IANTD Technical couse overview
Tek Essentials Diver
This mid-level Specialty Continuing Education Diver Program is designed to enable the certified diver to extend proficiency in the water and to review and put in practice the Essentials learned in any IANTD diver classes. This systematic learning and professional training is designed to enhance the student’s personal and team underwater skills. Development of buoyancy, trim, balance and propulsion. Refine and expand fundamental diving skills. Equipment Streamlining and configuration. Diving safety, situational awareness and accident prevention. Enhanced Dive planning and gas management. Decompression overview and minimum decompression procedures. This program is designed for divers who wish to increase their skill competency by further developing their diving skills to be safer, more comfortable and more efficient in the water while expanding the divers basic diving skills to take more advanced recreational and/or technical diving programs.
Key outcomes
The course concentrates on:
- Safe use of enriched air and staged decompression
- Basic twinset/dual‑cylinder handling and valve drills
- Team positioning and communication
- Equipment configuration and streamlining
- Emergency gas management and team procedures
Course Focus
Tek Essentials Diver introduces recreational divers to the fundamentals of planned decompression, gas planning, and basic technical equipment configurations.
The course is designed as the first step for divers who want to safely extend depth and gas options beyond standard recreational limits.
Students learn conservative planning, gas switching, and emergency procedures.
The emphasis is on control, consistency, and repeatability.
Tec Essentials Diver is not a shortcut, it is a smart investment in long‑term diving competence.
Advanced EANx Diver
This Program is designed to extend the diver’s knowledge in the use of EANx for Sport diving.
It further develops diving skills and provides a greater understanding of the EANx concept of diving.
The Program employs the use of EANx mixes. The purpose of this program is to qualify divers to do dive to 150 fsw (45 msw)
and Decompression with up to 100% Oxygen and 1.6 PO2 for DECO gas.
Key outcomes
- Calculate MOD/EAD and set conservative depth limits;
- Use EANx for accelerated decompression;
- Advanced buoyancy and trim for deeper profiles
- The course emphasizes understanding and decision making rather than simply following procedures.
Advanced EANx Diver trains divers to plan and conduct deeper dives using enriched air nitrox mixtures safely and effectively.
The program emphasizes oxygen exposure management, EAD/MOD calculations, and decompression planning using EANx and oxygen for deco
Advanced Recreational Trimix Diver / Plus
ADV. Rec. Trimix Diver:
This Program is designed to extend the diver’s knowledge in the use of EANx for Sport diving. It further develops diving skills and provides a greater understanding of the EANx concept of diving. It is also intended to supplement the skills of Recreational Trimix Divers. The Program employs EANx mixes from 21% oxygen to a maximum of 1.5 PO2 combined with a Helium content in which case the END will not exceed 100 fsw (30 msw) may be used. The purpose of this program is to qualify divers to dive up to 150 fsw (45 msw) and perform decompression stops required dives.
Advanced Recreational Trimix Diver introduces helium‑based gas mixtures for deeper recreational profiles while maintaining conservative safety margins. The course covers blend theory, gas planning for trimix, decompression strategies, and practical use of helium mixes to reduce narcosis.
ADV. Rec.Trimix Diver Plus:
Same as ADV. Rec.Trimix Diver plus below
The purpose of this program is to qualify divers to dive up to 170 fsw (51 msw) and perform decompression stops required dives
Key outcomes:
- Understand trimix composition and effects on narcosis;
- Plan dives using custom blends and appropriate deco gases;
- Execute deeper dives with staged decompression and team protocols
The course builds your capability to think, plan, and act like a technical diver, not just follow a checklist.
The goal is to develop a diver who is self‑sufficient within a team, capable of handling real‑world technical diving challenges.
Normoxic Trimix Diver / Plus
This Program is designed to train those who wish to dive to depths between 130 fsw (39 msw) and 200 fsw (60 msw), but who do not wish to breathe air below 130 fsw (39 msw). This Program is further designed to train divers in the safer use helium-based gas mixtures.
Normoxic Trimix Diver:
Prepares divers to conduct dives typically between 100 fsw (30 msw) and up to 200 fsw (60 msw) using normoxic helium‑oxygen‑nitrogen blends so that bottom gas oxygen fraction remains safe for deep exposure. The program focuses on advanced gas planning, helium use, decompression management, and risk mitigation for deep dives.
