A Normoxic Trimix Instructor or higher may teach this course. To teach Rebreather Normoxic Trimix, the Instructor must be an IANTD Normoxic Trimix Rebreather Instructor or higher. The instructor may teach only the category Rebreather CCR, SCR, or PSCR their Normoxic Rebreather Instructor qualification is on. Once qualified as a Rebreather Normoxic Instructor the instructor may use any rebreather they are at least diver-qualified on to teach Normoxic Rebreather Diver programs.
For example: A Rebreather Normoxic Trimix Instructor who trained as a Rebreather Normoxic Trimix Instructor on a CCR Evolution may teach a Normoxic Trimix Diver-level course while using any other CCR that the instructor is, at minimum, a qualified diver on. The Rebreather Normoxic Trimix Instructor may teach students on all Rebreathers the Instructor is diver-qualified on, provided they are Rebreather Normoxic Trimix Instructor in that category; CCR, SCR, PSCR.