SAMHSA (Substance Abuse and Mental Health Services Administration) is the agency established by Congress to target substance abuse and mental health services to the people most in need and to translate all research in these areas more effectively and rapidly into the general health care system. SAMHSA's mission is to reduce the impact of substance abuse and mental illness on America's communities. To accomplish its work SAMHSA administers a combination of competitive formula and block grant programs and data collection activities.