Section 11

If any ship to which these regulations apply is either actually or constructively lost, taken by the enemy, burnt, broken up or transferred, every person who, at the time of the occurrence of any of the aforesaid events, owns such a ship, or any share therein shall, immediately upon obtaining knowledge of any such occurrence, if no notice thereof has already been given to the Registrar, give such notice to him, and the Registrar shall make an entry thereof in the register book; and, except in cases where the Terminable Certificate of Registry is lost or destroyed, the master of every ship so circumstanced as aforesaid shall, if such event occurs at her port of registry, forthwith, or if the same occurs elsewhere, within ten days after his arrival in that port, deliver the Terminable Certificate of Registry of such ship to the Registrar, and the registry of the ship in that book shall be considered as closed except so far as relates to any unsatisfied mortgages or existing certificates of mortgage entered therein.