TEC (TECH) CROSSOVER

WHY SO MANY TERMS

Every agency name their courses differently and it is sometimes almost impossible to keep track of all the different names. We have compiled some of the common agencies that provides Tec (Tech) diving courses and you can use the attached chart to compare each course to PADI level of Tec Diving Courses.

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TECHNICAL DIVING COMPARISON

Below is a chart that compares the different agencies and their courses. This chart was compiled in 2018 and last updated was in Jan 2019.

PADI

Enriched Air Specialty

TEC 40

Tec 45

TEC 50

Tec 50

TEC TRIMIX 65

Tec Trimix

GUE

Rec 2

Rec 3

Tech Level 1

Tech Level 1

Tech Level 1

Tech 60

Tech 2

TDI

Nitrox

Advanced Nitrox- 40 meters/130 feet, up to 100% O2, No Decompression

Decompression Procedures- 45 metres/150 feet, air/nitrox bottom gas

Helitrox- 45 metres/150 feet, unlimited decompression, Helitrox bottom gas (min 21% o2, max 20% helium)

Extended Range-55 metres/180 feet, unlimited decompression, air/nitrox bottom gas

Trimix- 60 metres/200 feet, unlimited decompression, trimix bottom gas (min 18% o2)

Advanced Trimix- 100 metres/330 feet, unlimited decompression, hypoxic (less than 18%O2) trimix bottom gas

SSI XR

Nitrox

Extended Range Nitrox

Extended Range

Extended Range Trimix

Technical Extended Range

Technical Extended Range

Hypoxic Trimix

IANTD

Nitrox

Advanced Nitrox

Technical Diver

Advanced Recreational Trimix

Technical Diver

Normoxic Trimix

Trimix

TECHNICAL DIVING

Technical (tec) diving means going beyond recreational scuba diving limits. But, tec divers will tell you that it’s really about the challenge and adventure of exploring places that no one else has ever seen. Tec diving is not for everyone, but it does attract experienced divers who want to go beyond their current limits and are willing to accept the added risks, training, investment and commitment it demands. If this is you, then PADI TecRec courses are your ticket to extreme adventure.

what is technical diving?

Technical scuba diving involves going beyond recreational scuba diving limits and includes one or more of the following:

  • Diving beyond 40 metres/130 feet Required stage decompression
  • Diving in an overhead environment beyond 40 linear metres/130 linear feet of the surface
  • Accelerated decompression and/or the use of variable gas mixtures during the dive Use of extensive equipment and technologies

In technical diving the surface is often inaccessible in an emergency, so tec divers use extensive procedures, equipment and training to manage the added risks and potential hazards. Although founded on extensive open-circuit scuba technology, tec diving has been revolutionized by the development, availability and reliability of closed circuit rebreathers (CCRs). CCRs have numerous benefits and provide tec divers with significantly more time underwater.

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