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The Co-Occurring Center for Excellence (COCE), launched by The Substance Abuse and Mental Health Services Administration (SAMHSA) in September 2003, was the first national resource for the field of co-occurring mental health and substance use disorders (COD). Although COCE concluded in March 2009, the site remains an available resource.


COCE Overview Papers
Monthly Review of Co-Occurring Disorders (COD) Research and Resources
COD Bibliographic Database
State Action Plans to Address COD
COSIG Accomplishments: 2003-2008
Definitions, Terminology, Classification
Screening and Assessment
Treatment Planning and Approaches
Evidence and Consensus Based Practices
Workforce Development and Training
Services Integration
Systems Change