What is DOS or Declaration of Security ?

A Declaration of Security (DOS) is a declaration that addresses the security requirements that could be shared between a port facility and a ship (or between ships) and will state the responsibility for security each shall take.

It is an agreement between both partieS. The DoS is effectively a contract between a ship and a port facility or a ship and another ship that confirms the security responsibilities of each party during the ship/ship interface or ship/port interface. On an operational basis, a DoS may be requested by either a PFSO or SSO within the terms of the ISPS code.

Ships must have available copies of any DoS from the last ten calls at port facilities (including ship-to-ship interfaces) for inspection by officers duly authorised by a port facility’s Government. This should be kept with any other information about its last ten
calls at port facilities (see ISPS Code Part B paragraphs 4.37 and 4.38).

The Declaration of Security shall be completed by: .
  1. The master or the ship security officer on behalf of the ship(s); and, if appropriate, .
  2. The port facility security officer or, if the Contracting Government determines otherwise, by any other body responsible for shore-side security, on behalf of the port facility.


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