Purpose of the Review: We review the evidence-based POWR intervention which provides training to communication partners to support children with complex communication needs (CCN) by teaching steps to support child communication: Prepare the activity and AAC, Offer opportunities for communication, Wait for the child's communication, and Respond to child's communication. Recent Findings: POWR intervention studies show benefits for communication partners (increased communication opportunities, waiting, and responding) and the children with CCN (increased communication turns). Communication partners also found the POWR intervention to be socially valid. Summary: The POWR intervention is effective and future research is being conducted to further refine it (e.g., adding coaching support, addition of AAC modeling), adjust for other languages and cultures, and explore its use and effectiveness with various communication partners. [This is the online first version of an article published in "Current Developmental Disorders Reports."]