This resource document highlights the critical role of high-quality data in behavioral healthcare, addressing challenges in consistency and relevance within SAMHSA’s SUPTRS BG program. It provides strategies, best practices, and a self-assessment tool to help states improve data collection and reporting, ensuring accuracy, completeness, and relevance. These improvements support better resource allocation, care quality, policymaking, and identification of gaps in services. This resource provides guidance in enhancing the quality of data collection in substance use disorder treatment programs globally, an important interest of stakeholders.