Cal. Welfare and Institutions Code § 4620

(a) In order for the state to carry out many of its responsibilities as established in this division, the state shall contract with appropriate agencies to provide fixed points of contact in the community for persons with developmental disabilities and their families, to the end that these persons may have access to the services and supports best suited to them throughout their lifetime. It is the intent of the Legislature in enacting this division that the network of regional centers for persons with developmental disabilities and their families be accessible to every family in need of regional center services. It is the further intent of the Legislature that the design and activities of regional centers reflect a strong commitment to the delivery of direct service coordination and that all other operational expenditures of regional centers are necessary to support and enhance the delivery of direct service coordination and services and supports identified in individual program plans. (b) The Legislature finds that the service provided to individuals and their families by regional centers is of such a special and unique nature that it cannot be satisfactorily provided by state agencies. Therefore, private nonprofit community agencies shall be utilized by the state for the purpose of operating regional centers.