Through funding from the U.S. Department of Education’s Charter Schools Program (CSP), the Texas Education Agency (TEA) administered a subgrant competition designed to support the replication of high-quality charter school models throughout the State of Texas. This evaluation report assesses the effectiveness and impact of the CSP High-Quality Replication grant and identifies the mechanisms and potential promising practices exhibited by subgrantees in replicating high-quality charter campuses. The information in this report is designed to contribute to future programmatic decisions and to aid TEA in identifying and disseminating best or promising practices of successful, high-quality replication charter schools and campuses while contributing to the expansion of the number of high-quality charter schools in the state.