This policy brief analyses the opportunities ESSA introduced for DLLs and the ECEC workforce. It begins by setting out key demographics of the DLL population, including its rapid growth and characteristics. The brief then discusses trends in the ECEC workforce and its capacity to meet the needs of DLLs and other children in ECEC settings. It maps the ESSA provisions intended to address these needs through support for ECEC workers. Finally, it highlights opportunities to support the recruitment, training, and ongoing development of a robust and culturally responsive workforce. (author abstract)