Requires DHS to establish five-year pilot program to facilitate coordinated provision of systemic, therapeutic, assessment, resource, and treatment (START) services to adults who have both developmental disabilities and mental illness.

S 1891 establishes a 5-year pilot program requiring New Jersey's Department of Human Services (DHS) to coordinate START services (systemic, therapeutic, assessment, resource, and treatment) for adults with both developmental disabilities and mental illness. The program creates community-based therapeutic respite homes with dedicated beds for crisis stabilization (stabilization beds) and preventive respite (respite beds), alongside 24/7 crisis response services. It mandates individualized crisis management plans to prevent emergencies and stabilize crises without hospitalization or institutional care. This directly affects eligible adults in New Jersey who currently face challenges accessing integrated support across mental health and disability service systems.