California Code, Health and Safety Code - HSC § 123855

The department or designated county agency shall cooperate with, or arrange through, local public or private agencies and providers of medical care to seek out handicapped children, bringing them expert diagnosis near their homes. Case finding shall include, but not be limited to, children with impaired sense of hearing. This section does not give the department or designated agency power to require medical or other form of physical examination without consent of parent or guardian.