The IWG for Ocean Data and Information System Activities (IWG ODIS-Act) was decided upon to propose a restructuring of ODIS Programme Activities. This restructuring is intended to focus the organization on shared data themes (e.g., physics, biodiversity, socio-economics) and delivery to stakeholders, acknowledging that disciplinary expertise was scattered across existing ODIS Programme Activities. The IWG's initial members will include representatives of the ODIS Steering Group and the ODIS Programme Activity Steering Groups. (Decision IODE-28/3.4.1.2)