The Office of Early Childhood Development within the Administration for Children and Families at the Department of Health and Human Services will be soliciting applications from eligible states and territories to carry out the Planning Grant activities of the Preschool Development Grant Birth through Five (PDG B-5) program. These PDG B-5 awards will support states and territories to build systems that strengthen early care and education (ECE) programs and increase parent access within a mixed delivery system based on a comprehensive, statewide birth to five needs assessment and strategic plan. Funding with be targeted to maximize parent choice and knowledge of the early care and education (ECE) mixed delivery system; support sharing of best practices among ECE provider to improve collaboration and efficiency of programs; and improve the quality of ECE programs.