The ASAM Criteria is the most widely used set of evidence-based guidelines for patient placement, continued stay, and transfer of patients with addictive, substance-related, and co-occurring conditions. By rooting substance use disorder (SUD) services in a common framework such as The ASAM Criteria, states can ensure that everyone is “speaking the same language” when it comes to SUD prevention and treatment. This toolkit offers high-level strategies for integrating The ASAM Criteria into a state’s approach to SUD services.