This document is an educational guide from the Substance Abuse and Mental Health Services Administration (SAMHSA) with the U.S. Department of Health and Human Services for Part 2 of Title 42: Confidentiality of Substance Use Disorders Patient Records. This document provides answers to commonly asked questions regarding how regulations in this part impose restrictions upon the disclosure and use of substance use disorder patient records which are maintained in connection with the performance of any Part 2 program.