Independent course guide · References checked 30 September 2026. Confirm current standards and your eligibility with an authorised instructor.
Where this course fits
An appropriate advanced recreational qualification and logged experience are required. Confirm the current entry standard and any combined-course prerequisites.
Arrive with reliable buoyancy and equipment familiarity; ask how failure scenarios and remediation are taught.
TDI Decompression Procedures Diver: learning scope
Entry & preparation
An appropriate advanced recreational qualification and logged experience are required. Confirm the current entry standard and any combined-course prerequisites.
What you study
Develop the planning and practical skills for staged decompression within the qualification’s limits.
- Staged-decompression planning
- Equipment and contingency management
- Controlled execution and team procedures
Qualification boundary
The qualification has defined depth, gas and environment boundaries. It is not unrestricted technical diving.
A visual summary of this independent course guide. Confirm current prerequisites and standards with the agency and instructor.
What the training focuses on
| Learning area | Discuss before booking |
|---|---|
| Staged-decompression planning | How will this be taught and assessed? |
| Equipment and contingency management | What preparation and equipment should I bring? |
| Controlled execution and team procedures | What happens if I need more practice? |
Understand the qualification’s scope
The qualification has defined depth, gas and environment boundaries. It is not unrestricted technical diving.
Frequently asked questions
Does my dive computer replace this training?
No. It cannot provide the gas, control, teamwork or contingency skills.
Can it be combined with Advanced Nitrox?
It is commonly offered in combination, subject to meeting and completing both sets of requirements.
Does it qualify me for caves?
No. Overhead training is a separate branch.
What should an Australian course quote include?
Ask for an itemised total covering learning materials, practical sessions, certification, equipment, boat or site fees and any extra training. Availability, duration and prices are centre-specific.
Where do I confirm the latest prerequisites?
Use the official TDI information linked below and ask the authorised instructor to check your certification, age, experience, medical and first-aid records. A similar course name from another agency is not automatic equivalence.
Official course information
TDI: Decompression Procedures Diver ↗Agency standards determine certification requirements. This guide does not reproduce the full standard or imply agency endorsement.
Related next steps
Check prerequisites and readiness before choosing another course.