Maritime traffic is generally characterized by significant growth of ships and their dimensions. The naval fleet is getting bigger, ports and terminals are getting more and more frequent. Determining the position of the ship at sea has always been one of the most demanding maritime operations. Along with the knowledge and application technique, the most important things are navigational charts. Maritime cha rts are used for direct navigation, ie for determining the position of a ship and solving a multitude of other tasks that require navigational practice. Each naval navigation map contains two basic parts, which are the hydrographic and topographic part of the map. Their updates are important because of changes that may occur on the surface of the sea or at the sea bed, and they greatly affect the safety of navigation. In the era of ever increasing modernization and advancement of technology, electronic navi gational charts have been developed by the ship's officers to facilitate the work. Electronic navigational charts represent a new generation that has helped navigate the seas. Therefore, it is no wonder that their use has recently been experiencing rapid growth. Their significant usage is conditioned by quicker and easier archiving, activation, and correction procedures. In addition, their standardization is reflected in both format and content, but also regularly in the publication of national hydrograph ic institutes. The International Convention on the Protection of Life at Sea commits all vessels to possession of appropriate and updated maritime charts. Given this fact, cooperation is greatly important between shipyards, and developed and underdeveloped coastal states. Along with appropriate cooperation, important nautical data is collected for which the rule of universal availability of nautical publications is available on a worldwide scale.