A ship to ship (STS) transfer operation is the transfer of cargo between two ships alongside each other, either while stationary or underway.
Bringing two ships together and separating them while underway is an unusual occurrence for many ships and the crews onboard. Consequently, heightened risks are associated with these operations, where skill and experience play crucial roles. This article examines the risks involved in manoeuvring the ships while they are underway and the necessity to be ready to abort the operation should circumstances change.
Before engaging in an STS operation, each ship follows its own set of protocols, typically integrated into the ships Safety Management System (SMS) and risk assessment. Tankers will have a Ship-to-Ship Transfer Operation Plan (STS plan) approved by their flag to consult and follow, and we recommend that the latest version of the ‘Ship to Ship Transfer Guide’ is consulted when preparing for this operation.
Full advisory at the following link.