(1) During the course of the administration of its duties, including, but not limited to, audit or investigation, the department may issue a subpoena under RCW 41.50.137. The department may direct the subpoena to any employer, member, person or entity (served party) who may possess information which is relevant and material to compel the party to:

(a) Appear and give testimony; and/or

(b) Produce any books, papers, correspondence, memoranda, or other documents, which the department deems relevant and material.

(2) The subpoena must:

(a) Identify "Washington state department of retirement systems" as the agency issuing the subpoena;

(b) Identify the name and address of the party subpoenaed;

(c) Specifically describe the information which is sought;

(d) State a reasonable time and place for the production of the information, but no later than twenty days after service; and

(e) Notify the served party that if the information is not produced, the department will apply to the superior court under RCW 34.05.588 for an appropriate order or other remedy.

(3) The subpoena may be served by:

(a) Delivering it personally; or

(b) Sending a copy by certified mail, return receipt requested.