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CCR Normoxic Trimix Diver in the United States: 6 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 2 publish course prices.
TecDiveTools lists 6 dive centres teaching CCR Normoxic Trimix Diver in the United States. 2 of them publish course prices, in the currency the shop advertises and with the date each was checked — not converted, and not estimated.
Listings are ordered by how much evidence exists about their technical diving, not by a star rating, with any paid Featured listing shown first and marked as such (how rankings work). 5 of these 6 carry reviews we have read and classified as being about technical or overhead training. The count excludes recreational certifications by name, so a busy resort does not outrank a one-instructor cave operation on the volume of its reef trips. Separately, 5 have at least one instructor whose reviews we have read and summarised — a dive centre carries no synthesis of its own. How we read and count reviews.
Looking for individual instructors instead? Instructors in United States.
About the course
This technical rebreather course teaches CCR-qualified divers to deploy normoxic trimix on closed-circuit rebreathers, maintaining constant oxygen partial pressure for optimal efficiency at technical depths. The course covers oxygen cell management, constant-PO2 loop operation, and stage management for technical dives between 130–200 fsw (39–60 msw), forming a foundation for full technical CCR progression.
Demonstrate mastery of oxygen cell management, constant-PO2 loop operation at technical depths, stage management for normoxic trimix transitions, and comprehensive emergency protocols.
The centres listed above teach IANTD CCR Normoxic Trimix Diver in United States. Requirements are set by the agency, not the centre, so they are the same wherever you train — what differs is price, class size and how much diving is included.
6 dive centres on TecDiveTools teach IANTD CCR Normoxic Trimix Diver in the United States: North Florida Cave Country (4), Florida West Coast (Tampa Bay) (1) and Southeast Florida (1). Each is listed above.
Rebreathers are common in Florida's cave community for long penetrations, and the springs' constant temperature and depth make them a practical place to build hours on a unit.
At the same tier in TecDiveTools' cross-agency comparison, dive centres in the United States also teach TDI Mixed Gas CCR (13). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.