It shall, however, be open to Contracting Parties which have chosen symbol A,2 c as the symbol for a dangerous descent to use symbol A,3 c instead of A,3 c, and to Contracting Parties which have chosen symbol A,2 d to use symbol A,3 d instead of A,3 b.
Vendar pa je pogodbenicam, ki so izbrale simbol A,2 c kot simbol za nevaren klanec navzdol, dana možnost, da uporabijo simbol A,3 c namesto A,3 a, tistim pogodbenicam, ki so izbrale simbol A,2 d, pa, da uporabijo simbol A,3 d namesto A,3 b.