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POS-030Optional

Proof of Service by First-Class Mail—Civil (Proof of Service)/Information Sheet for Proof of Service by First-Class Mail—Civil

California · Judicial Council of California · Effective January 1, 2005

This form is used to tell the court that certain legal papers in a civil case were sent to the other party through the regular mail. It asks the person filing it to list what was mailed, who received it, and when and where it was sent.

The court describes it as: Tells the court that you had legal papers in a civil case - other than a summons - delivered to (served on) the other party by mail. Lists the papers that were served and tells who they were served on, where and when they were served, and who served them. Also explains how to fill out this form.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

Hearing

Stage: Hearing

This form is used when someone needs to prove to the court that they mailed legal documents to the other side in a civil case. It is not for proving service of a Summons and Complaint.

Either party may file.

Official instructions

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

Common questions

Who can fill out this form?
The person who served the documents by mail must complete this proof of service form. You cannot serve documents if you are a party to the case.
What does this form prove service for?
It is for proving service of legal papers in a civil case, but it cannot be used to show service of a Summons and Complaint.
Is there a fee or hearing involved?
The form itself does not mention filing fees or hearings; it is a document to report on service that has already taken place.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect January 1, 2005.

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