CCR Training Curriculum
Liberty CCR Training Levels
The Liberty CCR training program consists of several progressive levels designed to systematically build the diver’s knowledge, skills, and confidence for advanced and technical rebreather diving.
• CCR Mod 1 – Entry-level Liberty CCR course focused on safe operation using air or nitrox as diluent up to 40 m / 130 ft.
• CCR Mod 2 – Extends depth and gas management using normoxic trimix and multiple bailout gases up to 60 m / 200 ft.
• CCR Mod 3 – The highest level of Liberty CCR training, qualifying divers to conduct deep trimix dives beyond 100 m / 330 ft using hypoxic mixtures and multiple decompression gases.
• CCR Cave Diver – Application of Liberty CCR skills in overhead environments, focusing on gas planning, navigation, and emergency procedures in caves.
• CCR Liberty Crossover – Designed for certified CCR divers transitioning to the Divesoft Liberty unit. Covers unit configuration and assembly, full operation, and all safety procedures; certifies at Mod 1 level.
Note: All Liberty CCR courses offered by us are taught under the IANTD agency and its training standards and can be conducted in either backmount or sidemount configuration.
Liberty Mod 1
Introduction
The IANTD CCR Advanced EANx Diver or CCR Mod 1 program is designed to train competent divers in the safe use and operation of the Liberty Closed Circuit Rebreather unit in both backmount and sidemount configurations, using air and nitrox as diluent. This course provides the foundation for safe and efficient CCR diving, covering unit assembly and maintenance, pre-dive checks, loop management, buoyancy and trim control, emergency procedures, and team diving protocols.
What You Will Learn
• proper configuration and weighting for your Liberty CCR unit
• unit setup and pre-dive checks procedures using Divesoft App
• practical in-water skills to safely control buoyancy, loop volume, and PO₂ throughout the dive
• effective gas planning and bailout strategies
• emergency and failure management drills including manual control and system shutdowns
• decompression planning and execution within the limits of the CCR Mod 1 certification
• teamwork, situational awareness, and communication specific to CCR diving
• post-dive maintenance and long-term care of the Liberty CCR unit
Course Requirements
• minimum 18 years old
• IANTD Advanced Nitrox Diver or equivalent or higher certification
• IANTD Open Water Sidemount Diver or equivalent (only in case of sidemount CCR unit usage)
• 50+ logged open water dives
• good mental and physical fitness appropriate to the demands of this course
• valid DAN World insurance or equivalent
Minimun Course Duration
• 5 days
Minimun Dives Required
• 8 dives on CCR
Course Limits
• maximum 3 students per 1 instructor
• air/nitrox diluent
• maximum depth 40 meters (130 feet)
• only one bailout stage bottle may be carried
• PO₂ set point must not exceed 1,3 ATA
• bailout cylinder PO₂ may not exceed 1,6 ATA at the MOD
• decompression up to 15 minutes
Liberty Mod 2
Introduction
The IANTD CCR Normoxic Trimix Diver or CCR Mod 2 program is designed to train competent divers in the safe use and operation of the Liberty CCR, using air and trimix as diluent. This course builds upon the knowledge and skills gained in the CCR Advanced EANx (Mod 1) program and extends the diver’s depth and gas management capabilities. Divers learn to plan and conduct deeper dives with normoxic trimix, perform decompression using multiple bailout gases, and manage complex dive profiles in a safe and efficient manner.
What You Will Learn
• configuration and setup of your Liberty CCR unit for advanced trimix diving
• proper use of normoxic trimix as diluent and bailout gases
• advanced PO₂ management and manual control techniques
• extended-range dive planning and decompression management
• bailout planning and execution with multiple stage/deco cylinders
• dealing with failures under increased depth and task loading
• teamwork, communication, and situational awareness in deeper CCR dives
• post-dive data evaluation and maintenance for mixed gas operations
Course Requirements
• minimum 18 years old
• IANTD CCR Advanced EANx Diver (CCR Mod 1) or equivalent
• 50+ hours on Liberty CCR
• good mental and physical fitness appropriate to the demands of this course
• valid DAN World insurance or equivalent
Minimun Course Duration
• 5 days
Minimun Dives Required
• 8 dives on CCR
Course Limits
• maximum 3 students per 1 instructor
• air and normoxic trimix diluent
• maximum depth 60 meters (200 feet)
• two bailout stage bottles may be carried
• PO₂ set point must not exceed 1,2 ATA
• bailout cylinders PO₂ may not exceed 1,6 ATA at the MOD
• decompression up to 30 minutes
CCR Cave Upgrade
Introduction
The IANTD CCR Cave Diver Upgrade program is designed for already certified cave divers on open circuit with a minimum of Full Cave Diver certification who wish to transition to the safe use of the Closed Circuit Rebreather in the overhead environment. The course focuses on applying CCR techniques to cave diving, emphasizing safety, awareness, and efficient team procedures. Divers will develop the skills to plan and conduct CCR cave dives, manage the loop and buoyancy in confined spaces, plan sufficient bailout gas reserves for safe exits, and respond effectively to emergencies and failures while maintaining precise navigation and communication throughout the dive.
