The Head Start Reauthorization Act of 2007 called for states to create Early Childhood Advisory Councils (ECACs), and such councils in 45 states and five territories received funding under the American Recovery and Reinvestment Act. This webinar, sponsored by the Statewide Longitudinal Data Systems (SLDS) Grant Program, focused on the role of ECACs and how these councils interface with the collection and publication of early childhood (EC) data. Rachel Demma from the National Governors Association (NGA) discussed state activities around data and how these efforts align with State ECACs, Elliot Regenstein of EducationCounsel LLC talked about some of Illinois's Early Childhood Data Projects and their work with their State ECAC, and Debra Andersen of Smart Start Oklahoma discussed her state's progress in incorporating health data into its EC data efforts. (author abstract)