With funding from Colorado’s PDG B-5 Initiative, the National P-3 Center partnered with Colorado’s Office of Early Childhood and Department of Education to produce a system-focused roadmap to guide transitions to kindergarten. Different from many “transition to K resources,” this report does not provide specific strategies to be enacted by teachers but, instead, provides strategies for state agencies, school districts, early care and education (ECE) programs, and other state- and community-level organizations to enact. By focusing on organizational and system strategies, the report is intended to influence children’s and families’ experiences at scale.