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Tec 40 Diver Course

Tec 40 Diver Course

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Tec 40 is the first program in the PADI tecrec program, and your first step into technical diving. It's the first subdivision of the full PADI Tec Diver course, and bridges the gap between recreational, no stop diving and technical deep decompression diving. You'll begin to gain the skills, knowledge and experience you need to make decompression dives, and to continue your tech diver training.

At the end of the course you will be qualified to make limited decompression dives to 40m.



The Tec 40 Diver course consists of three knowledge development sections, three practical application sessions, and four training dives.

You'll learn about:

  • Technical diving risks and responsibilities
  • Technical diving equipment, proper rigging, and setup.
  • Gas planning, oxygen limits, and decompression planning.
  • Technical diving techniques and emergency procedures, such as dealing with free flows, manifold leaks and out of gas situations


  • Be a PADI Advanced Open Water Diver (or hold a qualifying certification from another organisation)
  • Be a PADI Enriched Air Diver (or hold a qualifying certification from another organisation)
  • Be a PADI Deep Diver  (or hold a qualifying certification from another organisation)
  • Have a minimum of 30 logged dives, of which at least 10 dives were made with enriched air below 18m
  • Have a medical form, signed by your physician

Required materials:

You'll continue to use these during Tec 45, and Tec 50, courses.

By the end of the course, you will be able to:

  • Use decompression software, and dive computers, to plan and make decompression dives with no more than 10 minutes of total compression, to 40 metres
  • Use a single cylinder of decompression gas with up to 50% opxygen to add conservatism to the required decompression.

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