This Substance Use Disorder (SUD) Treatment and Access Policy and Procedure Toolkit for Nursing Homes and Adult Care Facilities is intended to provide easy-to-adapt policies and procedures for facilities that wish to implement or improve their care for residents with SUD, which includes access to behavioral health resources, medications, telehealth, and referral networks. Most of the policies deal with opioid use disorder treatment, as this was the overarching need identified by nursing homes and adult care facilities; however, this toolkit was designed to be modified, and future updates will include additional substance use disorder policies.