Waterford supports states and districts as they implement ESSA, sharing an evidence base that meets even the highest standards of ESSA’s four tiers of evidence. As a nonprofit research organization, Waterford Research Institute, LLC, has always grown innovation from the fertile soil of evidence-based efficacy research. As such, Waterford resources and blended learning designs meet the highest standards of evidence-based frameworks, including the What Works Clearinghouse and the four-tiered evidence model outlined in the Every Child Succeeds Act (ESSA). In fact, the Waterford Early Reading Program (part of Waterford Reading Academy) is one of the few digital programs for early literacy with study results that meet What Works Clearinghouse evidence standards and shows positive or potentially positive findings. This document provides a summary table of research studies aligning to each ESSA evidence tier. Waterford supports states and districts as they implement ESSA and harness the power of personalized learning and data transparency to close the achievement gap for their youngest and most vulnerable learners. (author abstract)