Community-based Mental Health and Substance Use Service Providers. The Department of Behavioral Health ensures that high quality mental health services are available to District residents through a rigorous certification program conducted by the Office of Accountability. DBH certifies a provider to deliver services that support individual recovery with qualified, culturally competent staff in a safe facility. A provider also must comply with local and federal rules and regulations. Only a certified provider is eligible to participate in the District's public behavioral health system. Services include diagnostic assessment, medication, counseling and community support.