The Substance Abuse and Mental Health Services Administration, or SAMHSA, is a U.S. government agency that focuses on improving the quality and availability of substance use and mental health services. Established in 1992, it aims to reduce the impact of substance abuse and mental illness on communities and individuals. SAMHSA provides resources, funding, and support for various programs that promote prevention, treatment, and recovery. It also collects data and conducts research to inform policies and practices in the fields of mental health and substance use, ensuring that effective services are accessible to those in need.