The paper discusses the tension between fidelity and adaptation in prevention interventions, emphasizing the need for culturally informed and responsive programs. It highlights the importance of balancing fidelity—delivering interventions as designed—with adaptation—modifying programs to meet the needs of specific communities. A community-based participatory research approach is proposed to enhance program outcomes by involving communities in the planning and adaptation process. The paper argues that both fidelity and adaptation are essential in prevention program design and should be addressed through a planned, organized, and systematic approach. It suggests developing hybrid prevention programs that incorporate adaptation to improve program fit while maintaining fidelity and effectiveness. The introduction highlights the challenge of prevention science in serving communities, particularly communities of color, by emphasizing the need for culturally relevant programs. The paper discusses the importance of community participation in program design and the impact of cultural factors on program effectiveness. It also addresses the issue of program-community mismatch, noting that some model programs may not align with local needs and require adaptation. The paper concludes that culturally informed prevention programs are essential for effective intervention and community engagement.The paper discusses the tension between fidelity and adaptation in prevention interventions, emphasizing the need for culturally informed and responsive programs. It highlights the importance of balancing fidelity—delivering interventions as designed—with adaptation—modifying programs to meet the needs of specific communities. A community-based participatory research approach is proposed to enhance program outcomes by involving communities in the planning and adaptation process. The paper argues that both fidelity and adaptation are essential in prevention program design and should be addressed through a planned, organized, and systematic approach. It suggests developing hybrid prevention programs that incorporate adaptation to improve program fit while maintaining fidelity and effectiveness. The introduction highlights the challenge of prevention science in serving communities, particularly communities of color, by emphasizing the need for culturally relevant programs. The paper discusses the importance of community participation in program design and the impact of cultural factors on program effectiveness. It also addresses the issue of program-community mismatch, noting that some model programs may not align with local needs and require adaptation. The paper concludes that culturally informed prevention programs are essential for effective intervention and community engagement.