Early care and education (ECE) workforce registries are data systems originally conceived to track the child care workforce's training, course work, and formal educational achievement. They were designed to provide states with an understanding of the training and education status and needs of this workforce. Furthermore, registries reflect the national child care policy landscape, holding a strong focus on quality improvement. Research on ECE registries suggests that aggregate registry data have the potential to address questions related to the focus of workforce training. Yet, registries are so much more, as the ongoing pandemic has made clear. Today registries assist state leaders, child care program administrators, and the workforce at-large in various respects, which are detailed below. (author abstract)