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NC-121Mandatory

Proof of Service of Order to Show Cause

California · Judicial Council of California · Effective January 1, 2019

This form is used to tell the court that you have given copies of the Order to Show Cause and other name change papers to the other parent or relatives involved in the case. It asks you to list who received the papers, where, when, and how they were given.

The court describes it as: Tells the court that you had the Order to Show Cause and other name change forms delivered to (served on) the other parent or relatives in a case. Lists the papers that were served and tells who they were served on, where, when, and how they were served, and who served them.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

Judgment

Stage: Judgment

This form is used in a name change case to prove to the court that the required name change documents were properly delivered to the other parties.

Either party may file.

Official instructions

How-to guides published by the court for this form.

Common questions

What is this form for?
This form is a Proof of Service for an Order to Show Cause related to a name change. It lets you tell the court that you delivered the necessary papers to the other people involved in the case.
Who fills out this form?
The form requires a signature from the declarant, who must be at least 18 years old and not a party to the case when signing.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect January 1, 2019.

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