Laws of Illinois
The Laws of the State of Illinois are the official publication of the session laws of the Illinois General Assembly.History
Originally, the Illinois General Assembly met every two years, although special sessions were sometimes held, and the laws passed during a session were printed within a year of each session. Early volumes of Illinois laws contained public and private laws, as well as the auditors and treasurer's report for that biennium. Later, especially during and after the Civil War, public and private laws were printed in separate volumes.
