In principle, participation in the Secure Chain constitutes an agreement between the shipping line/ship agent and its customer (the so-called release-to-party). If you are one of the links in the underlying chain, but do not feel confident that you are ready for participation yet — due to required system adjustments, for example -then it is important to contact your client. The Portbase services for the Secure Chain are not only available via a system interface, but also as web services. Click here for more information.