Normoxic Trimix Diver Plus:
Is designed to train those who wish to dive to depths between 130 fsw (39 msw) and 250 fsw (75 msw), but who do not wish to breathe air below 130 fsw (39 msw). This Program is further designed to train divers in the safer use helium-based gas mixtures
Key outcomes:
- Plan and execute normoxic trimix dives with conservative MOD limits;
- Advanced emergency procedures and team coordination for deep profiles;
- Use of multiple gases for staged decompression.
CCR Advanced EANx Diver
This Program is The CCR Advanced EANx Diver course is the entry point into decompression‑capable rebreather diving. It builds the diver’s ability to conduct extended dives using air diluent and EANx for decompression, while maintaining safe PO₂ management and bailout readiness.
What students learn
- Oxygen management, setpoint strategies, and loop control
- Decompression planning using EANx and oxygen
- Hypoxia, hyperoxia, and hypercapnia recognition & response
- Open‑circuit bailout procedures and ascent protocols
- Equipment configuration, pre‑dive checks, and emergency drills
Typical training range
- Max depth: ~40 m (air diluent)
- Decompression allowed
- Training dives emphasize stable buoyancy, loop control, and bailout ascents
CCR Advanced Recreational Trimix Diver (ART & ART+)
The CCR Advanced Recreational Trimix Diver course introduces helium‑based diluent to reduce narcosis and improve clarity at deeper recreational/technical depths. It is ideal for divers transitioning from air‑diluent CCR to helium‑supported decompression diving.
What students learn
- Use of light trimix diluent for deeper CCR profiles
- Gas planning with helium mixes
- Decompression strategies with multiple gases
- Advanced bailout planning and team protocols
- Managing loop volume, work of breathing, and thermal considerations at depth
Typical training range
- Max depth: ~45 m (For ART+ 51m)
- Decompression allowed
- Focus on stable deep‑trimix loop management and bailout readiness
Prerequisites
CCR Advanced EANx Diver or equivalent
Demonstrated comfort with decompression and bailout skills
CCR Normoxic Trimix Diver (Normoxic+ 75m)
This The CCR Normoxic Trimix Diver program trains divers to safely conduct deeper technical dives using normoxic trimix diluent. This is the major step into true technical CCR diving, expanding operational range while maintaining safe PO₂ and narcosis levels.
What students learn
- Planning and executing dives with normoxic trimix diluent
- Advanced decompression strategies using multiple gases
- Complex bailout planning, including deep bailout sequencing
- Failure management: electronics, sensors, loop integrity, and gas delivery
- Team protocols for deep CCR operations
Typical training range
- Depth range: ~60 m (normoxic+ 75m)
- Full decompression procedures
- Emphasis on deep‑water problem solving and bailout execution
Prerequisites
Minimum age 18
CCR Advanced Recreational Trimix Diver or equivalent
Significant logged CCR experience, including decompression dives
Program is designed
CCR Trimix Diver
The CCR Trimix Diver program trains experienced rebreather divers to conduct deep technical dives using full trimix diluent, extending operational range while maintaining safe PO₂, narcosis, and decompression profiles.
This is the transition from normoxic-level diving into true deep trimix operations, where precise planning, disciplined loop management, and robust bailout strategies are essential.
What students learn
- Use of full trimix diluent for deep CCR profiles
- Advanced decompression planning with multiple gases
- Deep bailout sequencing, including staged and travel gases
- Managing loop performance, work of breathing, and thermal load at depth
- Team protocols for deep CCR operations, including lost diver, lost line, and emergency ascent strategies
- Failure handling for deep environments:
- electronics and sensor issues
- loop integrity failures
- gas delivery and bailout transitions
Typical training range
- Depth range: ~75–100 m (Expect ~100m)
- Full decompression procedures
- Emphasis on deep‑water problem solving, bailout execution, and stable loop control under high task load
Prerequisites to
enroll the Tec Essentials course, you must meet these qualifications:
- Advanced Open Water Diver
- 15 years old
Prerequisites to
enroll the Advanced EANx Diver course, you must meet these qualifications:
• Advanced Open Water Diver
• Enriched Air Diver
• Deep Diver
• 15 years old
Prerequisites to enroll the Advanced Recreational Trimix Diver, you must meet these qualifications:
• Advanced Open Water Diver
• Enriched Air Diver
• Deep Diver
• 15 years old
* Proof of a minimum of 30 logged dives or sufficient experience to satisfy the instructor that the student has the ability and knowledge to continue into this level of training.
