New  DCD tables 2025

Over the past decade, developments in professional diving operations have highlighted the need for several updates to the DCD 2015 tables.

Based on operational data and feedback reported by the diving industry in recent years, we have published a revised version of the DCD 2015 tables and updated the underlying computer model accordingly.

The model was originally developed in 1975 by Prof. Dr. W. Sterk and was used extensively during the construction of the Eastern Scheldt Storm Surge Barrier (1977–1986), as well as in offshore diving operations. Since then, it has been continuously refined using reported dive data and has consistently demonstrated its reliability in generating safe and effective decompression schedules.

In 2015, the DCD Decompression Tables (Revised NDC Tables) were developed and published by Prof. Dr. W. Sterk and Dr. M.P.C. van der Huls. These tables served the professional diving industry well for many years. However, as an increasing number of diving projects required specialized decompression schedules, it became clear that a revision was needed. This task was carried out by Prof. Dr. W. Sterk and Dr. S.H. Hoitinga.

The DCD 2025 tables incorporate the latest operational experience, project requirements, and field data gathered over the past decade. As a result, they remain scientifically robust while continuing to meet the practical demands of modern professional diving operations. However, it is still possible to generate custom tables on demand for specific operations.