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Introduction

This course examines the theory, methods and procedures of planned stage decompression diving. This program is designed as a stand-alone course or it may be taught in conjunction with such TDI courses as Advanced Nitrox, Advanced Wreck, or Extended Range.

Course Objectives

The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of 45m / 150ft unless taught in conjunction with the Extended Range Course. The most common equipment requirements, gear set-up, and decompression techniques are presented. Students are permitted to utilize Enriched Air Nitrox mixes or oxygen for decompression provided the gas mix is within their current certification level.

Qualifications of Graduates

Upon successful completion of this course, graduates may engage in decompression diving activities without direct supervision so long as:

• The diving activities approximate those of training
• The area of activities approximate those of training
• Environmental conditions approximate those of training

Upon successful completion of this course, graduates are qualified to enroll in:

• TDI Advanced Nitrox Course
• TDI Extended Range Course
• TDI Advanced Wreck Course
• TDI Entry Level Trimix

Student Pre-Requisites

• Minimum age 18
• Minimum certification of TDI Advanced Nitrox Diver or equivalent
• Minimum of 25 open water dives, or the equivalent at the discretion of the instructor, in the environment in which the course is being presented

Graduation Requirements

In order to complete this course, students must

• Satisfactorily complete the TDI Decompression Procedures Course written examination
• Complete all open water requirements safely and efficiently
• Demonstrate mature, sound judgment concerning dive planning and execution