Sidemount diver in a cave, showing both cylinders clipped along the body

Photo by Pete Nawrocky · CC BY-SA 3.0

SidemountTDI

TDI Sidemount Instructor Trainer

Official course standards ↗Last updated September 7, 2026

Sidemount Instructor Trainer develops instructors capable of teaching the TDI Sidemount Diver course and sidemount-specific technical training. Candidates must demonstrate advanced sidemount skills, equipment rigging expertise, and the ability to train divers across all required drills and emergency procedures for side-mounted cylinder diving.

Prerequisites

Certified TDI Sidemount Diver. Current TDI Open Water Diving Instructor or higher. Minimum 25+ logged dives in sidemount configuration. Approved by TDI Headquarters. Exact prerequisites vary by TDI region.

Standards

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

Instructors must demonstrate proficiency teaching: sidemount equipment configuration and rigging, independent valve gas management theory, emergency procedures (S-drills and variants), student rescue techniques, and all land and water drills required for TDI Sidemount Diver certification.

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 TDI Sidemount Instructor Trainer

What does TDI Sidemount Instructor Trainer training involve?

According to TDI's published standards: Instructors must demonstrate proficiency teaching: sidemount equipment configuration and rigging, independent valve gas management theory, emergency procedures (S-drills and variants), student rescue techniques, and all land and water drills required for TDI Sidemount Diver certification.

Where can I take TDI Sidemount Instructor Trainer?

52 dive centres and 73 instructors in the TecDiveTools directory teach TDI Sidemount Instructor Trainer across 6 countries, most in the Philippines, Mexico, Egypt and Thailand. Each is listed further up this page.