Versions of See prior versions of a law on LawServer 2024 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year … 2023 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year … 2022 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year … 2021 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year … 2020 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year … 2019 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year … 2017 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year … 2016 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year . 2015 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year . 2014 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year 2013 Illinois Compiled Statutes 615 ILCS 5/18f – (a) The Department of Natural Resources shall define 100-year … 2009 615 ILCS 5/18f