This technical brief gives an overview of critical ECD elements and existing evidence for program managers who are interested in implementing ECD programs, or incorporating ECD elements within existing programs to support OVC. The brief describes the three critical elements of ECD, summarizes key findings from program evaluations and literature on ECD, and answers commonly asked questions about developing ECD programs for OVC. It also includes examples of promising ECDá interventions that either target or offer relevant models for OVC programs, as well as references to useful resources for learning more about ECD for OVC.