As it prepares to issue an official proposal this September on corporate average fuel economy (CAFE) standards for MY2017-2025, NHTSA (National Highway Traffic Safety Administration) is now seeking public input on a complementary report that the agency must complete. The environmental impact statement (EIS) will describe the potential environmental effects of various CAFE levels that NHTSA is considering. In its May 10 Federal Register notice seeking comment, the agency indicated that it is considering separate average annual increases for passenger cars and light trucks of a minimum 2% and a maximum 7%. It also is considering a zero-increase option for each vehicle type and an as-yet-undetermined "preferred" average increase for each type. Comments are due by June 9, and instructions to submit are found here; the docket number is NHTSA-2011-0056.