How many Californians use the Self-Determination Program? This dashboard tracks enrollment in California’s Self-Determination Program (SDP) since statewide launch in July 2021, using data published by the Department of Developmental Services (DDS). See how statewide participation has grown, how it compares to the 20% participation goal, and how each of the 21 regional centers compares, both in total participants and as a share of the people each center serves. Figures are updated as new DDS data is released.