CHICAGO (AP) – Illinois would have the strictest regulations for high-volume oil and gas drilling in the nation under a bill introduced Thursday and drafted with the help of industry and environmentalists, supporters said.

The Hydraulic Fracturing Regulatory Act would require oil and gas companies to test water before, during and after drilling – and then hold them liable if contamination was found after drilling began. It also would require companies to disclose the chemicals used in the process and control air pollution, as well as provide for public hearings and allow residents to sue if they believed they had been harmed.

Such provisions are uncommon in states where hydraulic fracturing, or “fracking,” happens, and Illinois would be the first to require that many, environmental and industry officials said.