Two divers wearing closed circuit rebreathers entering the water
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CCR MOD 1

Last updated September 7, 2026

First level of closed-circuit rebreather certification, typically covering no-decompression diving on the unit: pre-dive checks, buoyancy and trim on a CCR, bailout procedures, and unit-specific failure response.

Instructors Teaching This Course

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 CCR MOD 1

Where can I take CCR MOD 1?

1 dive centre and 1 instructor in the TecDiveTools directory teach CCR MOD 1, in Mexico. Each is listed further up this page.

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