Based on feedback from non-research site staff, the OPT-IN Project implementation package was tailored for optimal delivery in the site setting. The translation strategy will be evaluated using the RE-AIM framework, which includes Reach (e.g., number of individuals receiving intervention), Effectiveness (e.g., patient/client outcomes), Adoption (e.g., numbers trained), Implementation (e.g., fidelity of intervention delivery) and Maintenance (e.g., sustained in routine practice over time) with mixed qualitative and quantitative methods with intervention recipients.