A successful transition to adult society requires attention to four major goals: (a) have a safe and supportive place to live; (b) participate in meaningful activities; (c) maintain access to needed services; and (d) develop friendships and intimate relationships. For young adults with complex communication needs (CCN), access to augmentative and alternative communication (AAC) plays a critical role in the achievement of these valued outcomes. This article discusses what is known about the use of AAC to support communication by young adults with CCN, and identifies areas for future research and development in AAC technology.