Education Commission of the States researched Statewide Longitudinal Data Systems (SLDS) policies in all states, the District of Columbia and Puerto Rico to provide this comprehensive resource. Over the course of six rounds of funding, the National Center for Education Statistics awarded SLDS Grants to 47 states, the District of Columbia and Puerto Rico to support projects related to data use. This resource indicates if each state received a federal SLDS grant, the years of the grant, and how much funding the state received for each grant year.