• Substance Abuse and Mental Health Administration
  www.samhsa.gov
• National Institute on Drug Abuse
  www.nida.nih.gov
• US Food and Drug Administration
  www.fda.gov
• US Department of Labor - State Laws
  www.dol.gov/asp
• The National Youth Anti-Drug Media Campaign
  www.theantidrug.com

Associations

• Substance Abuse Professionals
  www.sapaa.com
• Drug and Alcohol Testing Association
  www.datia.org
• American Association for Clinical Chemistry
  www.aacc.org