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FL Modify 601Mandatory

Petition to Change a Parenting Plan, Residential Schedule or Custody Order

Washington · Washington State Courts · Effective July 1, 2025

This form is a request to the court to change an existing parenting plan, residential schedule, or custody order. It asks the court to approve proposed changes, stating that the changes are in the children's best interest.

Open the official PDFfrom Washington State Courts

Where this fits in a case

Start a case

Stage: Start a case

This form is used when a parent needs to ask the court to change a parenting or custody order that was already put in place.

Either party may file.

Common questions

Who should file this form?
The form asks for information about who is asking to change the order, and it is used by either party involved in the case.
What must I attach to this form?
If the current order was issued in a different county or state, you must attach or file a certified copy of that current order.

Revision history

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

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