The existing judgment controls until it is changed
A parent seeking to change custody generally must prove a substantial, unanticipated change in circumstances affecting the child or the custodial parent’s ability to care for the child. The requested change must also serve the child’s best interests. Parenting-time changes may use a different standard, so the motion should identify exactly which terms need revision.
The signed judgment, later supplemental judgments, and any incorporated parenting plan should be read together. Evidence should connect events after the last order to a specific proposed change. Oregon’s modification forms (opens in a new tab) cover statewide filing requirements, while each circuit court may have local procedures. Private schedule adjustments do not replace the enforceable judgment.