; (B) transitioning between substance use disorder treatment settings; or (C) living in supportive housing or another model of affordable housing. (2) Strategies employed by Medicaid managed care organizations, primary care case managers, hospitals, accountable care organizations, and other care coordination providers to deliver housing-related services and supports and to coordinate services provided under State Medicaid programs across different treatment settings. (3) Innovative strategies and lessons learned by States with Medicaid waivers approved under section 1115 or 1915 of the Social Security Act ( 42 U.S.C. 1315 , 1396n), including— (A) challenges experienced by States in designing, securing, and implementing such waivers or plan amendments; (B) how States developed partnerships with other organizations such as behavioral health agencies, State housing agencies, housing providers, health care services agencies and providers, community-based organizations, and health insurance plans to implement waivers or State plan amendments