This policy brief describes the State Early Childhood Comprehensive Systems (SECCS) Initiative, a policy designed to improve early childhood programs to ensure that all children arrive at school healthy and ready to learn. The SECCS is intended to help states build a bridge from birth to school and addresses how states will support children and families as they make the natural but challenging transitions in early childhood. Described herein are five SECCS service components: (1) Access to health insurance and a medical home; (2) Early care and education; (3) Mental health and socioemotional development; (4) Parenting education; and (5) Family support. The report also presents ten key engagement strategies can help SECCS grantees to "build bridges" for young children. States can use the principles and strategies presented in this report to advance their planning, reach out to new partners, build collaborative strategies, and implement an effective and sustainable early childhood service delivery system. [This brief has been adapted from the full report entitled "Building Bridges: A Comprehensive System for Healthy Development and School Readiness." This brief, and the full report, were produced by the National Center for Infant and Early Childhood Health Policy, which is a partnership of the UCLA Center for Healthier Children, Families and Communities; The Women's and Children's Health Policy Center of the Johns Hopkins Bloomberg School of Public Health; and the Association of Maternal and Child Health Programs.]