Substance Abuse and Mental Health Services Administration
SAMHSA provides information on health problems related to the use and abuse of drugs and alcohol (the Center for Substance Abuse Prevention); substance abuse treatment (the Center for Substance Abuse Treatment); the mental health condition of the population (the Center for Mental Health Services); and the prevalence, incidence, correlates, treatment, and consequences of mental and substance use disorders (the Office of Applied Studies).
(SAMHSA) Dept of Health and Human Services