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TDI Advanced Nitrox & Decompression Procedures Course

This course will train you to make technical decompression dives to 150'

Sidemount divers


  • 18+ years old

  • Advanced Open Water Certified or above

  • 25 logged dives

  • RSTC Medical Form signed by a Doctor if the diver has any medical conditions. Download the Medical Form Here

The Advanced Nitrox & Decompression Procedures are two courses that are normally completed at the same time.

Advanced Nitrox Course Objective & Description:

  • Are you looking to expand your dive time? Maybe you’re a scientific diver or photographer looking to stay in the water a little longer? The TDI Advanced Nitrox Course qualifies divers to use enriched air nitrox from EAN 21 through EAN 100 percent within your current certification level to a maximum depth of 130 feet during dives that do not require staged decompression.

  • You will learn about gas management, gas choices, skill development as it pertains to technical diving, gas switches, risk management, and much more.

Decompression Procedures Course Objective & Description:

  • Are you finding your no-decompression limits (NDLs) a limiting factor to dives? Do you have to ascend sooner than you would like? 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 150 feet.

  • The skills in this course include dive planning, choosing the correct gases, contingency planning, decompression diving procedures, equipment configurations, drills, team awareness, and much more.

technical diver on the wall

What is Involved?​​

  • Independent Study (home study) 

  • ​Knowledge Development (classroom) 

  • Minimum of 6 Dives

  • Technical Equipment Workshop

  • Dive planning workshop

Required Course Materials:

  • TDI Advanced Nitrox Manual

  • TDI Deco Procedures Manual

Required Equipment:

  • Alternative second stage octopus attached to a primary regulator or a redundant scuba unit; 13 cu ft minimum

  • A submersible pressure gauge

  • Depth gauge and automatic bottom timer and/or dive computer

  • Buoyancy compensator device (BCD) with power inflator

  • Line cutting device

  • Exposure suit adequate for the open water environment

  • Cylinder and regulator properly labeled and cleaned as required for EAN mixtures 

  • Slate

  • Lift Bag & Reel

How Many Students In The Course?

This course is scheduled as needed is normally conducted as a private course. However, a maximum of 8 students are permitted.

How Long Is The Course? 

This course is completed in 4-5 days



Advanced Nitrox & Deco Procedures -- $1,600 

Into to Tec, Decompression Procedures & Advanced Nitrox -- $2,00

tech sidemount diver
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