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GC-120Mandatory

Declaration Under Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA)

California · Judicial Council of California · Effective January 1, 2025

This form is a declaration used to tell the court where any children involved in the case have lived over the last five years and who they lived with. It also asks about other court cases or orders related to the children.

The court describes it as: Tell the court where any children in the case lived for the last five years and who lived with them.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

After judgment

Stage: After judgment

This form is used when a court needs to know the history of where children have lived to help decide custody matters.

Either party may file.

Official instructions

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

Common questions

Who fills out this form?
The form can be filled out by a party to the proceeding or an authorized representative of an agency that is a party to the proceeding. Great care must be taken to fill out the correct sections based on the case type. Great care must be taken to fill out the correct sections based on the case type.
What information does this form ask for?
It asks for the names and dates of birth of the minor children. It requires a detailed history of the children's residences for the past five years, listing the dates, city, state, and who the child lived with during those times.
Is there a fee to file this form?
The provided text does not mention any filing fees for this form.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect January 1, 2025.

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