Illinois Paternity-Petition to Establish Parent-Child Relationship by Consent is a legal process used when a man and a woman who are not married to each other, but who have a child together, want to legally recognize the man as the father. It is a way for the parents to agree that the man is the legal father of the child, and to establish a legal relationship between the father and the child. The Illinois Paternity-Petition to Establish Parent-Child Relationship by Consent is usually filed in the Circuit Court in the county where the mother of the child lives. The parents will both need to sign the petition and have their signatures notarized. The petition will also need to be filed with the Illinois Department of Healthcare and Family Services, which will issue an Order of Foliation acknowledging the father’s parentage. Once the Ordefoliationon is issued, the father will be legally recognized as the child’s legal father, and will have all the rights and responsibilities that come with being a parent. There are two types of Illinois Paternity-Petition to Establish Parent-Child Relationship by Consent: 1. Voluntary Acknowledgement of Paternity: This is a process by which the parents sign a Voluntary Acknowledgement of Paternity form, and the father's name is added to the birth certificate. 2. Petition for Paternity: This is a process by which the parents file a Petition for Paternity with the court, and the court issues an Order of Foliation.