This article covers the safety of navigation in Africa and considers the significant limitations both in the hydrographic surveys of several coastal countries, and the production and updating of nautical charting. This responsibility is internationally assumed by other members of the International Hydrographic Organization (IHO). In the case of the maritime spaces of the Portuguese-speaking African countries (Cape Verde, Guinea-Bissau, São Tomé and Príncipe, Angola and Mozambique) it has been the responsibility of Portugal, through the Hydrographic Institute (IHPT). IHPT ensures the production of their nautical mapping, which includes a structured and regular collection of hydrographic data, carried out under bilateral cooperation agreements. This responsibility is usually designated to a Primary Charting Authori-ty (PCA).
Over the last 20 years, IHPT has taken advantage of a number of opportunities to support Portuguese-speaking African countries. This has ensured considerable steps have been taken to improve hydrographic surveys, the production of new nautical cartography and supporting the development of capabilities in marine sciences and techniques. This is currently one of the IHPTs most relevant programs involving a notable effort; the purpose of this article is its dissemination.