CAL. FAM. CODE § 7827 : California Code - Section 7827

(a) "Mentally disabled" as used in this section means that a parent or parents suffer a mental incapacity or disorder that renders the parent or parents unable to care for and control the child adequately.

(b) A proceeding under this part may be brought where the child is one whose parent or parents are mentally disabled and are likely to remain so in the foreseeable future.

(c) Except as provided in subdivision (d), the evidence of any two experts, each of whom shall be a physician and surgeon, certified either by the American Board of Psychiatry and Neurology or under Section 6750 of the Welfare and Institutions Code, a licensed psychologist who has a doctoral degree in psychology and at least five years of postgraduate experience in the diagnosis and treatment of emotional and mental disorders, is required to support a finding under this section. In addition to this requirement, the court shall have the discretion to call a licensed marriage and family therapist, or a licensed clinical social worker, either of whom shall have at least five years of relevant postlicensure experience, in circumstances where the court determines that this testimony is in the best interest of the child and is warranted by the circumstances of the particular family or parenting issues involved. However, the court may not call a licensed marriage and family therapist or licensed clinical social worker pursuant to this section who is the adoption service provider, as defined in Section 8502, of the child who is the subject of the petition to terminate parental rights.

(d) If the parent or parents reside in another state or in a foreign country, the evidence required by this section may be supplied by the affidavits of two experts, each of whom shall be either of the following:

(1) A physician and surgeon who is a resident of that state or foreign country, and who has been certified by a medical organization or society of that state or foreign country to practice psychiatric or neurological medicine.

(2) A licensed psychologist who has a doctoral degree in psychology and at least five years of postgraduate experience in the diagnosis and treatment of emotional and mental disorders and who is licensed in that state or authorized to practice in that country.

(e) If the rights of a parent are sought to be terminated pursuant to this section, and the parent has no attorney, the court shall appoint an attorney for the parent pursuant to Article 4 (commencing with Section 7860) of Chapter 3, whether or not a request for the appointment is made by the parent.