| Technical Diving Certifications | |
|---|---|
| Open Circuit Courses | Pre-requisite |
| Advanced Nitrox | Nitrox Diver (or equivalent) |
| Decompression Procedures | Advanced Nitrox |
| Extended Range | Decompression Procedures |
| Trimix Diver | Advanced Nitrox |
| Advanced Trimix Diver | Trimix Diver |
| Rebreather Course | Pre-requisite |
| Semi-Closed Rebreather Diver | Nitrox Diver (or equivalent) |