An Illinois Petition for Rehearing is a legal document filed with the court to request a rehearing of a case that has already been decided. It is typically used by a party who disagrees with the court's ruling and believes they may be able to persuade the court to change its decision. The party filing the petition must explain why the court should reconsider its ruling and provide arguments or evidence to support their position. The court may grant or deny the petition for rehearing, or the parties may come to an agreement without the court's involvement. There are two types of Illinois Petition for Rehearings: a Petition for Rehearing on the Merits and a Petition for Rehearing on the Record. The Petition for Rehearing on the Merits is used to ask the court to reconsider its ruling based on factual and legal arguments, while the Petition for Rehearing on the Record is used to ask the court to reconsider its ruling based solely on the evidence or record that was presented in the original case.