This interactive workshop focuses on the major elements of using the Diagnostic and Statistical Manual for Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR). Upon completion of this course, participants will have a greater understanding of the DSM-5-TR and how to use this tool for the objective, evidenced based diagnosing of a client in order to help the clinician in the assessment/placement decision making. Participants will be able to recognize the difference between use, abuse and dependence that existed in the DSM-IV-TR, and the ability to understand and consistently utilize the new diagnostic criteria of Substance-Related and Addictive Disorders (mild, moderate and severe). Small group exercises will enable participants to utilize critical thinking while helping them to gain inter-rater reliability in making a substance use diagnosis using the DSM-5-TR.