The new frontier for prevention research involves building a scientific knowledge base on how to disseminate and implement effective prevention programs with fidelity. Toward this end, a brief overview of findings from the Blueprints for Violence Prevention-Replication Initiative is presented, identifying factors that enhance or impede a successful implementation of these programs. Findings are organized around five implementation tasks: site selection, training, technical assistance, fidelity, and sustainability. Overall, careful attention to each of these tasks, together with an independent monitoring of fidelity, produced a successful implementation with high fidelity and sustainability. A discussion of how these findings inform the present local adaptation-fidelity debate follows.