The Istituto Nazionale di Oceanografia e Geofisica Sperimentale (OGS) hosts the National Oceanographic Data Centre (NODC) for Italy, representative at the International Oceanographic Data and Information Exchange system of UNESCO, operating within the scope of Intergovernmental Oceanographic Commission (IODE/IOC), active for the storage, classification and dissemination of marine data sets.NODC maintains a database with more than 360,000 vertical profiles of physical and biochemical variables collected in the Mediterranean over the last 100 years, fully validated according to international standards and made available through a simple web interface.NODC operates as a national reference for the management of marine historical data (physics/chemistry), promoting the exchange of information with the development of a national information system based on protocols and technologies already adopted at European level, and acting in line with the EU instructions.The OGS/NODC information system is fully integrated into the European network of distributed databases EU-SeaDataNet (pan-European Infrastructure for Ocean and Marine Data Management). This infrastructure is also used by DG MARE EMODnet (European Marine Observation and Data Network) tenders as an element of integration between different themes.