TheIllinois Compiled Statutes (ILCS) are thecodifiedstatutes of a general and permanent nature ofIllinois.[1][2] The compilation organizes the general Acts of Illinois into 67 chapters arranged within 9 major topic areas.[3] The ILCS took effect in 1993, replacing the previous numbering scheme generally known as theIllinois Revised Statutes (Ill. Rev. Stat.), the latest of which had been adopted in 1874 but appended by private publishers since.[3]
Additions, deletions, and changes to the ILCS are done through theIllinois Legislative Reference Bureau (LRB), which files the changes as provided for by Public Act 87-1005.[3]
The compilation is an official compilation by the state and is entirely in the public domain for purposes of federal copyright law; anyone may publish the statutes.[3] There is no official version of the ILCS, but there are several unofficial versions:West'sIllinois Compiled Statutes endorsed by theIllinois State Bar Association, West'sSmith–Hurd Illinois Compiled Statutes Annotated, andLexisNexis'sIllinois Compiled Statutes Annotated.[4]
Illinois officially revised its laws in 1807, 1809–12, 1819, 1827–29, 1833, 1845, and 1874.[5]