Safely ascend after deep dives

The TDI Decompression Procedures Course prepares you for planned staged decompression diving beyond the normal sport diving limits.

The TDI Decompression Procedures Course combines with the TDI Advanced Nitrox course to 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.

In this course you’ll learn:

  • Decompression dive planning (Gas Choice, Deco models, Emergency Planning)
  • Decompression procedures
  • Proper trim, buoyancy and finning techniques
  • Emergency procedures (equipment failures, catastrophic gas loss, omitted decompression, navigational errors, etc.)
  • Equipment considerations, cylinder labeling, analyzing nitrox mixtures, and gas blending procedures


  • Minimum of 25 logged open water dives

Prerequisite certifications

  • Advanced Open Water Diver

min age 18 / time commitment 4 days / max depth 150ft/45m


Includes course materials and certification card

Offered by: