The first step into decompression CCR diving under the guidance of a RAID CCR Instructor Trainer & Examiner.
Instant access to your online learning, course preparation modules. Begin training immediately.
If your aspirations stretch beyond conventional limits and you are ready to truly broaden your underwater horizons, the RAID Decompression Diver course represents your definitive first step into the world of technical exploration. This certification is meticulously designed to equip you with the essential knowledge, precise techniques, and disciplined mindset required to safely and confidently navigate the realm of decompression diving down to 40 meters (132 feet).
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To enrol in the RAID Decompression Diver course, you must meet the following requirements:
Be a minimum of 16 years old and a certified diver for at least 3 months.
Hold a certification equivalent to a RAID Explorer 30 or RAID Advanced 35 diver.
Be certified as a RAID Nitrox and RAID Deep 40 Diver or equivalent.
Have logged a minimum of 20 hours underwater or 40 dives using open circuit.
The course includes 6 manuals & quizzes covering: Equipment, Physics, Physiology, Management, Confined Water, and Open Water Divers.
Training is delivered through a structured progression, blending online theory, confined skills, and deep-diving execution.
The theoretical study portion is completed at your own pace via RAID's sophisticated online learning platform, allowing you to absorb critical information before the practical sessions.
Your sessions begin in controlled water, allowing your instructor to introduce new, complex skills incrementally. You will practice perfect trim, buoyancy, propulsion techniques, and drill skills until they become automatic.
Once your comfort and mastery are confirmed, your instructor will complete the necessary open water certification dives. These confirm your capability to apply what you learned in a realistic extended-range environment.
Instant access to your online learning, course preparation modules. Begin training immediately.

Max Depth: 40 meters (130 feet)
Deco Limits: Maximum of 10 minutes of planned decompression.
Gases: You will certify to use air, nitrox, and oxygen.
Optional: Trimix option available, limited to a maximum END/EAD of 30 meters.
Hose Configuration: Must fit a 2 meter (7-foot) primary regulator hose.
Bailout Gas: Bailout gas must be safe to breathe at the maximum depth (MOD).
Gas Switching: Use a multi-gas computer if bailout gas differs from the primary gas.
PO2 Limits: Max PO2 for back gas is 1.4 max PO2 for no-stop extension is 1.6.
Your training will be conducted by Stuart Girdler, a highly experienced RAID Instructor Trainer with a commitment to instilling genuine competence and a deep understanding of the technical discipline. By training with Stuart, you receive personalized guidance on every element:
He will help you configure your personal diving equipment and introduce the specialized tools for technical diving.
He ensures your planning procedures for deep diving are robust and adaptable.
Stuart’s commitment is not just to issue a card but to instil genuine competence.

RAID OC & CCR Trainer & Examiner
Multi-unit qualified instructor
Focused 3:1 maximum student ratio
Deep technical experience
Passionate dive-leadership
Over 30 years of diving experience
You’re now ready to begin your journey into silent, efficient rebreather diving.
This course certifies you to conduct no-decompression CCR dives to 40 metres (130 feet) using your specific CCR model. Once completed, your natural progression is the RAID CCR Decompression Diver program.
Ready to begin your unit-specific training?
Instant access to your online learning, course preparation modules. Begin training immediately.
RAID OC Tec courses focus on advanced open-circuit diving skills, including gas planning, decompression, and deep diving techniques for extended range exploration.
RAID CCR Tec training introduces divers to closed-circuit rebreathers, offering precision, efficiency, and longer dive times through cutting-edge technology
This course teaches you how to safely transition from no-decompression CCR diving into planned, controlled decompression. It focuses on short, efficient decompression profiles using Air or Nitrox as the breathing gas, without the added complexity of Trimix.
Planned Decompression: Learn to safely manage mandatory decompression stops, significantly extending your bottom time at depth.
Optimal Efficiency: Train to conduct planned decompression dives up to 10 minutes of total obligation, making full use of your CCR’s gas efficiency and loop stability.
Unit-Specific Mastery: Receive precise, unit-specific instruction on bailout planning, decompression protocols, and safe oxygen exposure limits for decompression scenarios.
The RAID Deco Rebreather Diver course gives you the skills, confidence, and discipline required to conduct planned decompression CCR dives to 40 metres (130 feet) using Air or Nitrox. You’ll learn to plan and conduct decompression dives using your own unit, focusing on:
Loop PO₂ control and setpoint stability
Bailout readiness and gas switching
Decompression calculations and procedures
Real-world problem solving under direct supervision
Max Depth: 40 metres (130 feet)
Dive Type: Planned decompression
Gas Options: Air or Nitrox
Max Decompression Obligation: 10 minutes
Program Length: Online academics + minimum 8 in-water training sessions
Unit-Specific: Training completed on your exact CCR model

To enrol in the RAID Deco Rebreather Diver course, you must meet the following requirements:
Be a minimum of 18 years old.
Be certified as a RAID Deco 40 Diver or equivalent.
30 logged open water dives with 25 hours underwater
Have logged at least 5 dives to 30 meters.
Your journey into silent exploration is guided by Stuart Girdler, a highly experienced RAID Instructor Trainer and Examiner who is certified to teach on multiple rebreather units. Stuart's approach ensures that the rigorous standards of the RAID Rebreather Diver (CCR Diver 40M) course are applied not just by the book, but with real-world technical expertise.
Your training follows a structured three-stage progression:
The study portion of the course is completed via RAID's online learning platform. The comprehensive manuals are packed with a wealth of information that exceeds what can be achieved through traditional lectures.
A minimum of one dive lasting at least 60 minutes (max depth 5m/15ft) to develop your in-water skills. Your instructor will introduce new, complex skills incrementally to allow you to learn and develop at your pace.
A minimum of 6 open water dives (360 minutes total), with at least two dives conducted to a depth of 27m / 90ft or deeper. These dives confirm your capability to apply your knowledge in a real-world setting.

Program Type: No Decompression only
Max Depth: 40 meters (130 feet)
Loop PO2 (Setpoint): Maximum planned PO2 shall not exceed 1.3 bar
Gases: Air & Nitrox
Skill Focus: General CCR skills and Unit-Specific protocols.
Certification: Valid for diving and maintaining a specific CCR unit type.
Unit Used: Training conducted on your own CCR model
Supervision Ratio: Maximum 3:1 student-to-instructor
Your CCR training is personally delivered by Stuart Girdler, a RAID CCR Trainer & Examiner with extensive multi-unit experience.
Stuart’s teaching philosophy prioritizes unit-specific competence, bailout mastery, and real-world preparedness, ensuring you leave this course confident, capable, and ready to dive safely within the full 40M limits of your rebreather.
Unit-Specific Competence: Stuart ensures you master the specific configuration and protocols of your rebreather unit, which is mandatory for certification.
Bailout Preparedness: Training requires carrying one bailout cylinder with sufficient capacity for a safe bailout from max depth based on a conservative 50 litre / 2 cubic feet per minute SAC rate.
Focused Supervision: Training is conducted under direct supervision with a strict maximum ratio of 3 students per Instructor, maximizing safety and learning efficiency.

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