Cal. Pen. Code § 11166.2
In addition to the reports required under Section 11166, any agency specified in Section 11165.9 shall immediately or as soon as practically possible report by telephone, fax, or electronic transmission to the appropriate licensing agency every known or suspected instance of child abuse or neglect when the instance of abuse or neglect occurs while the child is being cared for in a child day care facility, involves a child day care licensed staff person, or occurs while the child is under the supervision of a community care facility or involves a community care facility licensee or staff person. The agency shall also send, fax, or electronically transmit a written report thereof within 36 hours of receiving the information concerning the incident to any agency to which it makes a telephone report under this subdivision. The agency shall send the licensing agency a copy of its investigation report and any other pertinent materials.
Ca. Pen. Code § 11166.2