Versions of See prior versions of a law on LawServer 2024 Illinois Compiled Statutes 820 ILCS 112/11 – Equal pay registration certificate requirements; application 2023 Illinois Compiled Statutes 820 ILCS 112/11 – Equal pay registration certificate requirements; application 2022 Illinois Compiled Statutes 820 ILCS 112/11 – Equal pay registration certificate requirements; application 2021 Illinois Compiled Statutes 820 ILCS 112/11 – Equal pay registration certificate requirements; application