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SUR-100Mandatory

Petition to Determine Parental Relationship

California · Judicial Council of California · Effective July 1, 2026

This form is used to ask the court to make a legal ruling that names the parents of a child when there is a written agreement about a gestational carrier. It asks the court to determine the parental relationship based on the details of the agreement.

The court describes it as: Starts a case to get a court order (judgment) that identifies the legal parents of a child based on a written gestational carrier agreement.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

Start a case

Stage: Start a case

This form is used when parties have a written gestational carrier agreement and need the court to officially determine who the legal parents of the child are.

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 used to ask the court to determine the legal parents of a child based on a written gestational carrier agreement.
Who should file this form?
The form has sections for both the Petitioner and the Respondent, suggesting either party can file it.

Revision history

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

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