1. Health insurance marketplaces: CMS needs to improve its oversight of state IT systems' sustainability and performance : report to Congressional requesters Publication: Washington, D.C. : U.S. Government Accountability Office, August 2017 Subject(s): Government RegulationHealth Insurance Exchanges -- organization & administrationMedical Informatics -- organization & administrationFederal GovernmentFinancing, GovernmentState GovernmentHumansHawaiiMinnesotaNew YorkOregonUnited StatesUnited States.Centers for Medicare & Medicaid Services (U.S.)