Trauma and post-traumatic stress disproportionately burden orphaned children in low-resource settings, and mental health services are often unavailable. While scale-up of interventions through lay counselor delivery of evidence-based treatments is promising, there is very limited knowledge on sustaining interventions after they are implemented or equipping leaders with information about potential effectiveness in other communities. This project, “Sustaining and Generalizing Evidence-based Mental Health interventions for children (SAGE-MH)” innovatively expands an implementation effectiveness trial (BASIC) in western Kenya to examine strategies for continuation during sustainment and to assess generalizability to all orphaned children in Kenya.