When is dos issued ?

146
FOLLOW

A ship can request completion of a Declaration of Security when:
• the ship is operating at a higher security level than the port facility or another ship it is
interfacing with;
• there has been a security threat or a security incident involving the ship or involving the
port facility, as applicable;
• the ship is at a port which is not required to have and implement an approved port facility
security plan; or
• the ship is conducting ship-to-ship activities with another ship not required to have and
implement an approved Ship Security Plan
When the Security Level increases beyond the level contained in the DoS, the continuing DoS  becomes void and a new DoS must be signed and implemented.
A copy of the Declaration of Security must be kept by both the ship and the port facility.
The Declaration of Security shall be made available to government authorities upon request.
Copies of Declarations of Security must be kept for at least the last 10 port calls