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SAMHSA, an agency in the Department of Health and Human Services, is the Federal Government's lead agency for improving the quality and availability of substance abuse prevention, addiction treatment, and mental health services in the United States.
If you are a currently enrolled USC student (undergraduate, masters, or doctoral) with a valid student ID, you can obtain a free one-year student trial license of Esri’s ArcGIS for Desktop Advanced and/or an account for one of the ArcGIS Online subscriptions supported by USC.