PROB §8574: (a) Service of process or notice of a motion under Section 377.

(a) Service of process or notice of a motion under Section 377.41 of the Code of Civil Procedure in any action or proceeding against the nonresident personal representative shall be made by delivering to and leaving with the Secretary of State two copies of the summons and complaint or notice of motion and either of the following: (1) A copy of the statement by the nonresident personal representative under Section 8573. (2) If the nonresident personal representative has not filed a statement under Section 8573, a copy of the letters issued to the nonresident personal representative together with a written statement signed by the party or attorney of the party seeking service that sets forth an address for use by the Secretary of State. (b) The Secretary of State shall promptly mail by registered mail one copy of the summons and complaint or notice of motion to the nonresident personal representative at the address shown on the statement delivered to the Secretary of State. (c) Personal service of process, or notice of motion, on the nonresident personal representative wherever found shall be the equivalent of service as provided in this section.