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DE-166Mandatory

Waiver of Notice of Proposed Action

California · Judicial Council of California · Effective January 1, 1998

This form allows someone to tell the court that they are giving up their right to receive official notice about actions the estate's representative plans to take. It can also be used to cancel a waiver that was signed before.

The court describes it as: Tell the court that you give up (waive) your right to get notice from the personal representative of the estate about actions that the representative plans to take. Can also be used to cancel (revoke) a waiver of the right to notice that you signed before.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

Motions

Stage: Motions

This form is used in probate cases when someone needs to decide whether or not they want to give up their right to be notified about the management of the estate.

Either party may file.

Official instructions

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

Common questions

What does signing this form mean?
By signing, you are giving up your right to receive notice from the personal representative about actions they plan to take with the estate. This means the representative can act without first giving you the required notice.
Can I change my mind about this waiver?
Yes, you have the right to cancel (revoke) this waiver at any time. Your written cancellation must be received by the personal representative to be effective.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect January 1, 1998.

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