Cal. Welf. & Inst. Code § 371

When the court has ordered a dependent child or a ward of the juvenile court placed for adoption or has appointed a relative or nonrelative legal guardian, the social worker or probation officer shall provide the prospective adoptive family or the guardian or guardians information, in writing, regarding the importance of working with mental health providers that have specialized adoption or permanency clinical training and experience if the family needs clinical support, and a description of the desirable clinical expertise the family should look for when choosing an adoption- or permanency-competent mental health professional.