A technical diver handling decompression stage cylinders during a dive

Photo by Teemu Virtanen · CC BY-SA 3.0

OC TechTDI

Non-Diving Specialty Instructor

Official course standards ↗Last updated September 7, 2026

Instructor certification for teaching theoretical non-diving specialty courses—classroom-based technical topics delivered without in-water components. Trains instructors in course delivery methods for specialty knowledge instruction and instructor-level theory. Enables teaching of non-diving specialties (topics like equipment maintenance, gas blending theory, first aid) without requiring water-diving skills or demonstrations.

Prerequisites

Varies by specialty; generally requires relevant specialty certification and instructor qualifications; minimum age 18.

Standards

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

Instructor candidates must demonstrate mastery of course-specific subject matter, classroom delivery methods, assessment techniques, and TDI's standards for non-diving instruction. All training is classroom-based; no in-water evaluation required.

No instructors or dive centres found 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 TDI Non-Diving Specialty Instructor

What does TDI Non-Diving Specialty Instructor training involve?

According to TDI's published standards: Instructor candidates must demonstrate mastery of course-specific subject matter, classroom delivery methods, assessment techniques, and TDI's standards for non-diving instruction. All training is classroom-based; no in-water evaluation required.