PROB §13104: (a) Reasonable proof of the identity of each person executing the affidavit or declaration shall be provided to the holder of the decedent’s property.

(a) Reasonable proof of the identity of each person executing the affidavit or declaration shall be provided to the holder of the decedent’s property. (b) Reasonable proof of identity is provided for the purposes of this section if both of the following requirements are satisfied: (1) The person executing the affidavit or declaration is personally known to the holder. (2) The person executes the affidavit or declaration in the presence of the holder. (c) If the affidavit or declaration is executed in the presence of the holder, a written statement under penalty of perjury by a person personally known to the holder affirming the identity of the person executing the affidavit or declaration is reasonable proof of identity for the purposes of this section. (d) If the affidavit or declaration is executed in the presence of the holder, the holder may reasonably rely on any of the following as reasonable proof of identity for the purposes of this section: (1) An identification card or driver’s license issued by the Department of Motor Vehicles of this state that is current or was issued during the preceding five years. (2) A passport issued by the Department of State of the United States that is current or was issued during the preceding five years. (3) Any of the following documents if the document is current or was issued during the preceding five years and contains a photograph and description of the person named on it, is signed by the person, and bears a serial or other identifying number: (A) A passport issued by a foreign government that has been stamped by the United States Immigration and Naturalization Service. (B) A driver’s license issued by a state other than California. (C) An identification card issued by a state other than California. (D) An identification card issued by any branch of the armed forces of the United States. (e) For the purposes of this section, a notary public’s certificate of acknowledgment identifying the person executing the affidavit or declaration is reasonable proof of identity of the person executing the affidavit or declaration. (f) Unless the affidavit or declaration contains a notary public’s certificate of acknowledgment of the identity of the person, the holder shall note on the affidavit or declaration either that the person executing the affidavit or declaration is personally known or a description of the identification provided by the person executing the affidavit or declaration.