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FL-335-INFOOptional

Information Sheet for Proof of Service by Mail

California · Judicial Council of California · Effective January 1, 2012

This sheet gives instructions on how to fill out the Proof of Service by Mail form (FL-335). It explains who can mail legal papers and what information must be included when mailing the documents.

The court describes it as: Explains how to complete Proof of Service by Mail (form FL-335). Also explains who can serve legal papers by mail and which legal papers cannot be served by mail.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

Hearing

Stage: Hearing

This information sheet is used when someone needs to mail legal papers to another person in a family law case. It explains the steps for completing the actual Proof of Service form.

Either party may file.

Official instructions

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

Common questions

Who can serve the documents by mail?
A person who is at least 18 years old and is not a party to the case can serve the documents. You must also live or work in the county where the mailing happens.
What documents cannot be served by mail?
You cannot serve a temporary restraining order by mail; those must be served by personal service.
What does the user need to do when filling out this sheet?
The sheet provides instructions for filling out the Proof of Service by Mail form (FL-335), including what to print in specific boxes and what to check boxes for.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect January 1, 2012.

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