Helitrox Diver
This course is to provide the training and experience necessary to gain the knowledge and understand the hazards of
utilizing helium enriched EANx mixes of 20%-30% oxygen and no more than 35% helium for dives to a maximum depth of 52m (170 ft.) that require staged-decompression, utilizing EANx mixtures and/or oxygen during decompression.

Trimix I Diver
This course is to provide the diver with the skills and knowledge needed to minimize the risks of utilizing helium based trimix breathing gas mixes for dives to a maximum depth of 60m (200ft) requiring staged decompression and utilizing EANx mixtures and/or oxygen during decompression.

Wreck Penetration Diver
This course is to provide the diver with the skills and knowledge needed to gain experience and minimize risks in penetration wreck diving and utilizing Air, EANx or Trimix for dives to maximum of 46m (150 feet) that require staged decompression, utilizing EANx mixtures and/or oxygen during decompression.

Technical Support Leader
This course is designed to train knowledgeable NAUI Instructors, Divemasters, and Assistant Instructors who are also technical divers to act as part of a support team for technical diving, training activities and guiding technical dives that are not in a physical overhead environment and only to the level to which the TSL is certified. A NAUI Technical Support Leader (TSL) is qualified to provide assistance to teams of technical divers, assist during training or post certification diving activities, and guide technical dives provided diving conditions and methods approximate those in which the TSL was trained. These duties may possibly include shuttling of equipment, removal and replacement of staged decompression gases and equipment, rigging and setting up of decompression stations and gases, monitoring divers during ascent and staged decompression stops, and assisting with emergency evacuation. An active-status NAUI TSL is qualified to assist an active-status NAUI Technical Instructor in technical diving instruction.