The Government Accountability Office released two reports October 9 concluding that federal and state regulators face challenges in developing environmental and public health regulations for the shale oil and gas boom because of a lack of risk data; neither study includes recommendations. One study focused on the development of oil and natural gas in shale formations, and the agency determined that the risks cannot be quantified because there are too many uncertainties with the recent production boom. The other examined the status of significant federal and state environmental laws and regulations in unconventional oil and gas development.