This unit describes the performance outcomes, skills and knowledge required to complete complex water rescues in indoor or outdoor, built or natural swimming venues. It requires the ability to assess rescue situations, determine appropriate rescue actions, and use a range of equipment and techniques to provide prompt and effective rescue responses.Complex situations may involve multiple persons in difficulty, persons suffering a medical event in the water, injured persons, dealing with numerous hazards, or a combination of many factors. Complex rescues typically involve multiple team members working together.This unit applies to any type of sport, fitness, aquatic or recreation organisation including commercial, not-for-profit, community and government organisations.It has particular application to pool lifeguards but can apply to other workers, including outdoor recreation leaders, who complete complex water rescues. Rescuers use discretion and judgement to manage significant problems when they arise, guided by established organisational rescue procedures.White water and surf rescues are covered in outdoor recreation units coded SISORSC.The skills in this unit must be applied in accordance with Commonwealth and State or Territory legislation, Australian standards and industry codes of practice.No occupational licensing, certification or specific legislative requirements apply to this unit at the time of publication.