The Children's Bureau funded these projects to build capacity among State, local, or Tribal child welfare agencies and early childhood systems. The goal was to maximize the identification, enrollment, attendance, and supports of infants and young children, ages birth to 5 years, in foster care or under the supervision of child welfare services, into comprehensive, high-quality early care and education services. Communities built infrastructure to enhance their capacity to deliver multidisciplinary interventions to improve the socio-emotional and behavioral well-being of young children and their families through collaborative service delivery. (author abstract)