What Will You Learn
• configuration and setup of your CCR unit for cave diving
• planning and conducting CCR dives in overhead environments with sufficient gas reserves
• effective control of loop volume, buoyancy, trim, and PO₂ in confined areas
• emergency procedures on CCR including zero visibility, lost line, lost diver, and gas-sharing scenarios
• team diving protocols, communication, and good situational awareness
• unconscious diver lift techniques
Course Requirements
• minimum 18 years old
• IANTD Cave Diver or equivalent or higher certification
• IANTD CCR Advanced EANx Diver (CCR Mod 1) or equivalent or higher certification
• 50+ hours on the CCR unit to be used
• good mental and physical fitness appropriate to the demands of this course
• valid DAN World insurance or equivalent
Minimun Course Duration
• 3 days
Minimun Dives Required
• 3 cave dives on CCR
Course Limits
• maximum 3 students per 1 instructor
• air/nitrox diluent
• maximum depth 40 meters (130 feet)
• one bailout and one decompression cylinder may be carried
• PO₂ set point must not exceed 1,3 ATA
• bailout cylinder PO₂ may not exceed 1,6 ATA at the MOD
• 1/3 of oxygen, diluent and/or scrubber for cave penetration; must stay within the bailout exit capacity
• minimum 6 meters (20 feet) of visibility to enter a cave
• complex navigation (jumps/gaps, intersection [ T ], traverses, circuits) and restrictions are allowed
• restrictions during the class: no scooter diving, no exploration, no photo/video dives, no solo diving
CCR Liberty Crossover
Introduction
The IANTD CCR Liberty Crossover is intended for already certified closed-circuit rebreather (CCR) divers who wish to extend their qualification to include the Liberty CCR unit. The program provides complete training in the Divesoft Liberty system, including configuration, use of the Divesoft App software, maintenance, and emergency procedures. The goal of the course is to teach divers to safely and efficiently operate all functions of the Liberty CCR, plan dives, and properly manage the system in either backmount or sidemount configuration.
The crossover represents training up to the Mod 1 (Advanced EANx Diver) level. Upon successful completion, the diver receives a CCR Liberty Mod 1 certification, even if holding a higher qualification (such as Mod 2 or Mod 3) on another CCR unit. After completion of this crossover, divers are authorized to use the Liberty CCR for all types of dives corresponding to their existing CCR certification levels — including Mod 2 and Mod 3 dives, provided they already hold those qualifications on a different rebreather system.
What Will You Learn
• full configuration and setup of the Liberty CCR unit
• understanding the Liberty CCR system architecture and safety features
• correct assembly, pre-dive checks, and preparation procedures
• effective control of loop volume, buoyancy, trim, and PO₂ during dives
• emergency procedures including manual control, bailout strategies, and failure management
• post-dive maintenance, cleaning, and long-term care of the Liberty CCR unit
• key differences between CCR systems and adaptation of diving habits to the Liberty CCR
• use of the Divesoft App
Course Requirements
• minimum 18 years old
• IANTD CCR Advanced EANx Diver (CCR Mod 1) or equivalent or higher certification
• 25+ hours on CCR
• good mental and physical fitness appropriate to the demands of this course
• valid DAN World insurance or equivalent
Minimun Course Duration
• 3 days
Minimun Dives Required
• 3 dives on Liberty CCR
Course Limits
• maximum 3 students per 1 instructor
• air/nitrox diluent
• maximum depth 40 meters (130 feet)
• only one bailout stage bottle may be carried
• PO₂ set point must not exceed 1,3 ATA
• bailout cylinder PO₂ may not exceed 1,6 ATA at the MOD
• decompression up to 15 minutes
