TDI Advanced Nitrox Diver
Prerequisites
Minimum age 18, 15 with parental consent
Minimum certification TDI Nitrox Diver*
Proof of 25 logged open water dives
TDI Advanced Trimix Diver
Prerequisites
Minimum age 18
Minimum certification TDI Extended Range or Trimix Diver*
Show proof of 100 logged dives, 25 must be deeper than 30metres
TDI Deco Procedures Diver
The TDI Decompression Procedures Course combined with the TDI Advanced Nitrox course form the foundation of all other technical courses.
Prerequisites
Minimum age 18
Minimum certification SDI Advanced Adventure Diver, Advanced Diver*
Proof of 25 logged open water dives
TDI Helitrox Diver
Prerequisites
Minimum age 18
Minimum certification of SDI Advanced Diver (with Deep specialty) or TDI Intro to Tech Diver, or equivalent
Certified as TDI Advanced Nitrox Diver (unless being taught concurrently)
Proof of 50 logged dives
TDI Extended Range Diver
Prerequisites
Minimum age 18
Certified as TDI Advanced Nitrox Diver & TDI Decompression Procedures Diver*
Proof of a minimum of 100 logged dives, with 25 deeper than 30 metres
TDI Entry Level Trimix Diver
Prerequisites
Minimum age 18
Minimum certification TDI Advanced Nitrox and Decompression Procedures Diver*
Proof of 100 logged dives