Children, youth, and families involved with child welfare often interact with other systems. The provision of quality behavioral health and wellness services require partnership and cooperation among these systems to ensure that services are coordinated and information is shared appropriately. This section provides guidance from the Children's Bureau encouraging States to coordinate across child welfare and other child-serving systems to improve well-being. It also provides resources related to enhancing partnerships and collaboration among child welfare, behavioral health, health-care, substance use, education, and other systems working with children, youth, and families.