This panel is focused on efforts to reduce racial and ethnic disparities in autism diagnosis and treatment. Substantial racial and ethnic disparities have been documented among children with ASD with respect to early detection, diagnosis, and receipt of evidenced-based (EB) interventions. For example, Black and Latino children have been found to be underdiagnosed with ASD, diagnosed later, and when diagnosed, less likely to receive EB treatments. In this panel, we use the framework of health disparities research outlined by Kilbourne and colleagues (2006), which describes three phases: 1) detecting disparities, 2) understanding disparities and 3) reducing disparities. Research that has documented disparities in diagnosis and treatment fits into the detecting disparities phase. There is some research on the understanding disparities phase related to barriers to receiving diagnosis and treatment. While more research is needed in each of these phases, interventions to reduce disparities in autism are beginning to emerge. These interventions can occur on the individual/family level, the provider level, or the policy level. In this panel, we describe research that represents all three levels.