CMAS One Star Diver
Diving up until 20 meters-deep when joined by same-level divers, breathing air and able to plan the dives.
Diving when appropriate support is provided at the surface, in an environment that guarantees the same (or better) conditions as those where trained.
Not able to execute dives requiring decompression stops, dives that do not allow direct access to the surface or night dives.
Requires: minimum age (14), parental permission (for minors) and basic swimming abilities.
It is the duty of every diver to make sure beforehand that there are no reasons that might prevent him/her from diving - if these reasons exist, this must be declared in writing.