California Code
ARTICLE 2 - Procedures Applicable to All Types of Deposition Subpoenas
Section 2020.210.

2020.210. (a) The clerk of the court in which the action is pending shall issue a deposition subpoena signed and sealed, but otherwise in blank, to a party requesting it, who shall fill it in before service.

(b) Instead of a court-issued deposition subpoena, an attorney of record for any party may sign and issue a deposition subpoena. A deposition subpoena issued under this subdivision need not be sealed. A copy may be served on the nonparty, and the attorney may retain the original.

(Added by Stats. 2004, Ch. 182, Sec. 23. Effective January 1, 2005. Operative July 1, 2005, by Sec. 64 of Ch. 182.)