Cavern Diving Instructor Trainer

Must be an active status Extended Range Instructor Trainer.
Be a Cavern Diving Instructor.
Be a Cave Diving Instructor.
Be a Full Cave Diver.
Have logged at least 250 dives, including a minimum 50 cavern or cave dives.
Have issued a minimum of ten (10) Cavern Diver certifications.
Provide their own Extended Range Nitrox Total Diving System.