Oklahoma County Diversion Hub offers justice navigation and case management and co-locates resources such as housing assistance and substance use treatment on site through its community partners. Substance Abuse and Mental Health Services Administration (SAMHSA) solicited applications from jurisdictions interested in Sequential Intercept Model (SIM) mapping workshops, and Diversion Hub applied, resulting in Oklahoma County being awarded one of these workshops. SIM mapping workshops bring together key local criminal justice, behavioral health, and community stakeholders to identify existing resources for responding to the needs of adults with mental health conditions and often co-occurring substance use disorders who are involved or at risk for involvement in the criminal justice system, as well as gaps in services and opportunities for cross-system collaboration and partnership.