The European Code for Signs and Signals on Inland Waterways (SIGNI) provides recommendations for the competent authorities for the installation and application of buoyage and marking on European inland waterways contained in the fifth revision of the European Code for Inland Waterways (CEVNI) (TRANS/SC.3/115/Rev.5). This new edition of SIGNI replaces revision 2 of Resolution No. 22 and the Guidelines for Waterways Signs and Marking (Resolution No.59, revision 2)