International Hand Signals

These hand signals that every diver should master after completing basic diving training are part of the international standard ISO 24801-2 and are therefore recognized by most diving organizations and incorporated into their basic diving training.

ISO 24801-2 is an international standard that defines the minimum requirements for the training of independent recreational divers. It describes what a diver must be able to do and know in order to dive safely with a buddy without direct supervision (e.g., by an instructor).

ISO 24801 series

ISO 24801-1: Supervised Diver

ISO 24801-2: Autonomous Diver

ISO 24801-3: Dive Leader