OBJECTIVES/GOALS: Supervision is a promising strategy for supporting high-fidelity implementation of evidence-based practices (EBPs) in substance use disorder (SUD) settings. In this study, we explore current supervision practices in community SUD programs and identify organizational and environmental factors that shape them. METHODS/STUDY POPULATION: We interviewed 25 leaders and counselors at 8 community SUD programs in Arkansas, and 16 leaders at external stakeholder organizations (e.g., regulators, payers, licensing boards). Interview guides were based on the i-PARIHS framework. Interviews were conducted on Zoom or phone, lasted ~1 hour, and were recorded and transcribed. Below we outline findings based on preliminary analyses; full thematic analyses will be completed before presentation. RESULTS/ANTICIPATED RESULTS: Participants generally recognized the importance of utilizing EBPs and supporting their use through supervision. Counselors professional backgrounds and training vary substantially, necessitating continuing education and supervision. However, different professional, licensing and regulatory standards create a complex web of requirements and practices. Supervisors typically require clinical experience, but are rarely trained in supervision. They are internal or external to the organization, and provide individual or group supervision. Supervisors most often rely on case summaries and chart reviews, sometimes on direct observations and role-playing, and rarely (one program) on session recordings. Supervision goals are broad, and while EBP use is encouraged, it is rarely the focus of supervision. DISCUSSION/SIGNIFICANCE: To enhance supervision in community SUD settings and improve implementation of EBPs, new supervision strategies need to fit the various norms, expectations, and standards (e.g., professional, regulatory) that characterize community SUD programs, their workforce, and their environments.