RESUMEN
The community plays an important role in the success of substance abuse prevention efforts. However, current funding structures and a focus on limited approaches to prevention delivery have created a large gap between what substance abuse prevention professionals practice and what the community at large knows about prevention. The concept of "community" has not always been well-defined in the field of prevention, and there are few mechanisms to engage grassroots community members in evidence-based substance abuse prevention. This article explains how Wandersman et al.'s (Am J Community Psychol 41:171-181, 2008) Interactive Systems Framework can be applied to grassroots prevention efforts. The authors describe a Community Prevention Support System that collaborates with the Professional Prevention Support System to promote the adoption of evidence-based substance abuse prevention practices at the grassroots, community level.