scarring or damage to the surrounding hull area.

What to display Requirements Where to display it

Name of vessel and port of registry

Readable letters of Latin alphabet and Arabic or Roman numerals that are at least 10 cm high

For pleasure craft and air cushion vehicle (hovercraft):

  • on the exterior hull: display the vessel name and port of registry together

For commercial vessels:

  • on each bow: display vessel name
  • on the stern: display the vessel name and port of registry

Net registered tonnage and official number

Block-type Arabic numerals that are at least 4 cm high

On a clearly visible interior structural part of the hull, mark:

  • “N.R.T.” before the net registered tonnage
  • “O.N.” before the official number

If you used the Assigned Formal Tonnage method, only the O.N. needs to be marked since the net tonnage will not appear on your Certificate of Registry.