CDG
Safety Code

CAVE DIVING GROUP SAFETY CODE

1. A trainee should be accompanied by a qualified diver unless he has had considerable cave diving experience before joining the Group.
2. A trainee diver on his first cave dives should either be accompanied by an experienced diver, or should have a fully kitted, experienced diver at base.
3. A solo diver should always have someone at base.
4. A diver should always be connected to base by a line.
5. A diver should always have a 100% safety margin of air for the planned dive. This means he must obey the "Thirds Rule" of air consumption, being one-third in, one-third out, and one-third for emergency use only.