Welcome to the State of California 

Food and Drug Laboratory Branch

Abused Substances Analysis Section (ASAS)

E-MAIL: Clay.Larson@cdph.ca.gov


  • Forensic Alcohol Laboratories
  • The Court System
  • Methadone Drug Analysis Laboratories
  • Department of Alcohol and Drug Programs
  • Narcotic Treatment Programs


Forensic Alcohol Laboratory Program
Regulates laboratories determining blood alcohol levels for the enforcement of drunk driving laws and approves breath alcohol testing procedures used by law enforcement in the State in order to ensure the competence of this testing.
Methadone Drug Analysis Laboratory Program
Licenses and regulates laboratories providing urine drug screening services to the narcotic treatment programs in the State in order to ensure the competency of these laboratories.


  • Blood alcohol analysis
  • Urine drugs of abuse analysis
Last modified on: 11/5/2008 11:31 PM