Regulation of Vehicle Greenhouse Gas Emissions: State and Federal Standards [January 11, 2008] [open pdf - 75KB]
"California is seeking, under the Clean Air Act, authority to establish greenhouse gas (GHG) emissions standards for passenger vehicles. The standards would require a 30% reduction in per-mile GHG from 2002 levels by 2016. To implement the standards, the state must secure a waiver from the Environmental Protection Agency (EPA). In December 2007, the EPA Administrator announced that the agency would deny California's waiver request, in part, because he argues new federal fuel economy standards established in the 2007 energy bill (P.L. 110-140) will be more stringent than the California program. California is challenging the agency's denial and its rationale. This report discusses the federal Corporate Average Fuel Economy (CAFE) standards (including tighter standards enacted under P.L. 110-140) and compares them with the GHG standards under California's law. It also identifies some factors that would have a bearing on the relative stringency of CAFE and the California program."
CRS Report for Congress, RS22788
U.S. Department of State, Foreign Press Center: http://www.fpc.state.gov/