Technical diving has an exstensive list of equipment requirements that must be owned by the student during the training. The student's life depends upon this equipment so the practice or renting and borrowing equipment is not an option as in recreational diving. The following list covers all equipment needed for Technical Dive training.

• Double cylinders (minimum 12 L/70 cuft each, with larger preferred) with isolator manifold
• Primary and secondary regulators, one with seven foot hose (approx.) for gas sharing, and the other on a necklace to be worn as a backup.
• One SPG on each regulator system along with a low pressure inflator hose on each system.
• Stage/decompression cylinders with regulator, SPG, mounting hardware and proper labeling/markings. Two per diver will be required
• Backup decompression cylinders as appropriate and required for the environment
• Wing (BCD) and harness – redundant buoyancy control is required (double bladder BCD or dry suit if suitable for weight of equipment worn)
• Depth gauge/computer and backup depth gauge/computer
• Timing device and backup timing device
• Trimix decompression information (tables/trimix computer) and backup decompression information
• Exposure suit appropriate for environment and dive duration. (If students will use dry suits, they should be trained/experienced with their use in recreational and technical diving prior to using them for trimix training or diving.)
• Argon or Air dry suit inflation or other inflation system as needed (students should not inflate dry suit with trimix)
• Weight system
• Jon line (if needed for current diving environments)
• Inflatable signal tube
• Primary Reel and Backup Reel
• Two Lift bags (bright yellow or per local community practice preferred)
• Multiple knives/cutting devices
• Slate
• Backup mask
• Compass
• Lights
• Drift kit