The BUILD Initiative (BUILD) and The Center on Enhancing Early Learning Outcomes (CEELO) support state policymakers with the implementation of early learning and development policies, programs, and practices that improve outcomes for all young children. Together they have engaged in a project to strengthen prominent policy that promotes effective early childhood teaching and learning for each and every child, from birth through third grade. This working paper has been used throughout the project to provide a springboard for ongoing dialogue and collaboration. It has been revised as lessons have been learned about the opportunities and challenges that state policymakers encounter when implementing early childhood policy. It is the authors' intention that the paper now be used as a tool to spark discussion and innovation, and will ultimately support policymakers and their partners in their ongoing efforts to provide young children with excellent early childhood education.