TDI Decompression Procedures or how to plan and execute your decompression dives safely


This program is designed as a stand-alone course or it may be taught in conjunction with TDI Advanced Nitrox, Advanced Wreck, or Extended Range Course. It examines the theory, methods and procedures of planned stage decompression diving.

The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of 45 metres / 150 feet unless taught in conjunction with the TDI Extended Range Course.

The most common equipment requirements, equipment set-up and decompression techniques are presented. Students are permitted to use enriched air nitrox (EAN) mixes or oxygen for decompression provided the gas mix is within their current certification level.


You will learn about:

  1. Kit set-up
  2. Equipment requirements
  3. Decompression techniques
  4. Decompression breathing gases
  5. Gas management
  6. Contingency planning 
  7. Problem solving procedures.


Upon successful completion of this course, graduates may engage in decompression diving activities without direct supervision provided:

  1. The diving activities approximate those of training
  2. The areas of activities approximate those of training
  3. Environmental conditions approximate those of training


You will also be qualified to enroll in:

  1. TDI Advanced Nitrox Course
  2. TDI Extended Range Course
  3. TDI Advanced Wreck Course
  4. TDI Entry Level Trimix Course


Did you love your experience and would like to continue your diving adventure?

Continue to explore the underwater world and become a TDI Extended Range Diver (over 3-4 days) or a TDI Entry Trimix Diver (over 3-4 days)!


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