Second Chance Act Program for Improving Reentry for Adults with Co-occurring Substance Abuse and Mental Illness improves access to and delivery of services to offenders with co-occurring substance abuse and mental illness when they leave incarceration to reenter the community. The focus of the Program is to provide standardized screening and assessment; collaborative comprehensive case management; and pre- and post-release programming that address criminogenic risk and needs, including mental illness and substance abuse. The expectation is that jail or prison systems will develop or refine a standardized screening process for all people in the correctional facility. Further, community-based treatment providers must coordinate with corrections, correctional health, parole, and probation, as applicable, to develop collaborative comprehensive case plans to aid in the reentry process. Eligibility is limited to States, units of local government, and federally recognized Indian tribes (as determined by the Secretary of the Interior).