Prerequisites to enroll Normoxic Trimix Diver course, you must meet these qualifications:
• Advanced EANx Diver or higher or equivalent.
• Must be a minimum of 18 years old.
Must provide proof of a minimum of 100 logged dives, of which at least 30 were deeper than 90 fsw (27 msw)
a Diver Medical Form signed by a physician within the last 12 months.
Prerequisites to enroll CCR ADV EANx Diver course, you must meet these qualifications:
Option 1:
- Must be qualified in IANTD Recreational CCR Diver or equivalent
- Have logged 20 open water dives with at least 20 hours underwater using a rebreather.
Option 2:
- Must be qualified in IANTD EANx Diver or equivalent.
- Must be qualified in IANTD Deep Diver or RCCR Deep Diver or equivalent.
- Have logged 30 open water dives with at least 25 hours underwater using open circuit scuba and have logged at least five dives to a minimum depth of 100 fsw/30 msw
For both options:
- Must be a minimum of 18 years old.
- a Diver Medical Form signed by a physician within the last 12 months.
Prerequisites to enroll CCR ART Diver course, you must meet these qualifications:
Option 1:
- Must be qualified in IANTD Recreational CCR Diver or equivalent
- Have logged 20 open water dives with at least 20 hours underwater using a rebreather.
Option 2:
- Must be qualified in IANTD EANx Diver or equivalent.
- Must be qualified in IANTD Deep Diver or RCCR Deep Diver or equivalent.
- Have logged 30 open water dives with at least 25 hours underwater using open circuit scuba and have logged at least five dives to a minimum depth of 100 fsw/30 msw
For both options:
- Must be a minimum of 18 years old.
- a Diver Medical Form signed by a physician within the last 12 months.
Prerequisites to enroll CCR Normoxic Diver course, you must meet these qualifications:
- Must be a qualified IANTD Rebreather Diver
- Must provide proof of a minimum of 50 logged dives with a minimum of 50 hours using a rebreather. At least 25 logged dives and 25 hours shall have been made with the same specific rebreather unit to be used in the course. A minimum of 10 rebreather dives shall have been made to a depth of at least 100 fsw (30 msw) requiring decompression stops.
NOTE: If the student is also certified as Trimix Diver (Open Circuit) and have the 100 hours on the unit specific, once the CCR Normoxic Trimix program is finished and the certification issued, the Instructor can continue to the CCR Trimix program.
For Normixic+
- Must be a qualified IANTD Rebreather Normoxic Trimix Diver
- Must provide proof of a minimum of 50 logged dives with a minimum of 50 hours using a rebreather. At least 25 logged dives and 25 hours shall have been made with the same specific rebreather unit to be used in the course. A minimum of 10 rebreather dives shall have been made to a depth of at least 100 fsw (30 msw) requiring decompression stops.
NOTE: If the student is also certified as Trimix Diver (Open Circuit) and have the 100 hours on the unit specific, once the CCR Normoxic Trimix program is finished and the certification issued, the Instructor can continue to the CCR Trimix program
For both courses:
- Must be a minimum of 18 years old.
- a Diver Medical Form signed by a physician within the last 12 months.
Prerequisites to enroll CCR Trimix Diver course, you must meet these qualifications:
- Must be a qualified IANTD Rebreather Normoxic Trimix Diver
- Must be a minimum of 21 years old.Must provide proof of a minimum of 100 logged dives with a minimum of 100 hours using a rebreather. At least 50 logged dives and 50 hours shall have been made with the same specific rebreather unit to be used in the course. A minimum of 30 rebreather dives shall have been made to a depth of at least 100 fsw (30 msw) requiring decompression stops. At least 10 of these 30 dives shall have been made to a depth deeper than 164 fsw (50 msw) using a gas mix containing helium and requiring decompression stops; these dives shall have been completed after qualification as a CCR Normoxic Trimix diver The student shall have dived with the rebreather unit within the 6 months prior to starting the course.
- Must be a minimum of 18 years old.
- a Diver Medical Form signed by a physician within the last 12 months.