This unit describes the performance outcomes, skills and knowledge required to plan and complete recreational SCUBA dives using Enriched Air Nitrox (EANx). It also requires the ability to assemble and dissemble equipment and to complete basic maintenance at the water’s edge.EANx diving can be completed using dives tables but contemporary diving is usually completed using computerised equipment, and this is a requirement for this unit.It applies to dive leaders, usually known as divemasters, or instructors and to assistant instructors who use these skills when leading participants in SCUBA diving activities. Leadership skills are provided in complementary units.This unit applies to any type of organisation that delivers SCUBA diving activities and dive instruction including commercial, not-for-profit and government organisations.In order to procure gas mixes, enriched air equipment, and other services to engage in recreational Enriched Air Nitrox diving without supervision, divers must hold certification (C-Card) issued by an industry authorised organisation. That industry certification may or may not be issued concurrently with an Australian Qualification Framework (AQF) qualification or Statement of Attainment identifying achievement of competency in this unit. C-Card certification would be required to gain employment as a divemaster or instructor. Those delivering training and assessment to support this unit should consult the relevant industry bodies to determine any partnership arrangements for courses, trainers and assessors that can lead to joint AQF and industry regulated C-Card certification.