The first editions of CEVNI and SIGNI, adopted in 1962 and 1957, respectively, drew heavily on the provisions of the Policy Regulations in force on the Rhine, and were used as a basis for the elaboration of the DC &quot; Basic provisions relating to Navigation on the Danube &quot; .
The first editions of CEVNI and SIGNI, adopted in 1962 and 1957, respectively, drew heavily on the provisions of the Policy Regulations in force on the Rhine, and were used as a basis for the elaboration of the DC &quot; Basic provisions relating to Navigation on the Danube &quot; .