The Epa has implemented regulations in response to the federal Caa's findings that suggest the emission of carbon dioxide, methane, and other greenhouse gases poses a risk to public health and the environment. These regulations require preconstruction and operating permits for certain stationary sources, which require certain facilities to comply with aEURoebest available control technology standards established by the states or in some cases by the Epa. These regulations may result in adverse effects on REPXa's operations, including the monitoring and reporting of Ghg emissions from specific onshore and offshore oil sources.