A Tonnage Certificate is required when a vessel is registered under the British Official Registry of vessels, known as Part 1 Registration. This registry gives the owner proof of title and is therefore a benefit not just to the owner but to others with a financial interest in the vessel. It is also helpful in easing passage when travelling abroad in your boat.
If you are planning to obtain a marine mortgage on your vessel, it is likely that the lender will insist on Part 1 registration.
The scheme has a certificate life of 5 years after which it will need to be renewed.
Only approved organisations can offer this service, and Magellan Yacht Surveys undertake these measurements on behalf of the Yacht Surveyors and Designers Association.