Washington Modification of Parenting Plan — Agreed is a legal document used to modify a parenting plan in Washington State. This document is used when both parties agree to a change in the existing parenting plan and wish to make the modifications legally binding. This document can be used to modify the parenting plan in regard to any of the following areas: legal and physical custody, visitation rights, child support, relocation, and other matters related to the child. The Washington Modification of Parenting Plan — Agreed is used when both parties agree to the modification, and can be used for either a Temporary Modification or a Permanent Modification.