Definition of SAMHSA

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SAMHSA: The Substance Abuse and Mental Health Services Administration, a part of the U.S. Public Health Service, that works to improve the quality and availability of substance abuse prevention, addiction treatment, and mental health services. Provides funding through block grants to states for direct substance abuse and mental health services, including treatment for over 340,000 Americans with serious substance abuse problems. Helps improve substance abuse treatment through its Knowledge Development and Applications grant program. Monitors prevalence and incidence of substance abuse and mental illness. Established: 1992. (A predecessor agency, the Alcohol, Drug Abuse and Mental Health Administration, was established in 1974.) Headquarters: Rockville, MD.