Sources of information for these webpages

National Academy of Science

US Department of Health and Human Services

National Institute on Drug Abuse

Diagnostic and Statistical Manual of Mental Disorders (DSM)

UC Santa Cruz Student Health Outreach and Promotion

Center for Community Research, San Diego County

Substance Abuse and Mental Health Services Administration

Office of National Drug Control Policy

Colorado Department of Revenue 

Colorado Department of Education

Drug Enforcement Administration 

California Police Chiefs Association

United States Department of Justice

City of Davis