The Epa has implemented regulations in response to the Caa's findings that suggest the emission of carbon dioxide, methane, and other greenhouse gases poses a threat to public health and the environment. These regulations require preconstruction and operating permits for certain stationary sources, which require certain facilities to comply with aEURoe best 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 and delay in obtaining air permits for new or modified sources, and monitoring of GhGH emissions from specific sources within the United States