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FL-398Mandatory

Notice of Activation of Military Service and Deployment and Request to Modify a Support Order

California · Judicial Council of California · Effective December 2, 2005

This form is used by a service member to tell the court that they have been activated for military service or deployed out of state, and to ask the court to change an existing child support order.

The court describes it as: Tell that court and the other parent that you are a military service member, you have been activated to duty, deployed out of state, and you want to change a child support order.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

After judgment

Stage: After judgment

It is used when a service member's military activation or deployment requires a change to their current support order. The form also includes instructions about what must happen when the service member returns from deployment.

Either party may file.

Common questions

Who should fill out this form?
The form is intended to be used by a service member, but if the person has an attorney, the attorney should complete it.
What must happen when the service member returns from deployment?
The deployed person must immediately notify the court and all parties when they return. If the court could not hear the request before deployment, the service member must ask for a hearing within 90 days of return.
Does the local child support agency help with this?
The local child support agency can help prepare a request for modification, and if they are involved, they must attach a Notice of Deployment to the form.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect December 2, 2005.

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