This document is the Implementation Report for the REA2 Impact Study. The Reemployment and Eligibility Assessment (REA) grant program of the U.S. Department of Labor (DOL) supports states in providing assistance to Unemployment Insurance (UI) claimants to speed their return to work and shorten the length of time they are receiving UI benefits. Earlier studies showed that the REA program does shorten the duration of UI receipt (Benus et al. 2008;Michaelides et al. 2012; Poe-Yamagata et al. 2011). These studies, however, were not designed to determine which components of the REA program drive that claimant outcome. To help determine this, DOL contracted with Abt Global to conduct an impact study—Impact Evaluation of the Reemployment and Eligibility Assessment Program (REA2 Impact Study).