SAMHSA
The Substance Abuse and Mental Health Services Administration (SAMHSA) is the agency within the U.S. Department of Health and Human Services that leads public health efforts to advance the behavioral health of the nation. SAMHSA provides leadership and devotes its resources, including programs, policies, information and data, contracts and grants, to help the United States act on the knowledge that behavioral Health is essential to health; prevention works; treatment is effective; people recover from mental and substance use disorders