The replication of proven social programs is a cost-effective and efficient way to achieve large-scale, positive social change. Yet there has been little guidance available about how to approach program replication and limited development of systems--at local, state or federal levels--to support replication efforts. "Laying a Solid Foundation: Strategies for Effective Program Replication" is a synthesis of Public/Private Ventures's (P/PV's) 30 years of experience designing, testing and replicating a variety of social programs. It was designed as a guide for policymakers, practitioners and philanthropists who are interested in a systematic approach to program replication. It clearly lays out the key structures that should be in place before wide-scale replication is considered, as well as the steps needed to ensure the replication's success. With details on when in a program's life to replicate, where the replication should take place, and the staff resources needed, "Laying a Solid Foundation" can help capitalize on proven programs' successes. (Contains 7 endnotes.) ["Laying a Solid Foundation: Strategies for Effective Program Replication" was written with Becca Raley.]