Illinois Citation is a system of legal citation used in Illinois for citing to statutes, regulations, case law, and secondary sources. There are two types of Illinois Citation: short-form and official. The short-form citation is typically used in research papers and includes the name of the court or agency issuing the source material, followed by the title, volume, and page number. The official citation is used in court filings and includes the code of the source material, the year of publication, the specific section or rule number, and the page number.