This unit describes the performance outcomes, skills and knowledge required to assist people with complex communication needs to communicate through effective use of Augmentative and Alternative Communication (AAC) strategies and devices. It does not include matching AAC systems to the person’s needs, as this is carried out by an allied health professional as part of the development of an individualised plan.AAC refers to methods that replace or supplement speech to address the needs of people whose oral speech skills limit their ability to meet their participation and communication needs.AAC systems comprise communication aids, symbols, strategies, devices, tools and techniques and methods that may be aided or unaided.This unit applies to disability support work in a variety of contexts. Work performed requires a range of well developed, person-centred skills where some discretion and judgement is required and workers will take responsibility for their own outputs.The skills in this unit must be applied in accordance with Commonwealth and State/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.