The Substance Abuse and Mental Health Services Administration (SAMHSA) is the agency within the U.S. Department of Health and Human Services (HHS) that leads public health efforts to advance the behavioral health of the nation and to improve the lives of individuals living with mental and substance use disorders, and their families. SAMHSA provides leadership and resources – programs, policies, information and data, funding, and personnel – to advance mental and substance use disorder prevention, treatment, and recovery services in order to improve individual, community, and public health.