6Survey and measurement of ship.
Every British ship shall before registry be surveyed by a surveyor of ships and her tonnage ascertained in accordance with the tonnage regulations of this Act, and the surveyor shall grant his certificate specifying the ship's tonnage and build, and such other particulars descriptive of the identity of the ship as may for the time being be required by the Board of Trade, and such certificate shall be delivered to the registrar before registry.