A change of ownership must be sent in writing to the Registrar at your ship's port of registry, and must include the following documents:
A change of address must be sent in writing (via e-mail, mail or facsimile) to the Registrar at your ship's Port of Registry and should include the following information:
There is no fee for a change of address.
if your address changes, you must contact us to update your information. Otherwise your registration may be suspended or canceled.
Here is the North American toll-free telephone number: 1-877-242-8770.