Translate the following English sentence to French:
"It is important that the principle of transparency is affirmed and it is a good thing that the ECB has set communication standards which could be an excellent point of reference for the activity of the central banks of the individual countries."
Il est important que le principe de la transparence s'affirme et il est bon que la BCE fixe des normes en matière de communication qui peuvent être un point de référence excellent pour l'activité des banques centrales de chaque pays.