This exercise is designed to increase the diver's understanding of emergencies that canoccur during public safety dive operations, and of the procedures to follow tosuccessfully mitigate those emergencies. Contingency training must only be conducted ina swimming pool. For the purposes of CFD dive operations, the term "contingency" shallrefer to the rescue of a diver who has been trapped, entangled, is low on air, or otherwisein distress.