Further charts are available at the following websites:
| USA | US Army Corps of Engineers US Inland ENCs |
| Croatia | vodniputovi |
| Republic of Serbia | Plovput |
| Romania | Administration of the Lower Danube |
| Netherlands | FIS portal Niederlande |
| Czech Republic | Geoportal SPS Praha |
| Germany | ELWIS |
| Slovakia | SVP |
| Hungary | ovf.hu |
| Bulgaria | EAEMDR |
| Ukraine | State Hydrographic Service of Ukraine |
| Switzerland | Port of Switzerland |
| Belgium | Flandern |
| Poland | Department of Inland Waterway |
| France | Voies navigables de France |