The primary goal of the Center for Early Care and Education Research: Dual Language Learners is to advance the research field to improve assessment, child care, and education for dual language learners (DLLs) from birth through five years of age. This new center pursues a focused agenda of research and national leadership activities that: (1) improve the state of knowledge and measurement in early childhood research on young DLLs and the needs of their families as these relate to children's development; and (2) identify and advance the evidence base for the best practices and strategies in early care and education programming to support the overall development of young DLLs and to effectively support their families. Settings to be considered include early care and education center-based programs, home-based and family child care providers, and Head Start and Early Head Start programs. The Center is jointly funded by the Child Care Bureau (CCB) and the Office of Head Start (OHS). As such, the research team is expected to be responsive to calls from OHS and CCB for research-based guidance and syntheses of research regarding DLLs to address questions of pressing concern to policy and practice. Programmatic concerns to be addressed by research center: ACF is concerned with promoting all children's early development in child care settings and early education programs. The substantial and growing population of DLLs, with its unique and varied issues, introduces new challenges and opportunities to early childhood programs across the country as policymakers and practitioners find they must adjust and adapt their efforts in order to serve this population. The program announcement highlighted several specific programmatic concerns that the Center should address in its work.