As sport divers planned decompression is not something that we do or have been
taught. The TDI Decompression Procedures course prepares you for planned staged
decompression diving. With a maximum operating depth of 45m/150 feet, this course is
your first step beyond the normal sport diving limits. Your TDI Instructor will provide you
with valuable information and skills, among the topics covered are: (1) Kit set-up, (2)
Equipment Requirements, (3) Decompression Techniques, (4) Decompression
Breathing Gases, (5) Gas Management, and (6) Contingency Planning.

The TDI Decompressions Procedures course combined with the TDI Advanced Nitrox
course form the foundation of all other technical courses.  After these two courses and
some additional experience, the stage has been set for you to move onto additional
technical levels. Some of the materials you will be using include the TDI Divers Guide to
Decompression Procedures, US Navy or Buhlmann Air Decompression Tables (made
of vinyl for easy in-water use and storage)

Upon successful completion of this course students may enroll in TDI Extended Range
Course, TDI Advanced Wreck Course, or TDI Entry Level Trimix.


 Equipment Requirements

  • Dual Tanks (a minimum of 160 cu ft of air) with a manifold connecting the tanks
    and an isolation valve.
  • Submersible pressure gauge on all Cylinders
  • Depth gauge, bottom timer and/or dive computer (does not need to be air
    integrated).
  • Proper Cylinder Markings for Gas in all Cylinders
  • Oxygen Analyzer
  • Pony Bottle with Oxygen DECO Mix (min. 30 cu ft)
  • Slate, Compass, Reel and Surface Marker Buoy, Jon Line

Materials Requirements

  • TDI Decompression Procedures Student Manual
  • Deco Planner Software by GUE (portable on laptop or palm)
  • Subscription to Scubaboard
  • Calculator, Notebook, Pen/Pencil
  • Logbook / Clipboard

Students Prerequisites

  • Be a minimum of eighteen (18) years old.
  • Have a minimum certification of Advanced Diver or equivalent
  • Have a minimum certification of Advanced Nitrox or equivalent
  • Show proof of fifty (50) logged open water dives