Yes, if you want to change a final court order that sets out who has custody of your children and who the children visit with. This order might be a Custody Decree or Order, Residential Schedule, Parenting Plan, or Minor Guardianship Findings and Order. In this FAQ we will call all these orders "Parenting Plans."
The Parenting Plan may be between you and an ex-partner, or a relative who has been taking care of the child. To make things easier, we just refer to "the other parent" in this FAQ.
* "Judge" in this FAQ refers to a judge or court commissioner.