The guide provides considerations and strategies for interdisciplinary teams, peer specialists, clinicians, registered nurses, behavioral health organizations, and policy makers in understanding, selecting, and implementing evidence-based interventions that support older adults with serious mental illness.

This manual introduces a concept of trauma and offers a framework for becoming a trauma-informed organization, system, or service sector. The manual provides a definition of trauma and a trauma-informed approach, and offers 6 key principles and 10 implementation domains.