Young children's development occurs along a continuum, with milestones reached at ages that vary within an accepted timeframe. Milestones not met within the expected timeframe can raise concerns about developmental delays, health conditions, or other factors contributing negatively to the child's growth and learning. Monitoring children's development in relation to this continuum through developmental screening, to identify delays, and to individualize approaches to development and learning, is an important part of providing high-quality child care and early education. Developmental screenings, which indicate whether a child is meeting expected developmental milestones or may have a developmental delay that requires further assessment, are part of a broader set of preventive health care practices recommended by experts, including the American Academy of Pediatrics (AAP). Early, regular, and reliable screening can help identify problems or potential problems that may threaten the child's developmental foundation and lead to additional delays and deficits later in childhood. Properly trained and supported professionals in early childhood settings can use information from screening to help inform practice, shape individual child interactions, and refer children and families for additional services. This paper looks at the degree to which children currently receive developmental screening, the role of child care and early education programs in connecting children to developmental screening, national efforts and funding streams to support developmental screening and its relationship to early childhood, and state policy examples and recommendations stakeholders can draw on when considering expanding access to developmental screening in early childhood settings.