This 90-minute virtual webinar introduces participants to core concepts and practical tools for addressing unhealthy alcohol, opioid, and drug use in their service settings. Designed for Community Health Workers and other professionals in primary care and other health and mental health settings, the session will blend foundational knowledge with real-world applications. Participants will explore the spectrum of substance use, setting specific screening tools, and evidence-based prevention and intervention strategies. The webinar also addresses stigma, systemic gaps, and opportunities for improving care.