ISPS Code being applied in Southampton, England, with signs prohibiting access to ship security plan pdf next to ships. Development and implementation were sped up drastically in reaction to the September 11, 2001 attacks and the bombing of the French oil tanker Limburg.
Coast Guard, as the lead agency in the United States delegation to the IMO, advocated for the measure. The Code was agreed at a meeting of the 108 signatories to the SOLAS convention in London in December 2002. The measures agreed under the Code were brought into force on July 1, 2004.
The CSO takes data from the Ship Security Assessment or Vessel Security Assessment to advise on possible threats that could happen on the ship. The SSO maintains the SSP and conducts regular security inspections to make sure that the appropriate security steps are always taken.
The SSO also ensures that the security crew is trained for high security level purposes. The Vessel Security Plan must address every requirement in the Vessel Security Assessment. The VSP must establish a number of important roles and steps to provide safety for the marine vessel. Therefore, the VSP must include procedures to allow necessary communication that shall be enforced at all times.