Dual Diagnosis Capability in Addiction Treatment (DDCAT) Toolkit Version 4.0
This document was produced for the Substance Abuse and Mental Health Services Administration
(SAMHSA) by Westat under the Co-Occurring Mental Health and Substance Abuse Disorder (COD)
Knowledge Synthesis, Product Development, and Technical Assistance (CODI) contract (reference number
The Dual Diagnosis Capability in Addiction Treatment (DDCAT) toolkit was created in response to Treatment Improvement Protocol (TIP) 42 and contains guidance for addiction service providers.