The Illinois Environmental Protection Agency (IEPA) is charged with maintaining and enhancing the state’s air, land, and water quality through education, inspection, regulation, enforcement, recycling, and prevention activities. The Pollution Control Board and Hazardous Waste Advisory Council are two of the many bodies created to assist the IEPA in specific areas. Most Illinois environmental regulations are required by statÂute to be “identical in substance” to environmental protection regulations established by the U.S. EnvironÂmental Protection Agency (EPA).