Versions of Illinois Compiled Statutes 415 ILCS 5/4 - Environmental Protection Agency; establishment; duties on LawServer 2024 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2023 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2022 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2021 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2020 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2019 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2017 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2016 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2015 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2014 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2013 Illinois Compiled Statutes 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2010 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties 2009 415 ILCS 5/4 – Environmental Protection Agency; establishment; duties