CCR Expedition Trimix Diver
This elite expedition-level certification qualifies exceptionally experienced rebreather divers to conduct the deepest technical dives on closed-circuit rebreathers, reaching depths to 400 fsw (120 msw). It requires mastery of extreme hyperbaric narcosis management, extended multi-stage decompression, and expedition-level planning for world-class technical diving projects.
Prerequisites
IANTD Rebreather Trimix Diver + 300 total logged dives + 200 hours rebreather time + 75 non-training CCR Trimix dives with 50 hours on specific rebreather unit, minimum 21 years old.
Standards
What a diver must demonstrate to pass this course — not always published by the certifying agency.
Demonstrate mastery of hyperbaric narcosis management at extreme depth, extended stage management, multi-depth hypoxic and normoxic loop strategies, and expedition planning for deep technical projects.
Instructors Teaching This Course
United States
Mexico
Dive Centres Offering This Course
We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.
Common questions about IANTD CCR Expedition Trimix Diver
What are the prerequisites for IANTD CCR Expedition Trimix Diver?
IANTD's standards require: IANTD Rebreather Trimix Diver + 300 total logged dives + 200 hours rebreather time + 75 non-training CCR Trimix dives with 50 hours on specific rebreather unit, minimum 21 years old.
What is the minimum age for IANTD CCR Expedition Trimix Diver?
IANTD's standards state: Minimum 21 years old.
How many dives do I need before starting IANTD CCR Expedition Trimix Diver?
IANTD's standards state: IANTD Rebreather Trimix Diver + 300 total logged dives + 200 hours rebreather time + 75 non-training CCR Trimix dives with 50 hours on specific rebreather unit.
What does IANTD CCR Expedition Trimix Diver training involve?
According to IANTD's published standards: Demonstrate mastery of hyperbaric narcosis management at extreme depth, extended stage management, multi-depth hypoxic and normoxic loop strategies, and expedition planning for deep technical projects.
Where can I take IANTD CCR Expedition Trimix Diver?
2 dive centres and 6 instructors in the TecDiveTools directory teach IANTD CCR Expedition Trimix Diver, in Thailand, the United States and Mexico. Each is listed further up this page.