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Air Diluent CCR Decompression Procedures in the United States: 24 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 4 publish course prices.
TecDiveTools lists 24 dive centres teaching Air Diluent CCR Decompression Procedures in the United States. 4 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). 18 of these 24 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, 13 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
Extends closed-circuit rebreather diving into staged decompression on air/nitrox diluent to 40m/130ft maximum depth. Teaches decompression gas planning, bailout procedures with mandatory decompression obligations, and risk management when ascent is no longer immediate. Second rung on TDI's CCR progression ladder.
Minimum 7 dives with 420 minutes accumulated bottom time, maximum 40m/130ft depth. Pre-dive: staged decompression planning with bailout gas calculations. In-water skills: CCR operation in decompression, mandatory stop execution, bailout procedures with decompression obligation, emergency gas switching. Competency on unit-specific decompression procedures.
24 dive centres on TecDiveTools teach TDI Air Diluent CCR Decompression Procedures in the United States: North Florida Cave Country (11), Southeast Florida (8), Florida West Coast (Tampa Bay) (4) and Florida Keys (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.
Every centre in the TecDiveTools directory that publishes a price for TDI Air Diluent CCR Decompression Procedures in the United States charges by the day rather than for the whole course. Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
5 days, based on the durations 1 centre publishes for it in the United States. The time depends on the centre's schedule, weather, and how quickly the required skills are demonstrated — agencies set a minimum number of dives, not a fixed number of days.
The centres listed above teach TDI Air Diluent CCR Decompression Procedures 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.
At the same tier in TecDiveTools' cross-agency comparison, dive centres in the United States also teach IANTD CCR Advanced EANx Diver (7). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.