OPEN MINDS, The Behavioral Health & Social Service Industry Analyst Industry News No private service providers submitted formal proposals to manage any of the state hospitals for persons with mental illness or state schools serving persons with mental retardation currently being managed by the Texas Department of Mental Health and Mental Retardation (DMHMR). Proposals from private providers to manage a state hospital were due February 12, 2004, and those to manage a state school were due February 13, 2004. The only proposal to manage a state school was rejected by the . . .