Commercial diving/Basic underwater inspection

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

Required outcomes:
 * 1) Discuss the principles and practice of underwater inspection
 * 2) Describe inspection equipment and tools and discuss their uses
 * 3) Describe measurement and measuring tools and discuss the use of these tools
 * 4) Describe visual inspection procedures
 * 5) Discuss video surveys and their uses
 * 6) Discuss still photography and its uses
 * 7) Describe data recording and reporting for underwater inspection