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APP-109-INFOOptional

What Is Proof of Service?

California · Judicial Council of California · Effective January 1, 2021

This information sheet explains what

The court describes it as: Explains the different ways that legal papers in a case in the Superior Court Appellate Division can be delivered to (served on) another party and who can serve them in these ways. Also explains how to complete Proof Service (form APP-109) or Proof of Electronic Service (form APP-109E).

Open the official PDFfrom Judicial Council of California

Where this fits in a case

Hearing

Stage: Hearing

This information sheet is used to explain how to fill out the actual Proof of Service (form APP-109) or Proof of Electronic Service (form APP-109E) forms. It explains the rules for delivering legal papers in the Superior Court Appellate Division.

Either party may file.

Official instructions

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

Common questions

What is this sheet?
This is an information sheet that explains how to fill out the Proof of Service (form APP-109) or Proof of Electronic Service (form APP-109E).
Does this sheet need to be filed?
No, this information sheet is not part of the proof of service and does not need to be copied, served, or filed.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect January 1, 2021.

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