- When the ship is operating at a higher security level than the port facility it has notified of its intention to enter;
- When it intends to enter a port facility that is not required to have a port facility security plan or appoint a port facility security
- When the ship is at a higher security level than the port facility (where the port facility is at a higher security level than the ship, it is for the port facility to initiate the DoS);
- In all cases where the ship is operating at security level 3;
- When a ship/ship interface takes place outside the harbour area, whether or not the other ship is required to have a ship security plan, or at what security level the other ship is operating at;
- Following a security incident or security threat to the ship, or the port facility or ship it is interfacing with;
- When the security level is increased while the ship is in port or ship/ship interface is taking place
- When carrying or intending to load or discharge cargoes listed within classes Explosives, toxic substances, radioactive contained in the UN Model Regulations on Dangerous goods.
