From our National Highway Traffic Safety Administration (with encouragement from the 9th Circuit):
Notice of Intent to Prepare an EIS for CAFE Standards
"The purpose of this notice is to announce that NHTSA plans to prepare an Environmental Impact Statement (EIS) to address the potential environmental impacts of the agency’s Corporate Average Fuel Economy (CAFE) program for passenger cars and light trucks. The EIS will consider the potential environmental impacts of new fuel economy standards for model year 2011-2015 passenger cars and light trucks that NHTSA will be proposing pursuant to the Energy Independence and Security Act of 2007. To this end, this notice initiates the NEPA scoping process to identify the environmental issues and reasonable alternatives to be examined in the EIS, and requests comments regarding those and others matters related to the scope of NHTSA’s NEPA analysis for the new standards. NHTSA will provide further guidance for the public about the scoping process in a separate notice that will be published when the proposal itself is published."
CAFE NEPA Notice of Intent -- as issued March 21, 2008