A technical diver handling decompression stage cylinders during a dive

Photo by Teemu Virtanen · CC BY-SA 3.0

Tec Trimix Instructor

Official course standards ↗Last updated September 7, 2026

Teach trimix diving to technical divers seeking mastery of complex gas blending and deep-dive procedures at the extreme technical level. As a Tec Trimix Instructor, you'll develop comprehensive teaching skills for trimix gas physics, complex decompression procedures with multiple gases, advanced narcosis management, and training-dive supervision in the most demanding technical environments. This qualification enables you to guide students through trimix fundamentals and prepare them for deep technical diving, including deep wreck penetration and extended cave exploration. It's a respected certification that few instructors achieve.

Prerequisites

PADI Master Scuba Diver Trainer, PADI Tec Deep Instructor, PADI Tec Trimix Diver, 200 logged dives (20+ tec decompression dives with 10+ deeper than 40m on trimix). For certification: 350 logged dives (50+ decompression dives deeper than 40m with 30+ on trimix deeper than 40m and 10+ on trimix deeper than 50m with less than 21% O2), assisted with at least one Tec Trimix Diver course

Standards

What a diver must demonstrate to pass this course — not always published by the certifying agency.

Teach Tec Trimix 65 and Tec Trimix Diver courses; conduct deep trimix dives to 90m; supervise complex multi-gas decompression procedures; ensure student competency in extreme technical environments

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 PADI TecRec Tec Trimix Instructor

What are the prerequisites for PADI TecRec Tec Trimix Instructor?

PADI TecRec's standards require: PADI Master Scuba Diver Trainer, PADI Tec Deep Instructor, PADI Tec Trimix Diver, 200 logged dives (20+ tec decompression dives with 10+ deeper than 40m on trimix). For certification: 350 logged dives (50+ decompression dives deeper than 40m with 30+ on trimix deeper than 40m and 10+ on trimix deeper than 50m with less than 21% O2), assisted with at least one Tec Trimix Diver course.

How many dives do I need before starting PADI TecRec Tec Trimix Instructor?

PADI TecRec's standards state: 200 logged dives (20+ tec decompression dives with 10+ deeper than 40m on trimix).

What does PADI TecRec Tec Trimix Instructor training involve?

According to PADI TecRec's published standards: Teach Tec Trimix 65 and Tec Trimix Diver courses; conduct deep trimix dives to 90m; supervise complex multi-gas decompression procedures; ensure student competency in extreme technical environments.

Where can I take PADI TecRec Tec Trimix Instructor?

2 dive centres and 2 instructors in the TecDiveTools directory teach PADI TecRec Tec Trimix Instructor, in Indonesia and Thailand. Each is listed further up this page.