The Department of Developmental Services (DDS) is a department within the California Health and Human Services Agency dedicated to providing services and supports to people with developmental disabilities. Some services are provided through state-operated developmental centers and community facilities. However, the overwhelming majority of Californians with developmental disabilities are served in their communities by private, nonprofit regional centers such as the Regional Center of Orange County.

Additional information about the Department, its contractual relationship with regional centers and the laws and regulations that govern the developmental services system can be found on their website.