set a reasonable deadline within which the registered owner must remove the wreck, taking into account the nature of the hazard determined in accordance with article 6;

inform the registered owner in writing of the deadline it has set and specify that, if the registered owner does not remove the wreck within that deadline, it may remove the wreck at the registered owner's expense; and

inform the registered owner in writing that it intends to intervene immediately in circumstances where the hazard becomes particularly severe.