Commercial diving/Perform underwater work

Relevance: Scuba diving (partial), Surface supplied diving (full), Surface oriented wet bell diving (full).

Required outcomes:

1. Demonstrate the ability to perform inspection dives
2. Demonstrate the ability to perform underwater searches
3. Demonstrate the ability to safely use hand and power tools underwater
   1. Demonstrate the ability to safely use hand tools underwater
   2. Demonstrate the ability to safely use power tools underwater
4. Demonstrate the ability to carry out underwater rigging and lifting activities