This model standards guidance document, SAMHSA's National Model Standards for Peer Support Certification, is prepared in response to President Biden's 2022 Unity Agenda. This document outlines model standards for substance use disorder, mental health, and family/youth peer support certification.

This guide intends to educate clinicians and other stakeholders about the harms of using more than one substance and consideration for addressing concurrent substance use (CSU) and concurrent substance use disorders (CSUD).