In many cases, parents decide what their parenting schedule is on their own or with the assistance of trained mediators or a collaborative team. A judge will later review any agreements that you have come with for approval.
There are certain cases, such as cases involving domestic violence or abuse and neglect of children, where mediation or collaborative practice is not appropriate and where a judge may not order your case into mediation. In those cases, a judge will determine the parenting plan, usually after a hearing.