Confédération Mondiale des Activités Subaquatiques

Confédération Mondiale des Activités Subaquatiques (CMAS; English: World Underwater Federation) is an international federation that represents underwater activities in underwater sport and underwater sciences, and oversees an international system of recreational snorkel and scuba diver training and recognition. Its foundation in Monaco during January 1959 makes it one of the world's oldest underwater diving organisations.

Source: Wikipedia — Confédération Mondiale des Activités Subaquatiques (CC BY-SA 4.0)