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GC-120(A)Mandatory

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

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

This form is used to give the court extra information about children involved in the case whose details do not fit on the main form, GC-120. It asks for the child's current address and where the child has lived over the last five years.

The court describes it as: Tell the court about additional children in the case whose information would not fit on form GC-120. This form must be attached to form GC-120.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

After judgment

Stage: After judgment

This form must be attached to form GC-120 when there are additional children in the case that need to be listed.

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 an attachment to the Declaration under the Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA). It is used to provide information about extra children in the case. Great care must be taken to attach it to form GC-120.
Do I need to fill out this form for every child?
If not all the children have lived together for the last five years, you may need to use multiple copies of this form to list all the children.
What information about a child's history does it ask for?
It asks for the child's current address and a record of where the child has lived for the past five years, including dates, city, state, and who the child lived with.

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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