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TEC 40 CCR The first level of training with Type T CCRs

The Tec 40 CCR Diver Course

Learn to plan and make dives using air diluent and air or enriched air (EANx) bailout gas on Type T (technical) closed-circuit rebreathers (CCR) to a maximum of 40 meters/ 130 feet with a single decompression stop of no more than 10 minutes.

Tec 40 CCR Diver is the first level of training that addresses technical diving with Type T CCRs, which include a range of electronic CCRs (eCCRs) and manual CCRS (mCCRs). Tec 40 CCR Diver introduces student divers to diagnosing life-support problems and when possible, returning to the loop to complete the dive with limited decompression obligations.

This training is significantly more challenging than recreational rebreather diving because divers learn to be both a tec diver as well as learning to tec dive with a CCR.

What is a Closed-Circuit Rebreather?

Closed-Circuit Rebreathers are a type of scuba that reuses the gas you exhale. This is the primary difference between CCR and Open-Circuit scuba.

All CCRs used on PADI TecRec CCR courses must be third party tested and manufacturers must ensure they meet a comprehensive list of requirements and register them with PADI.

Background on Closed-Circuit Rebreathers

Technical diving has been revolutionized by the development, availability and reliability of Closed-Circuit Rebreathers.

CCRs provide numerous benefits to the technical diver, including:

  • Reduced gas consumption
  • Optimum EANx blends for decompression
  • A wider range of solutions to equipment problems

Consequently, CCRs potentially allow the technical diver a greater access to time underwater - greater time based on gas logistics when compared with an open circuit technical diver and more time available to find solutions to gas management problems. As time is critical and a finite resource diver wanting to dive at and beyond the recreational envelope can now choose PADI Technical CCR training to achieve their goals.

What you'll learn

You'll learn to make no stop or limited decompression dives using a Type T CCR to a maximum depth of 40 meters/ 130 feet during eight training dives.

You'll also cover:

  • Basic CCR function
  • Tec equipment and CCR setup and checklists
  • Diving CCRs and handling potential problems
  • Decompression software and open-circuit bailout requirements
  • Post-dive procedures and disassembly
  • Thinking like a Tec CCR diver

After qualifying as a PADI Tec 40 CCR Diver, you'll need to qualify if you want to use a different Type T CCR model because procedures vary with each model. However, you don't need to repeat the entire course. Just take a PADI Tec CCR Qualifier program that focuses on the knowledge and skills needed to use a different Type T CCR model.

To obtain your PADI physical materials from our dive centre, simply contact and Book your course now.

Recommended text: Technical Diving from the Bottom up!

The Tec 40 CCR Refresher

This Refresher Program covers the level of skills required to make Tec 40 CCR dives.

Scuba gear you'll use

  • Stage/decompression cylinders with regulator, SPG, mounting hardware and proper labeling/markings. Two per diver will be required
  • Backup decompression cylinders as appropriate and required for the environment
  • BCD and harness – redundant buoyancy control is required (double bladder BCD or dry suit if suitable for weight of equipment worn)
  • Depth gauge/computer and backup depth gauge/computer
  • Timing device and backup timing device
  • Trimix decompression information (tables/trimix computer) and backup decompression information
  • Exposure suit appropriate for environment and dive duration. (If you use a dry suit, you should be trained/experienced with its use in recreational and technical diving prior to using it for trimix training or diving.)
  • Argon dry suit inflation or other inflation system as needed
  • Weight system (if needed)
  • Jon line (if needed for current diving environments)
  • Delayed Surface Marker Buoy (DSMB)
  • Reel
  • Lift bag (bright yellow or per local community practice preferred)
  • Dive knife / cutting device and backup slate, backup mask (optional)
  • Compass, lights (optional)
  • Drift kit (if drift decompressing)


  • PADI Advanced Open Water DiverPADI Enriched Air DiverPADI Deep Diver (or have experience of more than 10 dives to 30 meters/ 100 feet) certification and at least 30 dives logged with specific experience requirements
  • Prior to Training Dive Five, student divers must be certified as PADI Rescue Divers
  • Prior to certification, student divers must have 50 dives logged
  • There are provisions for other qualifying certifications
  • 18 years old

Your Next Step

Feeling up to the challenge? Complete the PADI Tec CCR 60 Diver Course the next step to deeper adventures with Closed-Circuit Rebreathers.

Visit the PADI TecRec Blog regarding everything Tec and Rec related.

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Course Price

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